79ea63f525
GRUB_OPTS has never been documented as externally available, and is not used. Assume it's value to simplify the code. Move the grub version check separately, as we only support grub2 Remove references to buliding i386 images. I don't image it works in any way. Remove ci.md, which is no longer relevant. Refactor the test for "building BIOS image on EFI system" consiberably after these changes. Change-Id: Ia99687815667c3cf5e82cf21d841d3b1008b8fa9
217 lines
7.9 KiB
Bash
Executable File
217 lines
7.9 KiB
Bash
Executable File
#!/bin/bash
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# Configure grub. Note that the various conditionals here are to handle
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# different distributions gracefully.
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if [ ${DIB_DEBUG_TRACE:-1} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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if [ ${DIB_EXTLINUX:-0} != "0" ]; then
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echo "DIB_EXTLINUX no longer supported"
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exit 1
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fi
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# Some distros have pre-installed grub in some other way, and want to
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# skip this.
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if [[ -f "/tmp/grub/install" ]]; then
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exit 0
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fi
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BOOT_DEV=$IMAGE_BLOCK_DEVICE
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# All available devices, handy for some bootloaders...
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declare -A DEVICES
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eval DEVICES=( $IMAGE_BLOCK_DEVICES )
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# Right now we can't use pkg-map to branch by arch, so tag an
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# architecture specific virtual package so we can install the
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# rigth thing based on distribution.
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if [[ "$ARCH" =~ "ppc" ]]; then
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install-packages -m bootloader grub-ppc64
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elif [[ "${DIB_BLOCK_DEVICE}" == "mbr" ||
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"${DIB_BLOCK_DEVICE}" == "gpt" ]]; then
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install-packages -m bootloader grub-pc
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elif [[ "${DIB_BLOCK_DEVICE}" == "efi" ]]; then
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install-packages -m bootloader grub-efi grub-efi-$ARCH
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else
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echo "Failure: I'm not sure what bootloader to install"
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echo "Ensure you have included a block-device-* element"
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exit 1
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fi
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GRUBNAME=$(type -p grub-install) || echo "trying grub2-install"
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if [ -z "$GRUBNAME" ]; then
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GRUBNAME=$(type -p grub2-install)
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fi
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if type grub2-mkconfig >/dev/null; then
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GRUB_MKCONFIG="grub2-mkconfig"
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else
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GRUB_MKCONFIG="grub-mkconfig"
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fi
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if [[ ! $($GRUBNAME --version) =~ ' 2.' ]]; then
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echo "Failure: not grub2"
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exit 1
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fi
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# Some distros keep things in /boot/grub2, others in /boot/grub
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if [ -d /boot/grub2 ]; then
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GRUB_CFG=/boot/grub2/grub.cfg
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GRUBENV=/boot/grub2/grubenv
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else
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# NOTE(ianw) This used to be behind a "-d /boot/grub" but this
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# directory doesn't seem to exist for gentoo at this point;
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# something creates it later. So we just fallback to this
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# unconditionally.
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GRUB_CFG=/boot/grub/grub.cfg
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GRUBENV=/boot/grub/grubenv
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fi
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echo "Installing GRUB2..."
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# When using EFI image-based builds, particularly rhel element
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# based on RHEL>=8.2 .qcow2, we might have /boot/grub2/grubenv
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# as a dangling symlink to /boot/efi because we have extracted
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# it from the root fs, but we didn't populate the separate EFI
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# boot partition from the image. grub2-install calls rename()
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# on this file, so if it's a dangling symlink it errors. Just
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# remove it if it exists.
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if [[ -L $GRUBENV ]]; then
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rm -f $GRUBENV
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fi
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# We need --force so grub does not fail due to being installed on the
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# root partition of a block device.
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GRUB_OPTS="--force "
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# /sys/ comes from the host machine. If the host machine is using EFI
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# but the image being built doesn't have EFI boot-images installed we
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# should set the --target to use a BIOS-based boot-image.
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#
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# * --target tells grub what's the target platform
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# * the boot images are placed in /usr/lib/grub/<cpu>-<platform>
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# * i386-pc is used for BIOS-based machines
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# http://www.gnu.org/software/grub/manual/grub.html#Installation
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#
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if [[ -d /sys/firmware/efi && ! -d /usr/lib/grub/*-efi ]]; then
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GRUB_OPTS="$GRUB_OPTS --target=i386-pc"
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fi
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if [[ "$ARCH" =~ "ppc" ]] ; then
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# For PPC (64-Bit regardless of Endian-ness), we use the "boot"
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# partition as the one to point grub-install to, not the loopback
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# device. ppc has a dedicated PReP boot partition.
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# For grub2 < 2.02~beta3 this needs to be a /dev/mapper/... node after
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# that a dev/loopXpN node will work fine.
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$GRUBNAME --modules="part_msdos" $GRUB_OPTS ${DEVICES[boot]} --no-nvram
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else
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# This set of modules is sufficient for all installs (mbr/gpt/efi)
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modules="part_msdos part_gpt lvm"
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if [[ ${DIB_BLOCK_DEVICE} == "mbr" || ${DIB_BLOCK_DEVICE} == "gpt" ]]; then
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$GRUBNAME --modules="$modules biosdisk" $GRUB_OPTS $BOOT_DEV
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elif [[ ${DIB_BLOCK_DEVICE} == "efi" ]]; then
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# We need to manually set the target if it's different to
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# the host. Setup for EFI
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case $ARCH in
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"x86_64"|"amd64")
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# This call installs grub for BIOS compatability
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# which makes portable EFI/BIOS images.
