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Merge "Properly set grub2 root device when using efi"

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Zuul 2021-04-08 07:05:17 +00:00 committed by Gerrit Code Review
commit ffe3aa1610
1 changed files with 25 additions and 10 deletions
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35
diskimage_builder/elements/bootloader/finalise.d/50-bootloader
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@ -154,31 +154,31 @@ function install_grub2 {
else
# This set of modules is sufficient for all installs (mbr/gpt/efi)
modules="part_msdos part_gpt lvm"
extra_options=""
if [[ ${DIB_BLOCK_DEVICE} == "mbr" || ${DIB_BLOCK_DEVICE} == "gpt" ]]; then
$GRUBNAME --modules="$modules biosdisk" $GRUB_OPTS $BOOT_DEV
elif [[ ${DIB_BLOCK_DEVICE} == "efi" ]]; then
# This tells the EFI install to put the EFI binaries into
# the generic /BOOT directory and avoids trying to update
# nvram settings.
extra_options="--removable"
# We need to manually set the target if it's different to
# the host. Setup for EFI
case $ARCH in
"x86_64"|"amd64")
GRUB_OPTS="--target=x86_64-efi"
# This call installs grub for BIOS compatability
# which makes portable EFI/BIOS images.
$GRUBNAME --modules="$modules" --target=i386-pc $BOOT_DEV
# Set the x86_64 specific efi target for the generic
# installation below.
GRUB_OPTS="--target=x86_64-efi"
;;
# At this point, we don't need to override the target
# for any other architectures.
esac
if [ -d /boot/efi/$EFI_BOOT_DIR ]; then
# Make the grub config in the EFI directory for UEFI boot
$GRUB_MKCONFIG -o /boot/efi/$EFI_BOOT_DIR/grub.cfg
else
# If we don't have a distro specific dir with presigned efi targets
# we install a generic one.
if [ ! -d /boot/efi/$EFI_BOOT_DIR ]; then
echo "WARNING: /boot/efi/$EFI_BOOT_DIR does not exist, UEFI secure boot not supported"
# This tells the EFI install to put the EFI binaries into
# the generic /BOOT directory and avoids trying to update
# nvram settings.
extra_options="--removable"
$GRUBNAME --modules="$modules" $extra_options $GRUB_OPTS $BOOT_DEV
fi
fi
@ -226,6 +226,13 @@ function install_grub2 {
echo 'GRUB_DISABLE_OS_PROBER=true' >> /etc/default/grub
fi
# GRUB_MKCONFIG call needs to happen after we configure
# /etc/default/grub above. Without this we can set inappropriate
# root device labels and then images don't boot.
#
# This produces a legacy config which both bios and uefi can boot
# Later we copy the final config to an efi specific location to
# support uefi specific functionality like secure boot.
$GRUB_MKCONFIG -o $GRUB_CFG
# Remove the fix to disable os_prober
@ -252,6 +259,14 @@ function install_grub2 {
# linuxefi/initrdefi for the image to boot under efi
if [[ ${DIB_BLOCK_DEVICE} == "efi" ]]; then
sed -i 's%\(linux\|initrd\)16 /boot%\1efi /boot%g' $GRUB_CFG
# Finally copy the grub.cfg to the EFI specific dir to support
# functionality like secure boot. We make a copy because
# /boot and /boot/efi may be different partitions and uefi looks
# for a specific partition UUID preventing symlinks from working.
if [ -d /boot/efi/$EFI_BOOT_DIR ] ; then
cp $GRUB_CFG /boot/efi/$EFI_BOOT_DIR/grub.cfg
fi
fi
}