270 lines
8.2 KiB
Bash
Executable File
270 lines
8.2 KiB
Bash
Executable File
#! /bin/sh
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set -e
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# grub-mkconfig helper script.
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# Copyright (C) 2022 TTTech Industrial Automation AG
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#
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# Create boot menu entry to boot default entry with kernel parameters
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# add required by acrn-board-inspector
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#
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# GRUB is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# GRUB is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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. "$pkgdatadir/grub-mkconfig_lib"
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CLASS="--class gnu-linux --class gnu --class os"
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# to be appended for acrn-board-inspector
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GRUB_CMDLINE_ACRN_BOARD_INSPECTOR="iomem=relaxed intel_idle.max_cstate=0 intel_pstate=disable"
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if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
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OS=GNU/Linux
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else
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case ${GRUB_DISTRIBUTOR} in
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Ubuntu|Kubuntu)
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OS="${GRUB_DISTRIBUTOR}"
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;;
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*)
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OS="${GRUB_DISTRIBUTOR} GNU/Linux"
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;;
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esac
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CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}"
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fi
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# loop-AES arranges things so that /dev/loop/X can be our root device, but
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# the initrds that Linux uses don't like that.
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case ${GRUB_DEVICE} in
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/dev/loop/*|/dev/loop[0-9])
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GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
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# We can't cope with devices loop-mounted from files here.
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case ${GRUB_DEVICE} in
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/dev/*) ;;
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*) exit 0 ;;
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esac
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;;
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esac
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# Default to disabling partition uuid support to maintian compatibility with
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# older kernels.
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GRUB_DISABLE_LINUX_PARTUUID=${GRUB_DISABLE_LINUX_PARTUUID-true}
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# btrfs may reside on multiple devices. We cannot pass them as value of root= parameter
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# and mounting btrfs requires user space scanning, so force UUID in this case.
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if ( [ "x${GRUB_DEVICE_UUID}" = "x" ] && [ "x${GRUB_DEVICE_PARTUUID}" = "x" ] ) \
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|| ( [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
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&& [ "x${GRUB_DISABLE_LINUX_PARTUUID}" = "xtrue" ] ) \
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|| ( ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \
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&& ! test -e "/dev/disk/by-partuuid/${GRUB_DEVICE_PARTUUID}" ) \
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|| ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then
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LINUX_ROOT_DEVICE=${GRUB_DEVICE}
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elif [ "x${GRUB_DEVICE_UUID}" = "x" ] \
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|| [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ]; then
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LINUX_ROOT_DEVICE=PARTUUID=${GRUB_DEVICE_PARTUUID}
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else
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LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
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fi
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case x"$GRUB_FS" in
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xbtrfs)
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rootsubvol="`make_system_path_relative_to_its_root /`"
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rootsubvol="${rootsubvol#/}"
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if [ "x${rootsubvol}" != x ]; then
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GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
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fi;;
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xzfs)
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rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
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bootfs="`make_system_path_relative_to_its_root / | sed -e "s,@$,,"`"
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LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs%/}"
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;;
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esac
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if [ -x /lib/recovery-mode/recovery-menu ]; then
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GRUB_CMDLINE_LINUX_RECOVERY=recovery
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else
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GRUB_CMDLINE_LINUX_RECOVERY=single
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fi
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linux_entry ()
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{
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os="$1"
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version="$2"
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args="$3"
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if [ -z "$boot_device_id" ]; then
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boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
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fi
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echo "menuentry '$(echo "$os, with Linux ${version}" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-acrn-board-inspector-$boot_device_id' {"
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# Use ELILO's generic "efifb" when it's known to be available.
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# FIXME: We need an interface to select vesafb in case efifb can't be used.
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if [ "x$GRUB_GFXPAYLOAD_LINUX" = x ]; then
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echo " load_video"
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else
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if [ "x$GRUB_GFXPAYLOAD_LINUX" != xtext ]; then
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echo " load_video"
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fi
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fi
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if [ "x$GRUB_GFXPAYLOAD_LINUX" != x ]; then
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echo " gfxmode \$linux_gfx_mode"
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fi
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echo " insmod gzio"
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if [ x$dirname = x/ ]; then
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if [ -z "${prepare_root_cache}" ]; then
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prepare_root_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE} | grub_add_tab)"
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fi
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printf '%s\n' "${prepare_root_cache}"
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else
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if [ -z "${prepare_boot_cache}" ]; then
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prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)"
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fi
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printf '%s\n' "${prepare_boot_cache}"
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fi
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message="$(gettext_printf "Loading Linux %s ..." ${version})"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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EOF
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if test -d /sys/firmware/efi && test -e "${linux}.efi.signed"; then
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cat << EOF
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linux ${rel_dirname}/${basename}.efi.signed root=${linux_root_device_thisversion} ro ${args}
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EOF
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else
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cat << EOF
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linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args}
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EOF
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fi
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if test -n "${initrd}" ; then
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# TRANSLATORS: ramdisk isn't identifier. Should be translated.
