]> code.delx.au - refind/blobdiff - refind/main.c
New image-scaling code; used for icons and (optionally) for scaling
[refind] / refind / main.c
index d5ec6ce574d8bce02096940fcef3bad25ff75f61..358106701cbb42b4669935ec3a85eceda75b74fe 100644 (file)
@@ -34,7 +34,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /*
- * Modifications copyright (c) 2012 Roderick W. Smith
+ * Modifications copyright (c) 2012-2013 Roderick W. Smith
  *
  * Modifications distributed under the terms of the GNU General Public
  * License (GPL) version 3 (GPLv3), a copy of which must be distributed
 #include "../include/syslinux_mbr.h"
 
 #ifdef __MAKEWITH_GNUEFI
+#ifndef EFI_SECURITY_VIOLATION
 #define EFI_SECURITY_VIOLATION    EFIERR (26)
+#endif
 #else
 #include "../EfiLib/BdsHelper.h"
+#include "../EfiLib/legacy.h"
 #endif // __MAKEWITH_GNUEFI
 
+#ifndef EFI_OS_INDICATIONS_BOOT_TO_FW_UI
+#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001ULL
+#endif
+
 //
-// variables
+// constants
 
 #define MACOSX_LOADER_PATH      L"System\\Library\\CoreServices\\boot.efi"
 #if defined (EFIX64)
-#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\EFI\\tools\\shellx64.efi,\\shellx64.efi"
+#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\EFI\\tools\\shellx64.efi,\\shell.efi,\\shellx64.efi"
+#define GPTSYNC_NAMES           L"\\EFI\\tools\\gptsync.efi,\\EFI\\tools\\gptsync_x64.efi"
+#define MEMTEST_NAMES           L"memtest86.efi,memtest86_x64.efi,memtest86x64.efi,bootx64.efi"
 #define DRIVER_DIRS             L"drivers,drivers_x64"
+#define FALLBACK_FULLNAME       L"EFI\\BOOT\\bootx64.efi"
+#define FALLBACK_BASENAME       L"bootx64.efi"
+#define EFI_STUB_ARCH           0x8664
 #elif defined (EFI32)
-#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\EFI\\tools\\shellia32.efi,\\shellia32.efi"
+#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\EFI\\tools\\shellia32.efi,\\shell.efi,\\shellia32.efi"
+#define GPTSYNC_NAMES           L"\\EFI\\tools\\gptsync.efi,\\EFI\\tools\\gptsync_ia32.efi"
+#define MEMTEST_NAMES           L"memtest86.efi,memtest86_ia32.efi,memtest86ia32.efi,bootia32.efi"
 #define DRIVER_DIRS             L"drivers,drivers_ia32"
+#define FALLBACK_FULLNAME       L"EFI\\BOOT\\bootia32.efi"
+#define FALLBACK_BASENAME       L"bootia32.efi"
+#define EFI_STUB_ARCH           0x014c
 #else
-#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi"
+#define SHELL_NAMES             L"\\EFI\\tools\\shell.efi,\\shell.efi"
+#define GPTSYNC_NAMES           L"\\EFI\\tools\\gptsync.efi"
+#define MEMTEST_NAMES           L"memtest86.efi"
 #define DRIVER_DIRS             L"drivers"
+#define FALLBACK_FULLNAME       L"EFI\\BOOT\\boot.efi" /* Not really correct */
+#define FALLBACK_BASENAME       L"boot.efi"            /* Not really correct */
 #endif
-
-#define MOK_NAMES               L"\\EFI\\tools\\MokManager.efi,\\EFI\\redhat\\MokManager.efi,\\EFI\\ubuntu\\MokManager.efi,\\EFI\\suse\\MokManager"
+#define FAT_ARCH                0x0ef1fab9 /* ID for Apple "fat" binary */
 
 // Filename patterns that identify EFI boot loaders. Note that a single case (either L"*.efi" or
 // L"*.EFI") is fine for most systems; but Gigabyte's buggy Hybrid EFI does a case-sensitive
 #define SUBSCREEN_HINT2            L"Insert or F2 to edit options; Esc to return to main menu"
 #define SUBSCREEN_HINT2_NO_EDITOR  L"Esc to return to main menu"
 
+// Load types
+#define TYPE_EFI    1
+#define TYPE_LEGACY 2
+
 static REFIT_MENU_ENTRY MenuEntryAbout    = { L"About rEFInd", TAG_ABOUT, 1, 0, 'A', NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryReset    = { L"Reboot Computer", TAG_REBOOT, 1, 0, 'R', NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryShutdown = { L"Shut Down Computer", TAG_SHUTDOWN, 1, 0, 'U', NULL, NULL, NULL };
-static REFIT_MENU_ENTRY MenuEntryReturn   = { L"Return to Main Menu", TAG_RETURN, 0, 0, 0, NULL, NULL, NULL };
+static REFIT_MENU_ENTRY MenuEntryReturn   = { L"Return to Main Menu", TAG_RETURN, 1, 0, 0, NULL, NULL, NULL };
 static REFIT_MENU_ENTRY MenuEntryExit     = { L"Exit rEFInd", TAG_EXIT, 1, 0, 0, NULL, NULL, NULL };
+static REFIT_MENU_ENTRY MenuEntryFirmware = { L"Reboot to Computer Setup Utility", TAG_FIRMWARE, 1, 0, 0, NULL, NULL, NULL };
 
 static REFIT_MENU_SCREEN MainMenu       = { L"Main Menu", NULL, 0, NULL, 0, NULL, 0, L"Automatic boot",
                                             L"Use arrow keys to move cursor; Enter to boot;",
                                             L"Insert or F2 for more options; Esc to refresh" };
 static REFIT_MENU_SCREEN AboutMenu      = { L"About", NULL, 0, NULL, 0, NULL, 0, NULL, L"Press Enter to return to main menu", L"" };
 
-REFIT_CONFIG GlobalConfig = { FALSE, FALSE, 0, 0, 0, DONT_CHANGE_TEXT_MODE, 20, 0, 0, GRAPHICS_FOR_OSX, LEGACY_TYPE_MAC, 0,
-                              NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-                              {TAG_SHELL, TAG_APPLE_RECOVERY, TAG_MOK_TOOL, TAG_ABOUT, TAG_SHUTDOWN, TAG_REBOOT, 0, 0, 0, 0, 0 }};
+REFIT_CONFIG GlobalConfig = { FALSE, FALSE, 0, 0, 0, DONT_CHANGE_TEXT_MODE, 20, 0, 0, GRAPHICS_FOR_OSX, LEGACY_TYPE_MAC, 0, 0,
+                              BANNER_NOSCALE,
+                              NULL, NULL, CONFIG_FILE_NAME, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                              { TAG_SHELL, TAG_MEMTEST, TAG_APPLE_RECOVERY, TAG_WINDOWS_RECOVERY, TAG_MOK_TOOL, TAG_ABOUT,
+                                TAG_SHUTDOWN, TAG_REBOOT, TAG_FIRMWARE, 0, 0, 0, 0, 0, 0 }
+                            };
+
+EFI_GUID GlobalGuid = EFI_GLOBAL_VARIABLE;
 
 // Structure used to hold boot loader filenames and time stamps in
 // a linked list; used to sort entries within a directory.
@@ -124,37 +154,28 @@ struct LOADER_LIST {
 
