X-Git-Url: https://code.delx.au/refind/blobdiff_plain/346735a39ca8b64c8278ba342a633b5acce0159b..add96ff8057d0c03026395992d9ecde081c8dca7:/refind/config.c

diff --git a/refind/config.c b/refind/config.c
index 6343f12..afededb 100644
--- a/refind/config.c
+++ b/refind/config.c
@@ -1007,10 +1007,15 @@ static REFIT_FILE * GenerateOptionsFromEtcFstab(REFIT_VOLUME *Volume) {
             FreeTokenLine(&TokenList, &TokenCount);
          } // while
 
-         Options->Current8Ptr  = (CHAR8 *)Options->Buffer;
-         Options->End8Ptr      = Options->Current8Ptr + Options->BufferSize;
-         Options->Current16Ptr = (CHAR16 *)Options->Buffer;
-         Options->End16Ptr     = Options->Current16Ptr + (Options->BufferSize >> 1);
+         if (Options->Buffer) {
+            Options->Current8Ptr  = (CHAR8 *)Options->Buffer;
+            Options->End8Ptr      = Options->Current8Ptr + Options->BufferSize;
+            Options->Current16Ptr = (CHAR16 *)Options->Buffer;
+            Options->End16Ptr     = Options->Current16Ptr + (Options->BufferSize >> 1);
+         } else {
+             MyFreePool(Options);
+             Options = NULL;
+         }
 
          MyFreePool(Fstab->Buffer);
          MyFreePool(Fstab);
@@ -1024,25 +1029,26 @@ static REFIT_FILE * GenerateOptionsFromEtcFstab(REFIT_VOLUME *Volume) {
 // filesystem according to the Freedesktop.org Discoverable Partitions Spec
 // (http://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/),
 // this function returns an appropriate file with two lines, one with
-// "ro root=PARTUUID={GUID}" and the other with that plus "single".
+// "ro root=/dev/disk/by-partuuid/{GUID}" and the other with that plus "single".
 // Note that this function returns the LAST partition found with the
 // appropriate type code, so this will work poorly on dual-boot systems or
 // if the type code is set incorrectly.
 static REFIT_FILE * GenerateOptionsFromPartTypes(VOID) {
     REFIT_FILE   *Options = NULL;
-    CHAR16       *Line, *GuidString;
+    CHAR16       *Line, *GuidString, *WriteStatus;
 
     if (GlobalConfig.DiscoveredRoot) {
         Options = AllocateZeroPool(sizeof(REFIT_FILE));
         if (Options) {
             Options->Encoding = ENCODING_UTF16_LE;
             GuidString = GuidAsString(&(GlobalConfig.DiscoveredRoot->PartGuid));
+            WriteStatus = GlobalConfig.DiscoveredRoot->IsMarkedReadOnly ? L"ro" : L"rw";
             ToLower(GuidString);
             if (GuidString) {
-                Line = PoolPrint(L"\"Boot with normal options\"    \"ro root=/dev/disk/by-partuuid/%s\"\n", GuidString);
+                Line = PoolPrint(L"\"Boot with normal options\"    \"%s root=/dev/disk/by-partuuid/%s\"\n", WriteStatus, GuidString);
                 MergeStrings((CHAR16 **) &(Options->Buffer), Line, 0);
                 MyFreePool(Line);
-                Line = PoolPrint(L"\"Boot into single-user mode\"  \"ro root=/dev/disk/by-partuuid/%s single\"\n", GuidString);
+                Line = PoolPrint(L"\"Boot into single-user mode\"  \"%s root=/dev/disk/by-partuuid/%s single\"\n", WriteStatus, GuidString);
                 MergeStrings((CHAR16**) &(Options->Buffer), Line, 0);
                 MyFreePool(Line);
                 MyFreePool(GuidString);