From: srs5694 Date: Wed, 2 Jan 2013 06:24:29 +0000 (-0500) Subject: Improvements to install.sh to better handle installs from BIOS-mode X-Git-Url: https://code.delx.au/refind/commitdiff_plain/e1ec473588a10ba284d916f49622fdbcb5d4f1b1 Improvements to install.sh to better handle installs from BIOS-mode boots. --- diff --git a/docs/refind/installing.html b/docs/refind/installing.html index 14f72ac..05ebb41 100644 --- a/docs/refind/installing.html +++ b/docs/refind/installing.html @@ -114,6 +114,8 @@ href="mailto:rodsmith@rodsbooks.com">rodsmith@rodsbooks.com

  • Extra install.sh Instructions
  • +
  • Using refind-unhijack.sh
  • +
  • Installing rEFInd Manually @@ -156,6 +158,8 @@ href="mailto:rodsmith@rodsbooks.com">rodsmith@rodsbooks.com

    Either command produces output similar to that described for using the install.sh script, so you can check it for error messages and other signs of trouble. The package file installs rEFInd and registers it with the EFI to be the default boot loader. The script that runs as part of the installation process tries to determine if you're using Secure Boot, and if so it will try to configure rEFInd to launch using shim; however, this won't work correctly on all systems. Ubuntu 12.10 users who are booting with Secure Boot active should be wary, since the resulting installation will probably try to use Ubuntu's version of shim, which won't work correctly with rEFInd.

    +

    Since version 0.6.3, the installation script makes an attempt to install rEFInd in a bootable way even if you run the script from a BIOS-mode boot, and therefore the RPM and Debian packages do the same. I cannot guarantee that this will work, though, and even if it does, some of the tricks that install.sh uses might not last for long. You might therefore want to run the refind-unhijack.sh script after you boot Linux in EFI mode for the first time.

    +

    Since version 0.6.2-2, my package files have installed the rEFInd binaries to /usr/share/refind-version, the documentation to /usr/share/doc/refind-version, and a few miscellaneous files elsewhere. Upon installation, the package runs the install.sh script to copy the files to the ESP. This enables you to re-install rEFInd after the fact by running install.sh, should some other tool or OS wipe the ESP or should the installation go awry. In such cases you can use install.sh or install manually.

    @@ -171,7 +175,7 @@ href="mailto:rodsmith@rodsbooks.com">rodsmith@rodsbooks.com

    Under Linux, the install.sh script installs rEFInd to your disk's ESP. Under Mac OS X, the script installs rEFInd to your current OS X boot partition by default; but you can install to your ESP instead by passing the script the --esp option. Under either OS, you can install to something other than the currently-running OS by using the --root /mountpoint option. (See Table 1 for details.)

    -

    Before running this script under Linux, you should ensure that your ESP is mounted at /boot or /boot/efi, as described in more detail in the Installing rEFInd Manually Using Linux section. (If you installed Linux in EFI mode, chances are your ESP is properly mounted.) This precaution isn't necessary under OS X.

    +

    Before running this script under Linux, you should ensure that your ESP is mounted at /boot or /boot/efi, as described in more detail in the Installing rEFInd Manually Using Linux section. (If you installed Linux in EFI mode, chances are your ESP is properly mounted.) This precaution isn't necessary under OS X. If you run install.sh from a BIOS/legacy-mode boot, particularly on a computer that also runs Windows, you should be aware that the tricks the script uses to install itself from BIOS mode are rather delicate. You can convert to a more conventional configuration using the refind-unhijack.sh script.

    A sample run under Linux looks something like this:

    @@ -338,6 +342,44 @@ install.sh [--esp | --usedefault device-file | --root

    In any event, you should peruse the script's output to ensure that everything looks OK. install.sh displays error messages when it encounters errors, such as if the ESP is mounted read-only or if you run out of disk space. You may need to correct such problems manually and re-run the script. In some cases you may need to fall back on manual installation, which gives you better control over details such as which partition to use for installation.