 static VOID AboutrEFInd(VOID)
 {
-    CHAR16 *TempStr; // Note: Don't deallocate; moved to menu structure
-
     if (AboutMenu.EntryCount == 0) {
         AboutMenu.TitleImage = BuiltinIcon(BUILTIN_ICON_FUNC_ABOUT);
-        AddMenuInfoLine(&AboutMenu, L"rEFInd Version 0.6.5.6");
+        AddMenuInfoLine(&AboutMenu, L"rEFInd Version 0.7.7");
         AddMenuInfoLine(&AboutMenu, L"");
         AddMenuInfoLine(&AboutMenu, L"Copyright (c) 2006-2010 Christoph Pfisterer");
-        AddMenuInfoLine(&AboutMenu, L"Copyright (c) 2012 Roderick W. Smith");
+        AddMenuInfoLine(&AboutMenu, L"Copyright (c) 2012-2013 Roderick W. Smith");
         AddMenuInfoLine(&AboutMenu, L"Portions Copyright (c) Intel Corporation and others");
         AddMenuInfoLine(&AboutMenu, L"Distributed under the terms of the GNU GPLv3 license");
         AddMenuInfoLine(&AboutMenu, L"");
         AddMenuInfoLine(&AboutMenu, L"Running on:");
-        TempStr = AllocateZeroPool(256 * sizeof(CHAR16));
-        SPrint(TempStr, 255, L" EFI Revision %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & ((1 << 16) - 1));
-        AddMenuInfoLine(&AboutMenu, TempStr);
+        AddMenuInfoLine(&AboutMenu, PoolPrint(L" EFI Revision %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & ((1 << 16) - 1)));
 #if defined(EFI32)
         AddMenuInfoLine(&AboutMenu, L" Platform: x86 (32 bit)");
 #elif defined(EFIX64)
-        TempStr = AllocateZeroPool(256 * sizeof(CHAR16));
-        SPrint(TempStr, 255, L" Platform: x86_64 (64 bit); Secure Boot %s", secure_mode() ? L"active" : L"inactive");
-        AddMenuInfoLine(&AboutMenu, TempStr);
+        AddMenuInfoLine(&AboutMenu, PoolPrint(L" Platform: x86_64 (64 bit); Secure Boot %s",
+                                              secure_mode() ? L"active" : L"inactive"));
 #else
         AddMenuInfoLine(&AboutMenu, L" Platform: unknown");
 #endif
-        TempStr = AllocateZeroPool(256 * sizeof(CHAR16));
-        SPrint(TempStr, 255, L" Firmware: %s %d.%02d",
-               ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & ((1 << 16) - 1));
-        AddMenuInfoLine(&AboutMenu, TempStr);
-        TempStr = AllocateZeroPool(256 * sizeof(CHAR16));
-        SPrint(TempStr, 255, L" Screen Output: %s", egScreenDescription());
-        AddMenuInfoLine(&AboutMenu, TempStr);
+        AddMenuInfoLine(&AboutMenu, PoolPrint(L" Firmware: %s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16,
+                                              ST->FirmwareRevision & ((1 << 16) - 1)));
+        AddMenuInfoLine(&AboutMenu, PoolPrint(L" Screen Output: %s", egScreenDescription()));
         AddMenuInfoLine(&AboutMenu, L"");
 #if defined(__MAKEWITH_GNUEFI)
         AddMenuInfoLine(&AboutMenu, L"Built with GNU-EFI");
@@ -170,9 +191,65 @@ static VOID AboutrEFInd(VOID)
     RunMenu(&AboutMenu, NULL);
 } /* VOID AboutrEFInd() */
 
+static VOID WarnSecureBootError(CHAR16 *Name, BOOLEAN Verbose) {
+   if (Name == NULL)
+      Name = L"the loader";
+
+   refit_call2_wrapper(ST->ConOut->SetAttribute, ST->ConOut, ATTR_ERROR);
+   Print(L"Secure Boot validation failure loading %s!\n", Name);
+   refit_call2_wrapper(ST->ConOut->SetAttribute, ST->ConOut, ATTR_BASIC);
+   if (Verbose && secure_mode()) {
+      Print(L"\nThis computer is configured with Secure Boot active, but\n%s has failed validation.\n", Name);
+      Print(L"\nYou can:\n * Launch another boot loader\n");
+      Print(L" * Disable Secure Boot in your firmware\n");
+      Print(L" * Sign %s with a machine owner key (MOK)\n", Name);
+      Print(L" * Use a MOK utility (often present on the second row) to add a MOK with which\n");
+      Print(L"   %s has already been signed.\n", Name);
+      Print(L" * Use a MOK utility to register %s (\"enroll its hash\") without\n", Name);
+      Print(L"   signing it.\n");
+      Print(L"\nSee http://www.rodsbooks.com/refind/secureboot.html for more information\n");
+      PauseForKey();
+   } // if
+} // VOID WarnSecureBootError()
+
+// Returns TRUE if this file is a valid EFI loader file, and is proper ARCH
+static BOOLEAN IsValidLoader(EFI_FILE *RootDir, CHAR16 *FileName) {
+    BOOLEAN         IsValid = TRUE;
+#if defined (EFIX64) | defined (EFI32)
+    EFI_STATUS      Status;
+    EFI_FILE_HANDLE FileHandle;
+    CHAR8           Header[512];
+    UINTN           Size = sizeof(Header);
+
+    if ((RootDir == NULL) || (FileName == NULL)) {
+       // Assume valid here, because Macs produce NULL RootDir (& maybe FileName)
+       // when launching from a Firewire drive. This should be handled better, but
+       // fix would have to be in StartEFIImageList() and/or in FindVolumeAndFilename().
+       return TRUE;
+    } // if
+
+    Status = refit_call5_wrapper(RootDir->Open, RootDir, &FileHandle, FileName, EFI_FILE_MODE_READ, 0);
+    if (EFI_ERROR(Status))
+       return FALSE;
+
+    Status = refit_call3_wrapper(FileHandle->Read, FileHandle, &Size, Header);
+    refit_call1_wrapper(FileHandle->Close, FileHandle);
+
+    IsValid = !EFI_ERROR(Status) &&
+              Size == sizeof(Header) &&
+              ((Header[0] == 'M' && Header[1] == 'Z' &&
+               (Size = *(UINT32 *)&Header[0x3c]) < 0x180 &&
+               Header[Size] == 'P' && Header[Size+1] == 'E' &&
+               Header[Size+2] == 0 && Header[Size+3] == 0 &&
+               *(UINT16 *)&Header[Size+4] == EFI_STUB_ARCH) ||
+              (*(UINT32 *)&Header == FAT_ARCH));
+#endif
+    return IsValid;
+} // BOOLEAN IsValidLoader()
+
 // Launch an EFI binary.
 static EFI_STATUS StartEFIImageList(IN EFI_DEVICE_PATH **DevicePaths,
-                                    IN CHAR16 *LoadOptions, IN CHAR16 *LoadOptionsPrefix,
+                                    IN CHAR16 *LoadOptions, IN UINTN LoaderType,
                                     IN CHAR16 *ImageTitle, IN CHAR8 OSType,
                                     OUT UINTN *ErrorInStep,
                                     IN BOOLEAN Verbose)
@@ -180,50 +257,65 @@ static EFI_STATUS StartEFIImageList(IN EFI_DEVICE_PATH **DevicePaths,
     EFI_STATUS              Status, ReturnStatus;
     EFI_HANDLE              ChildImageHandle;
     EFI_LOADED_IMAGE        *ChildLoadedImage = NULL;
+    REFIT_VOLUME            *Volume = NULL;
     UINTN                   DevicePathIndex;
     CHAR16                  ErrorInfo[256];
     CHAR16                  *FullLoadOptions = NULL;
+    CHAR16                  *Filename = NULL;
+    CHAR16                  *Temp;
 
     if (ErrorInStep != NULL)
         *ErrorInStep = 0;
 
     // set load options
     if (LoadOptions != NULL) {
-        if (LoadOptionsPrefix != NULL) {
-            MergeStrings(&FullLoadOptions, LoadOptions, L' ');
-            if (OSType == 'M') {
-               MergeStrings(&FullLoadOptions, L" ", 0);
-               // NOTE: That last space is also added by the EFI shell and seems to be significant
-               //  when passing options to Apple's boot.efi...
-            } // if
-        } else {
-            MergeStrings(&FullLoadOptions, LoadOptions, 0);
-        } // if/else
-    } else { // LoadOptions == NULL
-       // NOTE: We provide a non-null string when no options are specified for safety;
-       // some systems (at least DUET) can hang when launching some programs (such as
-       // an EFI shell) without this.
-       FullLoadOptions = StrDuplicate(L" ");
-    }
+       FullLoadOptions = StrDuplicate(LoadOptions);
+       if ((LoaderType == TYPE_EFI) && (OSType == 'M')) {
+           MergeStrings(&FullLoadOptions, L" ", 0);
+           // NOTE: That last space is also added by the EFI shell and seems to be significant
+           // when passing options to Apple's boot.efi...
+        } // if
+    } // if (LoadOptions != NULL)
     if (Verbose)
-       Print(L"Starting %s\nUsing load options '%s'\n", ImageTitle, FullLoadOptions);
+       Print(L"Starting %s\nUsing load options '%s'\n", ImageTitle, FullLoadOptions ? FullLoadOptions : L"");
 