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$GRUBNAME --modules="$modules" --target=i386-pc $BOOT_DEV
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# Set the x86_64 specific efi target for the generic
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# installation below.
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GRUB_OPTS="--target=x86_64-efi"
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;;
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# At this point, we don't need to override the target
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# for any other architectures.
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esac
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# If we don't have a distro specific dir with presigned efi targets
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# we install a generic one.
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if [ ! -d /boot/efi/$EFI_BOOT_DIR ]; then
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echo "WARNING: /boot/efi/$EFI_BOOT_DIR does not exist, UEFI secure boot not supported"
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# This tells the EFI install to put the EFI binaries into
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# the generic /BOOT directory and avoids trying to update
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# nvram settings.
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extra_options="--removable"
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$GRUBNAME --modules="$modules" $extra_options $GRUB_OPTS $BOOT_DEV
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fi
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fi
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fi
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echo "GRUB_DEVICE=LABEL=${DIB_ROOT_LABEL}" >> /etc/default/grub
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echo 'GRUB_DISABLE_LINUX_UUID=true' >> /etc/default/grub
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echo "GRUB_TIMEOUT=${DIB_GRUB_TIMEOUT:-5}" >>/etc/default/grub
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echo 'GRUB_TERMINAL="serial console"' >>/etc/default/grub
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echo 'GRUB_GFXPAYLOAD_LINUX=auto' >>/etc/default/grub
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if [[ -n "${DIB_BOOTLOADER_SERIAL_CONSOLE}" ]]; then
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SERIAL_CONSOLE="${DIB_BOOTLOADER_SERIAL_CONSOLE}"
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elif [[ "powerpc ppc64 ppc64le" =~ "$ARCH" ]]; then
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# Serial console on Power is hvc0
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SERIAL_CONSOLE="hvc0"
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elif [[ "arm64" =~ "$ARCH" ]]; then
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SERIAL_CONSOLE="ttyAMA0,115200"
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else
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SERIAL_CONSOLE="ttyS0,115200"
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fi
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GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=${SERIAL_CONSOLE} no_timer_check"
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echo "GRUB_CMDLINE_LINUX_DEFAULT=\"${GRUB_CMDLINE_LINUX_DEFAULT} ${DIB_BOOTLOADER_DEFAULT_CMDLINE}\"" >>/etc/default/grub
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echo 'GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"' >>/etc/default/grub
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# os-prober leaks /dev/sda into config file in dual-boot host
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# Disable grub-os-prober to avoid the issue while running
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# grub-mkconfig
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# Setting a flag to track whether the entry is already there in grub config
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PROBER_DISABLED=
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if ! grep -qe "^\s*GRUB_DISABLE_OS_PROBER=true" /etc/default/grub; then
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PROBER_DISABLED=true
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echo 'GRUB_DISABLE_OS_PROBER=true' >> /etc/default/grub
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fi
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# GRUB_MKCONFIG call needs to happen after we configure
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# /etc/default/grub above. Without this we can set inappropriate
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# root device labels and then images don't boot.
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#
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# This produces a legacy config which both bios and uefi can boot
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# Later we copy the final config to an efi specific location to
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# support uefi specific functionality like secure boot.
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$GRUB_MKCONFIG -o $GRUB_CFG
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# If we are using BLS, for debugging purposes dump out the kernel
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if [[ -e /boot/loader/entries ]]; then
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grubby --info=ALL
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fi
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# Remove the fix to disable os_prober
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if [ -n "$PROBER_DISABLED" ]; then
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sed -i '$d' /etc/default/grub
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fi
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# Fix efi specific instructions in grub config file
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if [ -d /sys/firmware/efi ]; then
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sed -i 's%\(initrd\|linux\)efi /boot%\1 /boot%g' $GRUB_CFG
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fi
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# when using efi, and having linux16/initrd16, it needs to be replaced
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# by linuxefi/initrdefi. When building images on a non-efi system,
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# the 16 suffix is added to linux/initrd entries, but we need it to be
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# linuxefi/initrdefi for the image to boot under efi
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if [[ ${DIB_BLOCK_DEVICE} == "efi" ]]; then
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sed -i 's%\(linux\|initrd\)16 /boot%\1efi /boot%g' $GRUB_CFG
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# Finally copy the grub.cfg and grubenv to the EFI specific dir
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# to support functionality like secure boot. We make a copy because
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# /boot and /boot/efi may be different partitions and uefi looks
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# for a specific partition UUID preventing symlinks from working.
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if [ -d /boot/efi/$EFI_BOOT_DIR ] ; then
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cp $GRUB_CFG /boot/efi/$EFI_BOOT_DIR/grub.cfg
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if [ -a $GRUBENV ]; then
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cp $GRUBENV /boot/efi/$EFI_BOOT_DIR/grubenv
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fi
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fi
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fi
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