    + +

    Using refind-unhijack.sh

    +
    + +

    Sometimes it's necessary to install rEFInd from a BIOS/legacy-mode boot. This can happen because you've accidentally installed Linux in this mode or because you're using a BIOS-mode emergency disc to do the installation, for instance. Ordinarily, such installations are unlikely to work, particularly if the computer already has an EFI-mode OS installed. Since version 0.6.3, though, rEFInd's install.sh script has attempted to install in one of three ways when run from BIOS mode:

    + + + +

    The first two approaches are perfectly legitimate and are unlikely to cause problems, although they also might not work in all circumstances. The third approach is essentially an act of desperation, and it violates the usual rule that each OS should manage its own boot loader directory. It has the benefit of working, though; and in fact on some computers with buggy firmware, this approach may be the only way to get rEFInd (or any other non-Microsoft boot loader) to work. When install.sh uses this method, it notifies you of the fact:

    + +
    Running in BIOS mode with a suspected Windows installation; moving boot loader
    +files so as to install to /boot/efi/EFI/Microsoft/Boot.
    + +

    The install.sh script preserves the Windows boot loader, and rEFInd should continue to be able to boot Windows when installed in this way. It's possible, though, that Windows will notice the change and will attempt to "fix" the "damage," which will remove rEFInd from the boot process. To avoid this problem, you can run the refind-unhijack.sh script. This script moves the rEFInd installation files to a more appropriate location on the ESP (EFI/refind) and registers rEFInd with the EFI in the officially-sanctioned manner.

    + +

    Unfortunately, on some systems you really should leave rEFInd installed as EFI/Microsoft/Boot/bootmgfw.efi; some EFIs have bugs that prevent them from launching any boot loader but that one. Thus, there are no hard-and-fast rules; you'll have to determine what works on your system and run refind-unhijack.sh or not as you deem best.

    + +

    To run the script, type its name (and perhaps its path) as root. It will report on what it does:

    + +
    # ./refind-unhijack.sh
    +I'm not yet written!
    + +

    If you run this script on a system whose Windows boot loader has not been "hijacked" by rEFInd, no harm will come of it; the script only does its thing when it detects that rEFInd is installed where the Windows boot loader should be.