     // load the image into memory (and execute it, in the case of a shim/MOK image).
     ReturnStatus = Status = EFI_NOT_FOUND;  // in case the list is empty
     for (DevicePathIndex = 0; DevicePaths[DevicePathIndex] != NULL; DevicePathIndex++) {
-       // NOTE: Below commented-out line could be more efficient if file were read ahead of
-       // time and passed as a pre-loaded image to LoadImage(), but it doesn't work on my
-       // 32-bit Mac Mini or my 64-bit Intel box when launching a Linux kernel; the
-       // kernel returns a "Failed to handle fs_proto" error message.
-       // TODO: Track down the cause of this error and fix it, if possible.
-       // ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex],
-       //                                            ImageData, ImageSize, &ChildImageHandle);
-       ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex],
-                                                   NULL, 0, &ChildImageHandle);
+       FindVolumeAndFilename(DevicePaths[DevicePathIndex], &Volume, &Filename);
+       // Some EFIs crash if attempting to load driver for invalid architecture, so
+       // protect for this condition; but sometimes Volume comes back NULL, so provide
+       // an exception. (TODO: Handle this special condition better.)
+       if ((LoaderType == TYPE_LEGACY) || (Volume == NULL) || IsValidLoader(Volume->RootDir, Filename)) {
+          if (Filename && (LoaderType != TYPE_LEGACY)) {
+             Temp = PoolPrint(L"\\%s %s", Filename, FullLoadOptions ? FullLoadOptions : L"");
+             if (Temp != NULL) {
+                MyFreePool(FullLoadOptions);
+                FullLoadOptions = Temp;
+             }
+          } // if (Filename)
+
+          // NOTE: Below commented-out line could be more efficient if file were read ahead of
+          // time and passed as a pre-loaded image to LoadImage(), but it doesn't work on my
+          // 32-bit Mac Mini or my 64-bit Intel box when launching a Linux kernel; the
+          // kernel returns a "Failed to handle fs_proto" error message.
+          // TODO: Track down the cause of this error and fix it, if possible.
+          // ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex],
+          //                                            ImageData, ImageSize, &ChildImageHandle);
+          ReturnStatus = Status = refit_call6_wrapper(BS->LoadImage, FALSE, SelfImageHandle, DevicePaths[DevicePathIndex],
+                                                      NULL, 0, &ChildImageHandle);
+       } else {
+          Print(L"Invalid loader file!\n");
+          ReturnStatus = EFI_LOAD_ERROR;
+       }
        if (ReturnStatus != EFI_NOT_FOUND) {
           break;
        }
     }
+    if ((Status == EFI_ACCESS_DENIED) || (Status == EFI_SECURITY_VIOLATION)) {
+       WarnSecureBootError(ImageTitle, Verbose);
+       goto bailout;
+    }
     SPrint(ErrorInfo, 255, L"while loading %s", ImageTitle);
     if (CheckError(Status, ErrorInfo)) {
         if (ErrorInStep != NULL)
@@ -239,7 +331,7 @@ static EFI_STATUS StartEFIImageList(IN EFI_DEVICE_PATH **DevicePaths,
        goto bailout_unload;
     }
     ChildLoadedImage->LoadOptions = (VOID *)FullLoadOptions;
-    ChildLoadedImage->LoadOptionsSize = ((UINT32)StrLen(FullLoadOptions) + 1) * sizeof(CHAR16);
+    ChildLoadedImage->LoadOptionsSize = FullLoadOptions ? ((UINT32)StrLen(FullLoadOptions) + 1) * sizeof(CHAR16) : 0;
     // turn control over to the image
     // TODO: (optionally) re-enable the EFI watchdog timer!
 
@@ -267,7 +359,7 @@ bailout:
 } /* static EFI_STATUS StartEFIImageList() */
 
 static EFI_STATUS StartEFIImage(IN EFI_DEVICE_PATH *DevicePath,
-                                IN CHAR16 *LoadOptions, IN CHAR16 *LoadOptionsPrefix,
+                                IN CHAR16 *LoadOptions, IN UINTN LoaderType,
                                 IN CHAR16 *ImageTitle, IN CHAR8 OSType,
                                 OUT UINTN *ErrorInStep,
                                 IN BOOLEAN Verbose)
@@ -276,19 +368,77 @@ static EFI_STATUS StartEFIImage(IN EFI_DEVICE_PATH *DevicePath,
 
     DevicePaths[0] = DevicePath;
     DevicePaths[1] = NULL;
-    return StartEFIImageList(DevicePaths, LoadOptions, LoadOptionsPrefix, ImageTitle, OSType, ErrorInStep, Verbose);
+    return StartEFIImageList(DevicePaths, LoadOptions, LoaderType, ImageTitle, OSType, ErrorInStep, Verbose);
 } /* static EFI_STATUS StartEFIImage() */
 
+// From gummiboot: Retrieve a raw EFI variable.
+// Returns EFI status
+static EFI_STATUS EfivarGetRaw(EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size) {
+   CHAR8 *buf;
+   UINTN l;
+   EFI_STATUS err;
+
+   l = sizeof(CHAR16 *) * EFI_MAXIMUM_VARIABLE_SIZE;
+   buf = AllocatePool(l);
+   if (!buf)
+      return EFI_OUT_OF_RESOURCES;
+
+   err = refit_call5_wrapper(RT->GetVariable, name, vendor, NULL, &l, buf);
+   if (EFI_ERROR(err) == EFI_SUCCESS) {
+      *buffer = buf;
+      if (size)
+         *size = l;
+   } else
+      MyFreePool(buf);
+   return err;
+} // EFI_STATUS EfivarGetRaw()
+
+// From gummiboot: Set an EFI variable
+static EFI_STATUS EfivarSetRaw(EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent) {
+   UINT32 flags;
+
+   flags = EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS;
+   if (persistent)
+      flags |= EFI_VARIABLE_NON_VOLATILE;
+
+   return refit_call5_wrapper(RT->SetVariable, name, vendor, flags, size, buf);
+} // EFI_STATUS EfivarSetRaw()
+
+// From gummiboot: Reboot the computer into its built-in user interface
+static EFI_STATUS RebootIntoFirmware(VOID) {
+   CHAR8 *b;
+   UINTN size;
+   UINT64 osind;
+   EFI_STATUS err;
+
+   osind = EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
+
+   err = EfivarGetRaw(&GlobalGuid, L"OsIndications", &b, &size);
+   if (err == EFI_SUCCESS)
+      osind |= (UINT64)*b;
+   MyFreePool(b);
+
+   err = EfivarSetRaw(&GlobalGuid, L"OsIndications", (CHAR8 *)&osind, sizeof(UINT64), TRUE);
+   if (err != EFI_SUCCESS)
+      return err;
+
+   refit_call4_wrapper(RT->ResetSystem, EfiResetCold, EFI_SUCCESS, 0, NULL);
+   Print(L"Error calling ResetSystem: %r", err);
+   PauseForKey();
+   return err;
+}
+
+
 //
 // EFI OS loader functions
 //
 
-static VOID StartLoader(IN LOADER_ENTRY *Entry)
+static VOID StartLoader(LOADER_ENTRY *Entry)
 {
     UINTN ErrorInStep = 0;
 
     BeginExternalScreen(Entry->UseGraphicsMode, L"Booting OS");
-    StartEFIImage(Entry->DevicePath, Entry->LoadOptions, Basename(Entry->LoaderPath),
+    StartEFIImage(Entry->DevicePath, Entry->LoadOptions, TYPE_EFI,
                   Basename(Entry->LoaderPath), Entry->OSType, &ErrorInStep, !Entry->UseGraphicsMode);
     FinishExternalScreen();
 }
@@ -328,13 +478,11 @@ static CHAR16 * FindInitrd(IN CHAR16 *LoaderPath, IN REFIT_VOLUME *Volume) {
       InitrdVersion = FindNumbers(DirEntry->FileName);
       if (KernelVersion != NULL) {
          if (StriCmp(InitrdVersion, KernelVersion) == 0) {
-            MergeStrings(&InitrdName, Path, 0);
-            MergeStrings(&InitrdName, DirEntry->FileName, 0);
+            InitrdName = PoolPrint(L"%s%s", Path, DirEntry->FileName);
          } // if
       } else {
          if (InitrdVersion == NULL) {
-            MergeStrings(&InitrdName, Path, 0);
-            MergeStrings(&InitrdName, DirEntry->FileName, 0);
+            InitrdName = PoolPrint(L"%s%s", Path, DirEntry->FileName);
          } // if
       } // if/else
       MyFreePool(InitrdVersion);
@@ -618,7 +766,7 @@ VOID GenerateSubScreen(LOADER_ENTRY *Entry, IN REFIT_VOLUME *Volume) {
          } // while
          MyFreePool(InitrdName);
          MyFreePool(File);
-      } // if Linux options file exists
+      } // if
 
    } else if (Entry->OSType == 'E') {   // entries for ELILO
       SubEntry = InitializeLoaderEntry(Entry);
@@ -707,11 +855,39 @@ static CHAR16 * GetMainLinuxOptions(IN CHAR16 * LoaderPath, IN REFIT_VOLUME *Vol
    return (FullOptions);
 } // static CHAR16 * GetMainLinuxOptions()
 