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message="$(gettext_printf "Loading initial ramdisk ...")"
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cat << EOF
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echo '$(echo "$message" | grub_quote)'
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EOF
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initrd_path=
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for i in ${initrd}; do
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initrd_path="${initrd_path} ${rel_dirname}/${i}"
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done
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cat << EOF
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initrd $(echo $initrd_path)
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EOF
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fi
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cat << EOF
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}
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EOF
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}
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machine=`uname -m`
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case "x$machine" in
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xx86_64)
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GENKERNEL_ARCH="x86"
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list=
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for i in /boot/vmlinuz-* /vmlinuz-* /boot/kernel-* ; do
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if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi
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done ;;
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*)
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list=
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;;
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esac
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prepare_boot_cache=
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prepare_root_cache=
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boot_device_id=
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while [ "x$list" != "x" ] ; do
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linux=`version_find_latest $list`
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case $linux in
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*.efi.signed)
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# We handle these in linux_entry.
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list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
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continue
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;;
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esac
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gettext_printf "Found linux image: %s\n" "$linux" >&2
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basename=`basename $linux`
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dirname=`dirname $linux`
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rel_dirname=`make_system_path_relative_to_its_root $dirname`
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version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
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alt_version=`echo $version | sed -e "s,\.old$,,g"`
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linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
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initrd_early=
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for i in ${GRUB_EARLY_INITRD_LINUX_STOCK} \
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${GRUB_EARLY_INITRD_LINUX_CUSTOM}; do
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if test -e "${dirname}/${i}" ; then
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initrd_early="${initrd_early} ${i}"
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fi
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done
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initrd_real=
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for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
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"initrd-${version}" "initramfs-${version}.img" \
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"initrd.img-${alt_version}" "initrd-${alt_version}.img" \
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"initrd-${alt_version}" "initramfs-${alt_version}.img" \
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"initramfs-genkernel-${version}" \
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"initramfs-genkernel-${alt_version}" \
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"initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
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"initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do
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if test -e "${dirname}/${i}" ; then
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initrd_real="${i}"
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break
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fi
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done
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initrd=
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if test -n "${initrd_early}" || test -n "${initrd_real}"; then
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initrd="${initrd_early} ${initrd_real}"
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initrd_display=
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for i in ${initrd}; do
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initrd_display="${initrd_display} ${dirname}/${i}"
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done
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gettext_printf "Found initrd image: %s\n" "$(echo $initrd_display)" >&2
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fi
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config=
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for i in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
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if test -e "${i}" ; then
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config="${i}"
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break
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fi
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done
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initramfs=
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if test -n "${config}" ; then
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initramfs=`grep CONFIG_INITRAMFS_SOURCE= "${config}" | cut -f2 -d= | tr -d \"`
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fi
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if test -z "${initramfs}" && test -z "${initrd_real}" ; then
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# "UUID=" and "ZFS=" magic is parsed by initrd or initramfs. Since there's
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# no initrd or builtin initramfs, it can't work here.
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if [ "x${GRUB_DEVICE_PARTUUID}" = "x" ] \
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|| [ "x${GRUB_DISABLE_LINUX_PARTUUID}" = "xtrue" ]; then
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linux_root_device_thisversion=${GRUB_DEVICE}
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else
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linux_root_device_thisversion=PARTUUID=${GRUB_DEVICE_PARTUUID}
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fi
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fi
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linux_entry "${OS} - ACRN Board Inspector" "${version}" \
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"${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT} ${GRUB_CMDLINE_ACRN_BOARD_INSPECTOR}"
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if [ -z "$boot_device_id" ]; then
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boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
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fi
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list=`echo $list | tr ' ' '\n' | fgrep -vx "$linux" | tr '\n' ' '`
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done
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echo ""
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