    +

    Installing rEFInd Manually

    diff --git a/install.sh b/install.sh index 6a90742..91e66a4 100755 --- a/install.sh +++ b/install.sh @@ -29,6 +29,8 @@ # # Revision history: # +# 0.6.3 -- Support for detecting rEFInd in EFI/BOOT and EFI/Microsoft/Boot +# directories & for installing to EFI/BOOT in BIOS mode # 0.6.2-1 -- Added --yes option & tweaked key-copying for use with RPM install script # 0.6.1 -- Added --root option; minor bug fixes # 0.6.0 -- Changed --drivers to --alldrivers and added --nodrivers option; @@ -53,6 +55,7 @@ RootDir="/" TargetDir=/EFI/refind LocalKeysBase="refind_local" ShimSource="none" +TargetShim="default" TargetX64="refind_x64.efi" TargetIA32="refind_ia32.efi" LocalKeys=0 @@ -256,14 +259,7 @@ CopyRefindFiles() { fi Refind="" CopyKeys - elif [[ $Platform == 'EFI32' ]] ; then - cp $RefindDir/refind_ia32.efi $InstallDir/$TargetDir/$TargetIA32 - if [[ $? != 0 ]] ; then - Problems=1 - fi - CopyDrivers ia32 - Refind="refind_ia32.efi" - elif [[ $Platform == 'EFI64' ]] ; then + elif [[ $Platform == 'EFI64' || $TargetDir == "/EFI/Microsoft/Boot" ]] ; then cp $RefindDir/refind_x64.efi $InstallDir/$TargetDir/$TargetX64 if [[ $? != 0 ]] ; then Problems=1 @@ -272,7 +268,9 @@ CopyRefindFiles() { Refind="refind_x64.efi" CopyKeys if [[ $ShimSource != "none" ]] ; then - TargetShim=`basename $ShimSource` + if [[ $TargetShim == "default" ]] ; then + TargetShim=`basename $ShimSource` + fi CopyShimFiles Refind=$TargetShim if [[ $LocalKeys == 0 ]] ; then @@ -282,6 +280,13 @@ CopyRefindFiles() { cp $ThisDir/keys/refind.crt $EtcKeysDir 2> /dev/null fi fi + elif [[ $Platform == 'EFI32' ]] ; then + cp $RefindDir/refind_ia32.efi $InstallDir/$TargetDir/$TargetIA32 + if [[ $? != 0 ]] ; then + Problems=1 + fi + CopyDrivers ia32 + Refind="refind_ia32.efi" else echo "Unknown platform! Aborting!" exit 1 @@ -592,7 +597,6 @@ AddBootEntry() { InstallIt="0" Efibootmgr=`which efibootmgr 2> /dev/null` if [[ $Efibootmgr ]] ; then - modprobe efivars &> /dev/null InstallDisk=`grep $InstallDir /etc/mtab | cut -d " " -f 1 | cut -c 1-8` PartNum=`grep $InstallDir /etc/mtab | cut -d " " -f 1 | cut -c 9-10` EntryFilename=$TargetDir/$Refind @@ -663,52 +667,148 @@ GenerateRefindLinuxConf() { fi } +# Set varaibles for installation in EFI/BOOT directory +SetVarsForBoot() { + TargetDir="/EFI/BOOT" + if [[ $ShimSource == "none" ]] ; then + TargetX64="bootx64.efi" + TargetIA32="bootia32.efi" + else + TargetX64="grubx64.efi" + TargetIA32="bootia32.efi" + TargetShim="bootx64.efi" + fi +} # SetFilenamesForBoot() + +# Set variables for installation in EFI/Microsoft/Boot directory +SetVarsForMsBoot() { + TargetDir="/EFI/Microsoft/Boot" + if [[ $ShimSource == "none" ]] ; then + TargetX64="bootmgfw.efi" + else + TargetX64="grubx64.efi" + TargetShim="bootmgfw.efi" + fi +} + +# TargetDir defaults to /EFI/refind; however, this function adjusts it as follows: +# - If an existing refind.conf is available in /EFI/BOOT or /EFI/Microsoft/Boot, +# install to that directory under the suitable name; but DO NOT do this if +# refind.conf is also in /EFI/refind. +# - If booted in BIOS mode and the ESP lacks any other EFI files, install to +# /EFI/BOOT +# - If booted in BIOS mode and there's no refind.conf file and there is a +# /EFI/Microsoft/Boot/bootmgfw.efi file, move it down one level and +# install under that name, "hijacking" the Windows boot loader filename +DetermineTargetDir() { + Upgrade=0 + + if [[ -f $InstallDir/EFI/BOOT/refind.conf ]] ; then + SetVarsForBoot + Upgrade=1 + fi + if [[ -f $InstallDir/EFI/Microsoft/Boot/refind.conf ]] ; then + SetVarsForMsBoot + Upgrade=1 + fi + if [[ -f $InstallDir/EFI/refind/refind.conf ]] ; then + TargetDir="/EFI/refind" + Upgrade=1 + fi + if [[ $Upgrade == 1 ]] ; then + echo "Found rEFInd installation in $InstallDir$TargetDir; upgrading it." + fi + + if [[ ! -d /sys/firmware/efi && $Upgrade == 0 ]] ; then # BIOS-mode + FoundEfiFiles=`find $InstallDir/EFI/BOOT -name "*.efi" 2> /dev/null` + FoundConfFiles=`find $InstallDir -name "refind\.conf" 2> /dev/null` + if [[ ! -n $FoundConfFiles && -f $InstallDir/EFI/Microsoft/Boot/bootmgfw.efi ]] ; then + mv -n $InstallDir/EFI/Microsoft/Boot/bootmgfw.efi $InstallDir/EFI/Microsoft &> /dev/null + SetVarsForMsBoot + echo "Running in BIOS mode with a suspected Windows installation; moving boot loader" + echo "files so as to install to $InstallDir$TargetDir." + elif [[ ! -n $FoundEfiFiles ]] ; then # In BIOS mode and no default loader; install as default loader + SetVarsForBoot + echo "Running in BIOS mode with no existing default boot loader; installing to" + echo $InstallDir$TargetDir + else + echo "Running in BIOS mode with an existing default boot loader; backing it up and" + echo "installing rEFInd in its place." + if [[ -d $InstallDir/EFI/BOOT-rEFIndBackup ]] ; then + echo "" + echo "Caution: An existing backup of a default boot loader exists! If the current" + echo "default boot loader and the backup are different boot loaders, the current" + echo "one will become inaccessible." + echo "" + echo -n "Do you want to proceed with installation (Y/N)? " + ReadYesNo + if [[ $YesNo == "Y" || $YesNo == "y" ]] ; then + echo "OK; continuing with the installation..." + else + exit 0 + fi + fi + mv -n $InstallDir/EFI/BOOT $InstallDir/EFI/BOOT-rEFIndBackup + SetVarsForBoot + fi + fi # BIOS-mode +} # DetermineTargetDir() + # Controls rEFInd installation under Linux. # Sets Problems=1 if something goes wrong. InstallOnLinux() { echo "Installing rEFInd on Linux...." + modprobe efivars &> /dev/null if [[ $TargetDir == "/EFI/BOOT" ]] ; then MountDefaultTarget else FindLinuxESP + DetermineTargetDir fi CpuType=`uname -m` if [[ $CpuType == 'x86_64' ]] ; then Platform="EFI64" - if [[ $LocalKeys == 1 ]] ; then - ReSignBinaries - fi - elif [[ $CpuType == 'i386' || $CpuType == 'i486' || $CpuType == 'i586' || $CpuType == 'i686' ]] ; then - if [[ $ShimSource != "none" && $TargetDir != "/BOOT/EFI" ]] ; then - echo "" - echo "CAUTION: Neither rEFInd nor shim currently supports 32-bit systems, so you" - echo "should not use the --shim option to install on such systems. Aborting!" - echo "" - exit 1 - fi + elif [[ ($CpuType == 'i386' || $CpuType == 'i486' || $CpuType == 'i586' || $CpuType == 'i686') ]] ; then Platform="EFI32" - echo - echo "CAUTION: This Linux installation uses a 32-bit kernel. 32-bit EFI-based" - echo "computers are VERY RARE. If you've installed a 32-bit version of Linux" - echo "on a 64-bit computer, you should manually install the 64-bit version of" - echo "rEFInd. If you're installing on a Mac, you should do so from OS X. If" - echo "you're positive you want to continue with this installation, answer 'Y'" - echo "to the following question..." - echo - echo -n "Are you sure you want to continue (Y/N)? " - ReadYesNo - if [[ $YesNo == "Y" || $YesNo == "y" ]] ; then - echo "OK; continuing with the installation..." - else - exit 0 - fi + # If we're in EFI mode, do some sanity checks, and alert the user or even + # abort. Not in BIOS mode, though, since that could be used on an emergency + # disc to try to recover a troubled Linux installation. + if [[ -d /sys/firmware/efi ]] ; then + if [[ $ShimSource != "none" && $TargetDir != "/BOOT/EFI" ]] ; then + echo "" + echo "CAUTION: Neither rEFInd nor shim currently supports 32-bit systems, so you" + echo "should not use the --shim option to install on such systems. Aborting!" + echo "" + exit 1 + fi + echo + echo "CAUTION: This Linux installation uses a 32-bit kernel. 32-bit EFI-based" + echo "computers are VERY RARE. If you've installed a 32-bit version of Linux" + echo "on a 64-bit computer, you should manually install the 64-bit version of" + echo "rEFInd. If you're installing on a Mac, you should do so from OS X. If" + echo "you're positive you want to continue with this installation, answer 'Y'" + echo "to the following question..." + echo + echo -n "Are you sure you want to continue (Y/N)? " + ReadYesNo + if [[ $YesNo == "Y" || $YesNo == "y" ]] ; then + echo "OK; continuing with the installation..." + else + exit 0 + fi + fi # in EFI mode else echo "Unknown CPU type '$CpuType'; aborting!" exit 1 fi + + if [[ $LocalKeys == 1 ]] ; then + ReSignBinaries + fi + CheckSecureBoot CopyRefindFiles - if [[ $TargetDir != "/EFI/BOOT" ]] ; then + if [[ $TargetDir != "/EFI/BOOT" && $TargetDir != "/EFI/Microsoft/Boot" ]] ; then AddBootEntry GenerateRefindLinuxConf fi