+// Try to guess the name of the Linux distribution & add that name to
+// OSIconName list.
+static VOID GuessLinuxDistribution(CHAR16 **OSIconName, REFIT_VOLUME *Volume, CHAR16 *LoaderPath) {
+   UINTN       FileSize = 0;
+   REFIT_FILE  File;
+   CHAR16**    TokenList;
+   UINTN       TokenCount = 0;
+
+   // If on Linux root fs, /etc/os-release file probably has clues....
+   if (FileExists(Volume->RootDir, L"etc\\os-release") &&
+       (ReadFile(Volume->RootDir, L"etc\\os-release", &File, &FileSize) == EFI_SUCCESS)) {
+      do {
+         TokenCount = ReadTokenLine(&File, &TokenList);
+         if ((TokenCount > 1) && ((StriCmp(TokenList[0], L"ID") == 0) || (StriCmp(TokenList[0], L"NAME") == 0))) {
+            MergeStrings(OSIconName, TokenList[1], L',');
+         } // if
+         FreeTokenLine(&TokenList, &TokenCount);
+      } while (TokenCount > 0);
+      MyFreePool(File.Buffer);
+   } // if
+
+   // Search for clues in the kernel's filename....
+   if (StriSubCmp(L".fc", LoaderPath))
+      MergeStrings(OSIconName, L"fedora", L',');
+   if (StriSubCmp(L".el", LoaderPath))
+      MergeStrings(OSIconName, L"redhat", L',');
+} // VOID GuessLinuxDistribution()
+
 // Sets a few defaults for a loader entry -- mainly the icon, but also the OS type
 // code and shortcut letter. For Linux EFI stub loaders, also sets kernel options
 // that will (with luck) work fairly automatically.
 VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, REFIT_VOLUME *Volume) {
-   CHAR16      *FileName, *PathOnly, *IconNames = NULL, *NoExtension, *OSIconName = NULL, *Temp, *SubString;
+   CHAR16      *FileName, *PathOnly, *NoExtension, *OSIconName = NULL, *Temp, *SubString;
    CHAR16      ShortcutLetter = 0;
    UINTN       i = 0, Length;
 
@@ -721,16 +897,10 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, REFIT_VOLUME *Vo
 
    // locate a custom icon for the loader
    // Anything found here takes precedence over the "hints" in the OSIconName variable
-   while ((Temp = FindCommaDelimited(ICON_EXTENSIONS, i++)) != NULL) {
-      MergeStrings(&IconNames, NoExtension, L',');
-      MergeStrings(&IconNames, Temp, L'.');
-      MyFreePool(Temp);
-   }
    if (!Entry->me.Image)
-      Entry->me.Image = LoadIcns(Volume->RootDir, IconNames, 128);
+      Entry->me.Image = egLoadIconAnyType(Volume->RootDir, PathOnly, NoExtension, 128);
    if (!Entry->me.Image)
-      Entry->me.Image = Volume->VolIconImage;
-   MyFreePool(IconNames);
+      Entry->me.Image = egCopyImage(Volume->VolIconImage);
 
    // Begin creating icon "hints" by using last part of directory path leading
    // to the loader
@@ -763,7 +933,8 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, REFIT_VOLUME *Vo
    } // if
 
    // detect specific loaders
-   if (StriSubCmp(L"bzImage", LoaderPath) || StriSubCmp(L"vmlinuz", LoaderPath)) {
+   if (StriSubCmp(L"bzImage", FileName) || StriSubCmp(L"vmlinuz", FileName)) {
+      GuessLinuxDistribution(&OSIconName, Volume, LoaderPath);
       MergeStrings(&OSIconName, L"linux", L',');
       Entry->OSType = 'L';
       if (ShortcutLetter == 0)
@@ -774,6 +945,10 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, REFIT_VOLUME *Vo
       MergeStrings(&OSIconName, L"refit", L',');
       Entry->OSType = 'R';
       ShortcutLetter = 'R';
+   } else if (StriSubCmp(L"refind", LoaderPath)) {
+      MergeStrings(&OSIconName, L"refind", L',');
+      Entry->OSType = 'R';
+      ShortcutLetter = 'R';
    } else if (StriCmp(LoaderPath, MACOSX_LOADER_PATH) == 0) {
       if (Volume->VolIconImage != NULL) { // custom icon file found
          Entry->me.Image = Volume->VolIconImage;
@@ -796,7 +971,8 @@ VOID SetLoaderDefaults(LOADER_ENTRY *Entry, CHAR16 *LoaderPath, REFIT_VOLUME *Vo
       Entry->UseGraphicsMode = GlobalConfig.GraphicsFor & GRAPHICS_FOR_GRUB;
    } else if (StriCmp(FileName, L"cdboot.efi") == 0 ||
               StriCmp(FileName, L"bootmgr.efi") == 0 ||
-              StriCmp(FileName, L"bootmgfw.efi") == 0) {
+              StriCmp(FileName, L"bootmgfw.efi") == 0 ||
+              StriCmp(FileName, L"bkpbootmgfw.efi") == 0) {
       MergeStrings(&OSIconName, L"win", L',');
       Entry->OSType = 'W';
       ShortcutLetter = 'W';
@@ -827,7 +1003,7 @@ LOADER_ENTRY * AddLoaderEntry(IN CHAR16 *LoaderPath, IN CHAR16 *LoaderTitle, IN
    if (Entry != NULL) {
       Entry->Title = StrDuplicate((LoaderTitle != NULL) ? LoaderTitle : LoaderPath);
       Entry->me.Title = AllocateZeroPool(sizeof(CHAR16) * 256);
-      SPrint(Entry->me.Title, 255, L"Boot %s from %s", (LoaderTitle != NULL) ? LoaderTitle : LoaderPath, Volume->VolName);
+      SPrint(Entry->me.Title, 255, L"Boot %s from %s ", (LoaderTitle != NULL) ? LoaderTitle : LoaderPath, Volume->VolName);
       Entry->me.Row = 0;
       Entry->me.BadgeImage = Volume->VolBadgeImage;
       if ((LoaderPath != NULL) && (LoaderPath[0] != L'\\')) {
@@ -904,48 +1080,160 @@ static VOID CleanUpLoaderList(struct LOADER_LIST *LoaderList) {
 
 // Returns FALSE if the specified file/volume matches the GlobalConfig.DontScanDirs
 // or GlobalConfig.DontScanVolumes specification, or if Path points to a volume
-// other than the one specified by Volume. Returns TRUE if none of these conditions
-// is met -- that is, if the path is eligible for scanning. Also reduces *Path to a
-// path alone, with no volume specification.
+// other than the one specified by Volume, or if the specified path is SelfDir.
+// Returns TRUE if none of these conditions is met -- that is, if the path is
+// eligible for scanning.
 static BOOLEAN ShouldScan(REFIT_VOLUME *Volume, CHAR16 *Path) {
-   CHAR16   *VolName = NULL, *DontScanDir;
-   UINTN    i = 0, VolNum;
+   CHAR16   *VolName = NULL, *DontScanDir, *PathCopy = NULL;
+   UINTN    i = 0;
    BOOLEAN  ScanIt = TRUE;
 
    if (IsIn(Volume->VolName, GlobalConfig.DontScanVolumes))
       return FALSE;
 
+   if ((StriCmp(Path, SelfDirPath) == 0) && (Volume->DeviceHandle == SelfVolume->DeviceHandle))
+      return FALSE;
+
+   // See if Path includes an explicit volume declaration that's NOT Volume....
+   PathCopy = StrDuplicate(Path);
+   if (SplitVolumeAndFilename(&PathCopy, &VolName)) {
+      VolumeNumberToName(Volume, &VolName);
+      if (VolName && StriCmp(VolName, Volume->VolName) != 0) {
+         ScanIt = FALSE;
+      } // if
+   } // if Path includes volume specification
+   MyFreePool(PathCopy);
+   MyFreePool(VolName);
+   VolName = NULL;
+
+   // See if Volume is in GlobalConfig.DontScanDirs....
    while ((DontScanDir = FindCommaDelimited(GlobalConfig.DontScanDirs, i++)) && ScanIt) {
       SplitVolumeAndFilename(&DontScanDir, &VolName);
       CleanUpPathNameSlashes(DontScanDir);
+      VolumeNumberToName(Volume, &VolName);
       if (VolName != NULL) {
          if ((StriCmp(VolName, Volume->VolName) == 0) && (StriCmp(DontScanDir, Path) == 0))
             ScanIt = FALSE;
-         if ((StrLen(VolName) > 2) && (VolName[0] == L'f') && (VolName[1] == L's') && (VolName[2] >= L'0') && (VolName[2] <= L'9')) {
-            VolNum = Atoi(VolName + 2);
-            if ((VolNum == Volume->VolNumber) && (StriCmp(DontScanDir, Path) == 0))
-               ScanIt = FALSE;
-         }
       } else {
          if (StriCmp(DontScanDir, Path) == 0)
             ScanIt = FALSE;
       }
       MyFreePool(DontScanDir);
+      MyFreePool(VolName);
       DontScanDir = NULL;
-   }
+   } // while()
+
    return ScanIt;
 } // BOOLEAN ShouldScan()
 
+// Returns TRUE if the file is byte-for-byte identical with the fallback file
+// on the volume AND if the file is not itself the fallback file; returns
+// FALSE if the file is not identical to the fallback file OR if the file
+// IS the fallback file. Intended for use in excluding the fallback boot
+// loader when it's a duplicate of another boot loader.
+static BOOLEAN DuplicatesFallback(IN REFIT_VOLUME *Volume, IN CHAR16 *FileName) {
+   CHAR8           *FileContents, *FallbackContents;
+   EFI_FILE_HANDLE FileHandle, FallbackHandle;
+   EFI_FILE_INFO   *FileInfo, *FallbackInfo;
+   UINTN           FileSize = 0, FallbackSize = 0;
+   EFI_STATUS      Status;
+   BOOLEAN         AreIdentical = FALSE;
+
+   if (!FileExists(Volume->RootDir, FileName) || !FileExists(Volume->RootDir, FALLBACK_FULLNAME))
+      return FALSE;
+
+   CleanUpPathNameSlashes(FileName);
+
+   if (StriCmp(FileName, FALLBACK_FULLNAME) == 0)
+      return FALSE; // identical filenames, so not a duplicate....
+
+   Status = refit_call5_wrapper(Volume->RootDir->Open, Volume->RootDir, &FileHandle, FileName, EFI_FILE_MODE_READ, 0);
+   if (Status == EFI_SUCCESS) {
+      FileInfo = LibFileInfo(FileHandle);
+      FileSize = FileInfo->FileSize;
+   } else {
+      return FALSE;
+   }
+
+   Status = refit_call5_wrapper(Volume->RootDir->Open, Volume->RootDir, &FallbackHandle, FALLBACK_FULLNAME, EFI_FILE_MODE_READ, 0);
+   if (Status == EFI_SUCCESS) {
+      FallbackInfo = LibFileInfo(FallbackHandle);
+      FallbackSize = FallbackInfo->FileSize;
+   } else {
+      refit_call1_wrapper(FileHandle->Close, FileHandle);
+      return FALSE;
+   }
+
+   if (FallbackSize != FileSize) { // not same size, so can't be identical
+      AreIdentical = FALSE;
+   } else { // could be identical; do full check....
+      FileContents = AllocatePool(FileSize);
+      FallbackContents = AllocatePool(FallbackSize);
+      if (FileContents && FallbackContents) {
+         Status = refit_call3_wrapper(FileHandle->Read, FileHandle, &FileSize, FileContents);
+         if (Status == EFI_SUCCESS) {
+            Status = refit_call3_wrapper(FallbackHandle->Read, FallbackHandle, &FallbackSize, FallbackContents);
+         }
+         if (Status == EFI_SUCCESS) {
+            AreIdentical = (CompareMem(FileContents, FallbackContents, FileSize) == 0);
+         } // if
+      } // if
+      MyFreePool(FileContents);
+      MyFreePool(FallbackContents);
+   } // if/else
+
+   // BUG ALERT: Some systems (e.g., DUET, some Macs with large displays) crash if the
+   // following two calls are reversed. Go figure....
+   refit_call1_wrapper(FileHandle->Close, FallbackHandle);
+   refit_call1_wrapper(FileHandle->Close, FileHandle);
+   return AreIdentical;
+} // BOOLEAN DuplicatesFallback()
+
+// Returns FALSE if two measures of file size are identical for a single file,
+// TRUE if not or if the file can't be opened and the other measure is non-0.
+// Despite the function's name, this isn't really a direct test of symbolic
+// link status, since EFI doesn't officially support symlinks. It does seem
+// to be a reliable indicator, though. (OTOH, some disk errors might cause a
+// file to fail to open, which would return a false positive -- but as I use
+// this function to exclude symbolic links from the list of boot loaders,
+// that would be fine, since such boot loaders wouldn't work.)
+static BOOLEAN IsSymbolicLink(REFIT_VOLUME *Volume, CHAR16 *Path, EFI_FILE_INFO *DirEntry) {
+   EFI_FILE_HANDLE FileHandle;
+   EFI_FILE_INFO   *FileInfo = NULL;
+   EFI_STATUS      Status;
+   UINTN           FileSize2 = 0;
+   CHAR16          *FileName;
+
+   FileName = StrDuplicate(Path);
+   MergeStrings(&FileName, DirEntry->FileName, L'\\');
+   CleanUpPathNameSlashes(FileName);
+
+   Status = refit_call5_wrapper(Volume->RootDir->Open, Volume->RootDir, &FileHandle, FileName, EFI_FILE_MODE_READ, 0);
+   if (Status == EFI_SUCCESS) {
+      FileInfo = LibFileInfo(FileHandle);
+      if (FileInfo != NULL)
+         FileSize2 = FileInfo->FileSize;
+   }
+
+   MyFreePool(FileName);
+   MyFreePool(FileInfo);
+
+   return (DirEntry->FileSize != FileSize2);
+} // BOOLEAN IsSymbolicLink()
+
 // Scan an individual directory for EFI boot loader files and, if found,
-// add them to the list. Sorts the entries within the loader directory
-// so that the most recent one appears first in the list.
-static VOID ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *Pattern)
+// add them to the list. Exception: Ignores FALLBACK_FULLNAME, which is picked
+// up in ScanEfiFiles(). Sorts the entries within the loader directory so that
+// the most recent one appears first in the list.
+// Returns TRUE if a duplicate for FALLBACK_FILENAME was found, FALSE if not.
+static BOOLEAN ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *Pattern)
 {
     EFI_STATUS              Status;
     REFIT_DIR_ITER          DirIter;
     EFI_FILE_INFO           *DirEntry;
     CHAR16                  FileName[256], *Extension;
     struct LOADER_LIST      *LoaderList = NULL, *NewLoader;
+    BOOLEAN                 FoundFallbackDuplicate = FALSE;
 
     if ((!SelfDirPath || !Path || ((StriCmp(Path, SelfDirPath) == 0) && (Volume->DeviceHandle != SelfVolume->DeviceHandle)) ||
            (StriCmp(Path, SelfDirPath) != 0)) &&
@@ -957,8 +1245,10 @@ static VOID ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *P
           if (DirEntry->FileName[0] == '.' ||
               StriCmp(Extension, L".icns") == 0 ||
               StriCmp(Extension, L".png") == 0 ||
+              (StriCmp(DirEntry->FileName, FALLBACK_BASENAME) == 0 && (StriCmp(Path, L"EFI\\BOOT") == 0)) ||
               StriSubCmp(L"shell", DirEntry->FileName) ||
-              IsIn(DirEntry->FileName, GlobalConfig.DontScanFiles))
+              IsSymbolicLink(Volume, Path, DirEntry) || /* is symbolic link */
+              FilenameIn(Volume, Path, DirEntry->FileName, GlobalConfig.DontScanFiles))
                 continue;   // skip this
 
           if (Path)
@@ -966,74 +1256,109 @@ static VOID ScanLoaderDir(IN REFIT_VOLUME *Volume, IN CHAR16 *Path, IN CHAR16 *P
           else
              SPrint(FileName, 255, L"\\%s", DirEntry->FileName);
           CleanUpPathNameSlashes(FileName);
+
+          if(!IsValidLoader(Volume->RootDir, FileName))
+             continue;
+
           NewLoader = AllocateZeroPool(sizeof(struct LOADER_LIST));
           if (NewLoader != NULL) {
              NewLoader->FileName = StrDuplicate(FileName);
              NewLoader->TimeStamp = DirEntry->ModificationTime;
              LoaderList = AddLoaderListEntry(LoaderList, NewLoader);
+             if (DuplicatesFallback(Volume, FileName))
+                FoundFallbackDuplicate = TRUE;
           } // if
           MyFreePool(Extension);
        } // while
+
        NewLoader = LoaderList;
        while (NewLoader != NULL) {
           AddLoaderEntry(NewLoader->FileName, NULL, Volume);
           NewLoader = NewLoader->NextEntry;
        } // while
+
        CleanUpLoaderList(LoaderList);
        Status = DirIterClose(&DirIter);
-       if (Status != EFI_NOT_FOUND) {
+       // NOTE: EFI_INVALID_PARAMETER really is an error that should be reported;
+       // but I've gotten reports from users who are getting this error occasionally
+       // and I can't find anything wrong or reproduce the problem, so I'm putting
+       // it down to buggy EFI implementations and ignoring that particular error....
+       if ((Status != EFI_NOT_FOUND) && (Status != EFI_INVALID_PARAMETER)) {
           if (Path)
              SPrint(FileName, 255, L"while scanning the %s directory", Path);
           else
              StrCpy(FileName, L"while scanning the root directory");
           CheckError(Status, FileName);
        } // if (Status != EFI_NOT_FOUND)
-    } // if not scanning our own directory
+    } // if not scanning a blacklisted directory
+
+    return FoundFallbackDuplicate;
 } /* static VOID ScanLoaderDir() */
 
 static VOID ScanEfiFiles(REFIT_VOLUME *Volume) {
    EFI_STATUS              Status;
    REFIT_DIR_ITER          EfiDirIter;
    EFI_FILE_INFO           *EfiDirEntry;
-   CHAR16                  FileName[256], *Directory, *MatchPatterns, *VolName = NULL;
-   UINTN                   i, Length, VolNum;
+   CHAR16                  FileName[256], *Directory = NULL, *MatchPatterns, *VolName = NULL, *SelfPath;
+   UINTN                   i, Length;
+   BOOLEAN                 ScanFallbackLoader = TRUE;
+   BOOLEAN                 FoundBRBackup = FALSE;
 
    MatchPatterns = StrDuplicate(LOADER_MATCH_PATTERNS);
    if (GlobalConfig.ScanAllLinux)
       MergeStrings(&MatchPatterns, LINUX_MATCH_PATTERNS, L',');
 
-   if ((Volume->RootDir != NULL) && (Volume->VolName != NULL)) {
+   if ((Volume->RootDir != NULL) && (Volume->VolName != NULL) && (Volume->IsReadable)) {
       // check for Mac OS X boot loader
-      if (!IsIn(L"System\\Library\\CoreServices", GlobalConfig.DontScanDirs)) {
+      if (ShouldScan(Volume, L"System\\Library\\CoreServices")) {
          StrCpy(FileName, MACOSX_LOADER_PATH);
-         if (FileExists(Volume->RootDir, FileName) && !IsIn(L"boot.efi", GlobalConfig.DontScanFiles)) {
+         if (FileExists(Volume->RootDir, FileName) && !FilenameIn(Volume, Directory, L"boot.efi", GlobalConfig.DontScanFiles)) {
             AddLoaderEntry(FileName, L"Mac OS X", Volume);
+            if (DuplicatesFallback(Volume, FileName))
+               ScanFallbackLoader = FALSE;
          }
 
          // check for XOM
          StrCpy(FileName, L"System\\Library\\CoreServices\\xom.efi");
-         if (FileExists(Volume->RootDir, FileName) && !IsIn(L"boot.efi", GlobalConfig.DontScanFiles)) {
+         if (FileExists(Volume->RootDir, FileName) && !FilenameIn(Volume, Directory, L"boot.efi", GlobalConfig.DontScanFiles)) {
             AddLoaderEntry(FileName, L"Windows XP (XoM)", Volume);
+            if (DuplicatesFallback(Volume, FileName))
+               ScanFallbackLoader = FALSE;
          }
-      } // if Mac directory not in GlobalConfig.DontScanDirs list
+      } // if should scan Mac directory
 
       // check for Microsoft boot loader/menu
-      StrCpy(FileName, L"EFI\\Microsoft\\Boot\\Bootmgfw.efi");
-      if (FileExists(Volume->RootDir, FileName) && !IsIn(L"EFI\\Microsoft\\Boot", GlobalConfig.DontScanDirs) &&
-          !IsIn(L"bootmgfw.efi", GlobalConfig.DontScanFiles)) {
-         AddLoaderEntry(FileName, L"Microsoft EFI boot", Volume);
-      }
+      if (ShouldScan(Volume, L"EFI\\Microsoft\\Boot")) {
+         StrCpy(FileName, L"EFI\\Microsoft\\Boot\\bkpbootmgfw.efi");
+         if (FileExists(Volume->RootDir, FileName) &&  !FilenameIn(Volume, Directory, L"bkpbootmgfw.efi", GlobalConfig.DontScanFiles)) {
+            AddLoaderEntry(FileName, L"Microsoft EFI boot (Boot Repair backup)", Volume);
+            FoundBRBackup = TRUE;
+            if (DuplicatesFallback(Volume, FileName))
+               ScanFallbackLoader = FALSE;
+         }
+         StrCpy(FileName, L"EFI\\Microsoft\\Boot\\bootmgfw.efi");
+         if (FileExists(Volume->RootDir, FileName) &&  !FilenameIn(Volume, Directory, L"bootmgfw.efi", GlobalConfig.DontScanFiles)) {
+            if (FoundBRBackup)
+               AddLoaderEntry(FileName, L"Supposed Microsoft EFI boot (probably GRUB)", Volume);
+            else
+               AddLoaderEntry(FileName, L"Microsoft EFI boot", Volume);
+            if (DuplicatesFallback(Volume, FileName))
+               ScanFallbackLoader = FALSE;
+         }
+      } // if
 
       // scan the root directory for EFI executables
-      ScanLoaderDir(Volume, L"\\", MatchPatterns);
+      if (ScanLoaderDir(Volume, L"\\", MatchPatterns))
+         ScanFallbackLoader = FALSE;
 
       // scan subdirectories of the EFI directory (as per the standard)
       DirIterOpen(Volume->RootDir, L"EFI", &EfiDirIter);
       while (DirIterNext(&EfiDirIter, 1, NULL, &EfiDirEntry)) {
          if (StriCmp(EfiDirEntry->FileName, L"tools") == 0 || EfiDirEntry->FileName[0] == '.')
-            continue;   // skip this, doesn't contain boot loaders
+            continue;   // skip this, doesn't contain boot loaders or is scanned later
          SPrint(FileName, 255, L"EFI\\%s", EfiDirEntry->FileName);
-         ScanLoaderDir(Volume, FileName, MatchPatterns);
+         if (ScanLoaderDir(Volume, FileName, MatchPatterns))
+            ScanFallbackLoader = FALSE;
       } // while()
       Status = DirIterClose(&EfiDirIter);
       if (Status != EFI_NOT_FOUND)
@@ -1042,18 +1367,27 @@ static VOID ScanEfiFiles(REFIT_VOLUME *Volume) {
       // Scan user-specified (or additional default) directories....
       i = 0;
       while ((Directory = FindCommaDelimited(GlobalConfig.AlsoScan, i++)) != NULL) {
-         VolNum = VOL_DONTSCAN;
-         SplitVolumeAndFilename(&Directory, &VolName);
-         CleanUpPathNameSlashes(Directory);
-         Length = StrLen(Directory);
-         if (VolName && (Length > 0) && (StrLen(VolName) > 2) && (VolName[0] == L'f') && (VolName[1] == L's') &&
-             (VolName[2] >= L'0') && (VolName[2] <= L'9'))
-            VolNum = Atoi(VolName + 2);
-         if ((Length > 0) && ((VolName == NULL) || (StriCmp(VolName, Volume->VolName) == 0) || (Volume->VolNumber == VolNum)))
-            ScanLoaderDir(Volume, Directory, MatchPatterns);
+         if (ShouldScan(Volume, Directory)) {
+            SplitVolumeAndFilename(&Directory, &VolName);
+            CleanUpPathNameSlashes(Directory);
+            Length = StrLen(Directory);
+            if ((Length > 0) && ScanLoaderDir(Volume, Directory, MatchPatterns))
+               ScanFallbackLoader = FALSE;
+            MyFreePool(VolName);
+         } // if should scan dir
          MyFreePool(Directory);
-         MyFreePool(VolName);
       } // while
+
+      // Don't scan the fallback loader if it's on the same volume and a duplicate of rEFInd itself....
+      SelfPath = DevicePathToStr(SelfLoadedImage->FilePath);
+      CleanUpPathNameSlashes(SelfPath);
+      if ((Volume->DeviceHandle == SelfLoadedImage->DeviceHandle) && DuplicatesFallback(Volume, SelfPath))
+         ScanFallbackLoader = FALSE;
+
+      // If not a duplicate & if it exists & if it's not us, create an entry
+      // for the fallback boot loader
+      if (ScanFallbackLoader && FileExists(Volume->RootDir, FALLBACK_FULLNAME) && ShouldScan(Volume, L"EFI\\BOOT"))
+         AddLoaderEntry(FALLBACK_FULLNAME, L"Fallback boot loader", Volume);
    } // if
 } // static VOID ScanEfiFiles()
 
@@ -1270,7 +1604,7 @@ static VOID StartLegacy(IN LEGACY_ENTRY *Entry)
 
     ExtractLegacyLoaderPaths(DiscoveredPathList, MAX_DISCOVERED_PATHS, LegacyLoaderList);
 
-    Status = StartEFIImageList(DiscoveredPathList, Entry->LoadOptions, NULL, L"legacy loader", 0, &ErrorInStep, TRUE);
+    Status = StartEFIImageList(DiscoveredPathList, Entry->LoadOptions, TYPE_LEGACY, L"legacy loader", 0, &ErrorInStep, TRUE);
     if (Status == EFI_NOT_FOUND) {
         if (ErrorInStep == 1) {
             Print(L"\nPlease make sure that you have the latest firmware update installed.\n");
@@ -1284,10 +1618,18 @@ static VOID StartLegacy(IN LEGACY_ENTRY *Entry)
 
 // Start a device on a non-Mac using the EFI_LEGACY_BIOS_PROTOCOL
 #ifdef __MAKEWITH_TIANO
-static VOID StartLegacyUEFI(IN LEGACY_ENTRY *Entry)
+static VOID StartLegacyUEFI(LEGACY_ENTRY *Entry)
 {
+//     UINTN ExitDataSize = 0;
+//     CHAR16 *ExitData = NULL;
+//     EFI_STATUS Status;
+
     BeginExternalScreen(TRUE, L"Booting Legacy OS (UEFI mode)");
+//    Print(L"Launching from '%s'\n", DevicePathToStr(Entry->BdsOption->DevicePath));
+//    PauseForKey();
 
+//    Status = BdsLibBootViaBootOption(Entry->BdsOption, Entry->BdsOption->DevicePath, &ExitDataSize, &ExitData);
+//    Print(L"BdsLibBootViaBootOption() returned %d\n", Status);
     BdsLibConnectDevicePath (Entry->BdsOption->DevicePath);
     BdsLibDoLegacyBoot(Entry->BdsOption);
 
@@ -1391,8 +1733,6 @@ static LEGACY_ENTRY * AddLegacyEntryUEFI(BDS_COMMON_OPTION *BdsOption, IN UINT16
     CHAR16                  ShortcutLetter = 0;
     CHAR16 *LegacyDescription = BdsOption->Description;
 
-//    ScanVolume(Volume);
-
     // prepare the menu entry
     Entry = AllocateZeroPool(sizeof(LEGACY_ENTRY));
     Entry->me.Title = AllocateZeroPool(256 * sizeof(CHAR16));
@@ -1404,7 +1744,6 @@ static LEGACY_ENTRY * AddLegacyEntryUEFI(BDS_COMMON_OPTION *BdsOption, IN UINT16
     Entry->LoadOptions     = (DiskType == BBS_CDROM) ? L"CD" :
                              ((DiskType == BBS_USB) ? L"USB" : L"HD");
     Entry->me.BadgeImage   = GetDiskBadge(DiskType);
-//    Entry->me.BadgeImage   = Volume->VolBadgeImage;
     Entry->BdsOption       = BdsOption;
     Entry->Enabled         = TRUE;
 
@@ -1514,7 +1853,7 @@ static VOID ScanLegacyVolume(REFIT_VOLUME *Volume, UINTN VolumeIndex) {
       // check for other bootable entries on the same disk
       for (VolumeIndex2 = 0; VolumeIndex2 < VolumesCount; VolumeIndex2++) {
          if (VolumeIndex2 != VolumeIndex && Volumes[VolumeIndex2]->HasBootCode &&
-            Volumes[VolumeIndex2]->WholeDiskBlockIO == Volume->WholeDiskBlockIO)
+             Volumes[VolumeIndex2]->WholeDiskBlockIO == Volume->WholeDiskBlockIO)
             ShowVolume = FALSE;
       }
    }
@@ -1584,7 +1923,7 @@ static VOID ScanLegacyExternal(VOID)
 static VOID StartTool(IN LOADER_ENTRY *Entry)
 {
    BeginExternalScreen(Entry->UseGraphicsMode, Entry->me.Title + 6);  // assumes "Start <title>" as assigned below
-   StartEFIImage(Entry->DevicePath, Entry->LoadOptions, Basename(Entry->LoaderPath),
+   StartEFIImage(Entry->DevicePath, Entry->LoadOptions, TYPE_EFI,
                  Basename(Entry->LoaderPath), Entry->OSType, NULL, TRUE);
    FinishExternalScreen();
 } /* static VOID StartTool() */
@@ -1597,8 +1936,7 @@ static LOADER_ENTRY * AddToolEntry(EFI_HANDLE DeviceHandle, IN CHAR16 *LoaderPat
 
     Entry = AllocateZeroPool(sizeof(LOADER_ENTRY));
 
-    MergeStrings(&TitleStr, L"Start ", 0);
-    MergeStrings(&TitleStr, LoaderTitle, 0);
+    TitleStr = PoolPrint(L"Start %s", LoaderTitle);
     Entry->me.Title = TitleStr;
     Entry->me.Tag = TAG_TOOL;
     Entry->me.Row = 1;
@@ -1634,7 +1972,7 @@ static UINTN ScanDriverDir(IN CHAR16 *Path)
         SPrint(FileName, 255, L"%s\\%s", Path, DirEntry->FileName);
         NumFound++;
         Status = StartEFIImage(FileDevicePath(SelfLoadedImage->DeviceHandle, FileName),
-                               L"", DirEntry->FileName, DirEntry->FileName, 0, NULL, FALSE);
+                               L"", TYPE_EFI, DirEntry->FileName, 0, NULL, FALSE);
     }
     Status = DirIterClose(&DirIter);
     if (Status != EFI_NOT_FOUND) {
@@ -1811,7 +2149,18 @@ static VOID WarnIfLegacyProblems() {
 
 // Locates boot loaders. NOTE: This assumes that GlobalConfig.LegacyType is set correctly.
 static VOID ScanForBootloaders(VOID) {
-   UINTN                     i;
+   UINTN  i;
+
+//    if (GlobalConfig.LegacyType == LEGACY_TYPE_UEFI) {
+//       Print(L"About to call BdsDeleteAllInvalidLegacyBootOptions()\n");
+//       BdsDeleteAllInvalidLegacyBootOptions();
+//       Print(L"About to call BdsAddNonExistingLegacyBootOptions()\n");
+//       BdsAddNonExistingLegacyBootOptions();
+//       Print(L"About to call BdsUpdateLegacyDevOrder()\n");
+// //      BdsUpdateLegacyDevOrder(); // EXTREME CAUTION: HOSED ONE FIRMWARE!
+//       Print(L"Done with legacy boot updates!\n");
+//       PauseForKey();
+//    }
 
    ScanVolumes();
 
@@ -1828,7 +2177,7 @@ static VOID ScanForBootloaders(VOID) {
             ScanLegacyExternal();
             break;
          case 'm': case 'M':
-            ScanUserConfigured(CONFIG_FILE_NAME);
+            ScanUserConfigured(GlobalConfig.ConfigFilename);
             break;
          case 'e': case 'E':
             ScanExternal();
@@ -1850,87 +2199,145 @@ static VOID ScanForBootloaders(VOID) {
    FinishTextScreen(FALSE);
 } // static VOID ScanForBootloaders()
 
+// Locate a single tool from the specified Locations using one of the
+// specified Names and add it to the menu.
+static VOID FindTool(CHAR16 *Locations, CHAR16 *Names, CHAR16 *Description, UINTN Icon) {
+   UINTN j = 0, k, VolumeIndex;
+   CHAR16 *DirName, *FileName, *PathName, FullDescription[256];
+
+   while ((DirName = FindCommaDelimited(Locations, j++)) != NULL) {
+      k = 0;
+      while ((FileName = FindCommaDelimited(Names, k++)) != NULL) {
+         PathName = StrDuplicate(DirName);
+         MergeStrings(&PathName, FileName, (StriCmp(PathName, L"\\") == 0) ? 0 : L'\\');
+         for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
+            if ((Volumes[VolumeIndex]->RootDir != NULL) && (FileExists(Volumes[VolumeIndex]->RootDir, PathName))) {
+               SPrint(FullDescription, 255, L"%s at %s on %s", Description, PathName, Volumes[VolumeIndex]->VolName);
+               AddToolEntry(Volumes[VolumeIndex]->DeviceHandle, PathName, FullDescription, BuiltinIcon(Icon), 'S', FALSE);
+            } // if
+         } // for
+         MyFreePool(PathName);
+         MyFreePool(FileName);
+      } // while Names
+      MyFreePool(DirName);
+   } // while Locations
+} // VOID FindTool()
+
 // Add the second-row tags containing built-in and external tools (EFI shell,
 // reboot, etc.)
 static VOID ScanForTools(VOID) {
-   CHAR16 *FileName = NULL, Description[256];
+   CHAR16 *FileName = NULL, *VolName = NULL, *MokLocations, Description[256];
    REFIT_MENU_ENTRY *TempMenuEntry;
    UINTN i, j, VolumeIndex;
+   UINT64 osind;
+   CHAR8 *b = 0;
+
+   MokLocations = StrDuplicate(MOK_LOCATIONS);
+   if (MokLocations != NULL)
+      MergeStrings(&MokLocations, SelfDirPath, L',');
 
    for (i = 0; i < NUM_TOOLS; i++) {
       switch(GlobalConfig.ShowTools[i]) {
+         // NOTE: Be sure that FileName is NULL at the end of each case.
          case TAG_SHUTDOWN:
             TempMenuEntry = CopyMenuEntry(&MenuEntryShutdown);
             TempMenuEntry->Image = BuiltinIcon(BUILTIN_ICON_FUNC_SHUTDOWN);
             AddMenuEntry(&MainMenu, TempMenuEntry);
             break;
+
          case TAG_REBOOT:
             TempMenuEntry = CopyMenuEntry(&MenuEntryReset);
             TempMenuEntry->Image = BuiltinIcon(BUILTIN_ICON_FUNC_RESET);
             AddMenuEntry(&MainMenu, TempMenuEntry);
             break;
+
          case TAG_ABOUT:
             TempMenuEntry = CopyMenuEntry(&MenuEntryAbout);
             TempMenuEntry->Image = BuiltinIcon(BUILTIN_ICON_FUNC_ABOUT);
             AddMenuEntry(&MainMenu, TempMenuEntry);
             break;
+
          case TAG_EXIT:
             TempMenuEntry = CopyMenuEntry(&MenuEntryExit);
             TempMenuEntry->Image = BuiltinIcon(BUILTIN_ICON_FUNC_EXIT);
             AddMenuEntry(&MainMenu, TempMenuEntry);
             break;
+
+         case TAG_FIRMWARE:
+            if (EfivarGetRaw(&GlobalGuid, L"OsIndicationsSupported", &b, &j) == EFI_SUCCESS) {
+               osind = (UINT64)*b;
+               if (osind & EFI_OS_INDICATIONS_BOOT_TO_FW_UI) {
+                  TempMenuEntry = CopyMenuEntry(&MenuEntryFirmware);
+                  TempMenuEntry->Image = BuiltinIcon(BUILTIN_ICON_FUNC_FIRMWARE);
+                  AddMenuEntry(&MainMenu, TempMenuEntry);
+               } // if
+            } // if
+            break;
+
          case TAG_SHELL:
             j = 0;
-            MyFreePool(FileName);
             while ((FileName = FindCommaDelimited(SHELL_NAMES, j++)) != NULL) {
                if (FileExists(SelfRootDir, FileName)) {
                   AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, L"EFI Shell", BuiltinIcon(BUILTIN_ICON_TOOL_SHELL),
                                'S', FALSE);
                }
+               MyFreePool(FileName);
             } // while
             break;
+
          case TAG_GPTSYNC:
-            MyFreePool(FileName);
-            FileName = StrDuplicate(L"\\efi\\tools\\gptsync.efi");
-//            MergeStrings(&FileName, L"\\efi\\tools\\gptsync.efi", 0);
-            if (FileExists(SelfRootDir, FileName)) {
-               AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, L"Make Hybrid MBR", BuiltinIcon(BUILTIN_ICON_TOOL_PART), 'P', FALSE);
-            }
+            j = 0;
+            while ((FileName = FindCommaDelimited(GPTSYNC_NAMES, j++)) != NULL) {
+               if (FileExists(SelfRootDir, FileName)) {
+                  AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, L"Hybrid MBR tool", BuiltinIcon(BUILTIN_ICON_TOOL_PART),
+                               'P', FALSE);
+               } // if
+               MyFreePool(FileName);
+            } // while
+            FileName = NULL;
             break;
+
          case TAG_APPLE_RECOVERY:
-            MyFreePool(FileName);
             FileName = StrDuplicate(L"\\com.apple.recovery.boot\\boot.efi");
-//            MergeStrings(&FileName, L"\\com.apple.recovery.boot\\boot.efi", 0);
             for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
                if ((Volumes[VolumeIndex]->RootDir != NULL) && (FileExists(Volumes[VolumeIndex]->RootDir, FileName))) {
                   SPrint(Description, 255, L"Apple Recovery on %s", Volumes[VolumeIndex]->VolName);
                   AddToolEntry(Volumes[VolumeIndex]->DeviceHandle, FileName, Description,
                                BuiltinIcon(BUILTIN_ICON_TOOL_APPLE_RESCUE), 'R', TRUE);
-               }
+               } // if
             } // for
+            MyFreePool(FileName);
+            FileName = NULL;
             break;
-         case TAG_MOK_TOOL:
+
+         case TAG_WINDOWS_RECOVERY:
             j = 0;
-            MyFreePool(FileName);
-            while ((FileName = FindCommaDelimited(MOK_NAMES, j++)) != NULL) {
-               if (FileExists(SelfRootDir, FileName)) {
-                  SPrint(Description, 255, L"MOK Key Manager at %s", FileName);
-                  AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, Description,
-                               BuiltinIcon(BUILTIN_ICON_TOOL_MOK_TOOL), 'S', FALSE);
-               }
+            while ((FileName = FindCommaDelimited(GlobalConfig.WindowsRecoveryFiles, j++)) != NULL) {
+               SplitVolumeAndFilename(&FileName, &VolName);
+               for (VolumeIndex = 0; VolumeIndex < VolumesCount; VolumeIndex++) {
+                  if ((Volumes[VolumeIndex]->RootDir != NULL) && (FileExists(Volumes[VolumeIndex]->RootDir, FileName)) &&
+                      ((VolName == NULL) || (StriCmp(VolName, Volumes[VolumeIndex]->VolName) == 0))) {
+                     SPrint(Description, 255, L"Microsoft Recovery on %s", Volumes[VolumeIndex]->VolName);
+                     AddToolEntry(Volumes[VolumeIndex]->DeviceHandle, FileName, Description,
+                                  BuiltinIcon(BUILTIN_ICON_TOOL_WINDOWS_RESCUE), 'R', TRUE);
+                  } // if
+               } // for
             } // while
-            if (FileExists(SelfDir, L"MokManager.efi")) {
-               MyFreePool(FileName);
-               FileName = SelfDirPath ? StrDuplicate(SelfDirPath) : NULL;
-               MergeStrings(&FileName, L"\\MokManager.efi", 0);
-               SPrint(Description, 255, L"MOK Key Manager at %s", FileName);
-               AddToolEntry(SelfLoadedImage->DeviceHandle, FileName, Description,
-                            BuiltinIcon(BUILTIN_ICON_TOOL_MOK_TOOL), 'S', FALSE);
-            }
+            MyFreePool(FileName);
+            FileName = NULL;
+            MyFreePool(VolName);
+            VolName = NULL;
             break;
+
+         case TAG_MOK_TOOL:
+            FindTool(MokLocations, MOK_NAMES, L"MOK utility utility", BUILTIN_ICON_TOOL_MOK_TOOL);
+            break;
+
+         case TAG_MEMTEST:
+            FindTool(MEMTEST_LOCATIONS, MEMTEST_NAMES, L"Memory test utility", BUILTIN_ICON_TOOL_MEMTEST);
+            break;
+
       } // switch()
-      MyFreePool(FileName);
-      FileName = NULL;
    } // for
 } // static VOID ScanForTools
 
@@ -1946,7 +2353,7 @@ VOID RescanAll(VOID) {
    FreeList((VOID ***) &(MainMenu.Entries), &MainMenu.EntryCount);
    MainMenu.Entries = NULL;
    MainMenu.EntryCount = 0;
-   ReadConfig(CONFIG_FILE_NAME);
+   ReadConfig(GlobalConfig.ConfigFilename);
    ConnectAllDriversToAllControllers();
    ScanVolumes();
    ScanForBootloaders();
@@ -2006,6 +2413,37 @@ static BOOLEAN SecureBootUninstall(VOID) {
    return Success;
 } // VOID SecureBootUninstall
 
+// Sets the global configuration filename; will be CONFIG_FILE_NAME unless the
+// "-c" command-line option is set, in which case that takes precedence.
+// If an error is encountered, leaves the value alone (it should be set to
+// CONFIG_FILE_NAME when GlobalConfig is initialized).
+static VOID SetConfigFilename(EFI_HANDLE ImageHandle) {
+   EFI_LOADED_IMAGE *Info;
+   CHAR16 *Options, *FileName;
+   EFI_STATUS Status;
+   INTN Where;
+
+   Status = uefi_call_wrapper(BS->HandleProtocol, 3, ImageHandle,
+                              &LoadedImageProtocol, (VOID **) &Info);
+   if ((Status == EFI_SUCCESS) && (Info->LoadOptionsSize > 0)) {
+      Options = (CHAR16 *) Info->LoadOptions;
+      Where = FindSubString(L" -c ", Options);
+      if (Where >= 0) {
+         FileName = StrDuplicate(&Options[Where + 4]);
+         Where = FindSubString(L" ", FileName);
+         if (Where > 0)
+            FileName[Where] = L'\0';
+
+         if (FileExists(SelfDir, FileName)) {
+            GlobalConfig.ConfigFilename = FileName;
+         } else {
+            Print(L"Specified configuration file (%s) doesn't exist; using\n'refind.conf' default\n", FileName);
+            MyFreePool(FileName);
+         } // if/else
+      } // if
+   } // if
+} // VOID SetConfigFilename()
+
 //
 // main entry point
 //
@@ -2032,8 +2470,9 @@ efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
     FindLegacyBootType();
     if (GlobalConfig.LegacyType == LEGACY_TYPE_MAC)
        CopyMem(GlobalConfig.ScanFor, "ihebocm   ", NUM_SCAN_OPTIONS);
+    SetConfigFilename(ImageHandle);
+    ReadConfig(GlobalConfig.ConfigFilename);
     ScanVolumes();
-    ReadConfig(CONFIG_FILE_NAME);
 
     InitScreen();
     WarnIfLegacyProblems();
@@ -2117,6 +2556,10 @@ efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
                 }
                 break;
 
+            case TAG_FIRMWARE: // Reboot into firmware's user interface
+                RebootIntoFirmware();
+                break;
+
         } // switch()
         MyFreePool(Selection);
         Selection = (ChosenEntry->Title) ? StrDuplicate(ChosenEntry->Title) : NULL;