From 855b3e5cd4d672e961a366ff0f53e3a09a1ad0cc Mon Sep 17 00:00:00 2001 From: Michael Chang Date: Fri, 30 Jun 2023 14:37:41 +0800 Subject: [PATCH 7/9] grub-switch-to-blscfg: adapt to openSUSE A few tweaks to make it 'just works' for openSUSE: - remove RHEL specific $grub_get_kernel_settings and all reference to it. - make $grubdir and $startlink to the path in openSUSE - change the bls template to openSUSE - make $cmdline account for btrfs subvolumes, among others - remove RHEL specific $GRUB_LINUX_MAKE_DEBUG and all related code - remove ostree specific hack - ignore increment.mod Signed-off-by: Michael Chang --- util/grub-switch-to-blscfg.in | 144 ++++++++++++++++++++-------------- 1 file changed, 87 insertions(+), 57 deletions(-) diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in index a851424be..66ecc0cae 100644 --- a/util/grub-switch-to-blscfg.in +++ b/util/grub-switch-to-blscfg.in @@ -34,21 +34,18 @@ fi self=`basename $0` -grub_get_kernel_settings="${sbindir}/@grub_get_kernel_settings@" grub_editenv=${bindir}/@grub_editenv@ -etcdefaultgrub=/etc/default/grub +grub_probe="${sbindir}/@grub_probe@" +etcdefaultgrub=${sysconfdir}/default/grub -eval "$("${grub_get_kernel_settings}")" || true - -EFIDIR=$(grep ^ID= /etc/os-release | sed -e 's/^ID=//' -e 's/rhel/redhat/' -e 's/\"//g') -if [ -d /sys/firmware/efi/efivars/ ]; then - startlink=/etc/grub2-efi.cfg - grubdir=`echo "/@bootdirname@/efi/EFI/${EFIDIR}/" | sed 's,//*,/,g'` -else - startlink=/etc/grub2.cfg - grubdir=`echo "/@bootdirname@/@grubdirname@" | sed 's,//*,/,g'` +if test -f "$etcdefaultgrub" ; then + # shellcheck source=/etc/default/grub + . "$etcdefaultgrub" fi +grubdir=`echo "/@bootdirname@/@grubdirname@" | sed 's,//*,/,g'` +startlink="${grubdir}/grub.cfg" + blsdir=`echo "/@bootdirname@/loader/entries" | sed 's,//*,/,g'` backupsuffix=.bak @@ -58,19 +55,80 @@ arch="$(uname -m)" export TEXTDOMAIN=@PACKAGE@ export TEXTDOMAINDIR="@localedir@" +# shellcheck source=/usr/share/grub2/grub-mkconfig_lib . "${pkgdatadir}/grub-mkconfig_lib" +# FIXME: Abort if grub_probe fails + +GRUB_DEVICE="`${grub_probe} --target=device /`" +GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true +GRUB_DEVICE_PARTUUID="`${grub_probe} --device ${GRUB_DEVICE} --target=partuuid 2> /dev/null`" || true +GRUB_FS="`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2> /dev/null || echo unknown`" + +# loop-AES arranges things so that /dev/loop/X can be our root device, but +# the initrds that Linux uses don't like that. +case ${GRUB_DEVICE} in + /dev/loop/*|/dev/loop[0-9]) + GRUB_DEVICE=$(losetup "${GRUB_DEVICE}" | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/") + ;; +esac + +# Default to disabling partition uuid support to maintian compatibility with +# older kernels. +GRUB_DISABLE_LINUX_PARTUUID=${GRUB_DISABLE_LINUX_PARTUUID-true} + +# btrfs may reside on multiple devices. We cannot pass them as value of root= parameter +# and mounting btrfs requires user space scanning, so force UUID in this case. +if ( [ "x${GRUB_DEVICE_UUID}" = "x" ] && [ "x${GRUB_DEVICE_PARTUUID}" = "x" ] ) \ + || ( [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \ + && [ "x${GRUB_DISABLE_LINUX_PARTUUID}" = "xtrue" ] ) \ + || ( ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \ + && ! test -e "/dev/disk/by-partuuid/${GRUB_DEVICE_PARTUUID}" ) \ + || ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then + LINUX_ROOT_DEVICE=${GRUB_DEVICE} +elif [ "x${GRUB_DEVICE_UUID}" = "x" ] \ + || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ]; then + LINUX_ROOT_DEVICE=PARTUUID=${GRUB_DEVICE_PARTUUID} +else + LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID} +fi + +if [ "x$GRUB_CONMODE" != "x" ]; then + GRUB_CMDLINE_LINUX="conmode=${GRUB_CONMODE} ${GRUB_CMDLINE_LINUX}" +fi + +case x"$GRUB_FS" in + xbtrfs) + if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" != "xtrue" ]; then + rootsubvol="`make_system_path_relative_to_its_root /`" + rootsubvol="${rootsubvol#/}" + if [ "x${rootsubvol}" != x ] && [ "x$SUSE_REMOVE_LINUX_ROOT_PARAM" != "xtrue" ]; then + GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}" + fi + fi + ;; + xzfs) + rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true` + bootfs="`make_system_path_relative_to_its_root / | sed -e "s,@$,,"`" + LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs%/}" + ;; +esac + +if [ "x$SUSE_REMOVE_LINUX_ROOT_PARAM" = "xtrue" ]; then + LINUX_ROOT_DEVICE="" +fi + # Usage: usage # Print the usage. usage () { gettext_printf "Usage: %s\n" "$self" - gettext "Switch to BLS config files.\n"; echo + gettext "Switch to BLS config files. Only for testing purpose !!!\n"; echo echo print_option_help "-h, --help" "$(gettext "print this message and exit")" print_option_help "-V, --version" "$(gettext "print the version information and exit")" echo print_option_help "--backup-suffix=$(gettext "SUFFIX")" "$backupsuffix" - print_option_help "--bls-directory=$(gettext "DIR")" "$blsdir" + print_option_help "--bls-directory=$(gettext "DIR")" "Noop, always $blsdir" print_option_help "--config-file=$(gettext "FILE")" "$startlink" print_option_help "--grub-defaults=$(gettext "FILE")" "$etcdefaultgrub" print_option_help "--grub-directory=$(gettext "DIR")" "$grubdir" @@ -112,11 +170,15 @@ do ;; --bls-directory) - blsdir=`argument $option "$@"` + # blsdir=`argument $option "$@"` + gettext_printf "WARN: --bls-directory is currently disabled, it's always $blsdir !!!\n" + gettext_printf "WARN: use kernel-install instead if you want to test bls directory on ESP !!!\n" shift ;; --bls-directory=*) - blsdir=`echo "$option" | sed 's/--bls-directory=//'` + # blsdir=`echo "$option" | sed 's/--bls-directory=//'` + gettext_printf "WARN: --bls-directory is currently disabled, it's always $blsdir !!!\n" + gettext_printf "WARN: use kernel-install instead if you want to test bls directory on ESP !!!\n" ;; --config-file) @@ -172,7 +234,7 @@ find_grub_cfg() { return 1 } -if ! find_grub_cfg ${startlink} ${grubdir}/grub.cfg ; then +if ! find_grub_cfg "${startlink}" ; then gettext_printf "Couldn't find config file\n" 1>&2 exit 1 fi @@ -190,27 +252,22 @@ fi mkbls() { local kernelver=$1 && shift local datetime=$1 && shift + local prefix=$1 && shift local kernelopts=$1 && shift - local debugname="" - local debugid="" local flavor="" if [ "$kernelver" == *\+* ] ; then local flavor=-"${kernelver##*+}" - if [ "${flavor}" == "-debug" ]; then - local debugname=" with debugging" - local debugid="-debug" - fi fi ( source /etc/os-release cat <"${bls_target}" - - if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then - bls_debug="$(echo ${bls_target} | sed -e "s/${kernelver}/${kernelver}~debug/")" - cp -aT "${bls_target}" "${bls_debug}" - title="$(grep '^title[ \t]' "${bls_debug}" | sed -e 's/^title[ \t]*//')" - options="$(echo "${cmdline} ${GRUB_CMDLINE_LINUX_DEBUG}" | sed -e 's/\//\\\//g')" - sed -i -e "s/^title.*/title ${title}${GRUB_LINUX_DEBUG_TITLE_POSTFIX}/" "${bls_debug}" - sed -i -e "s/^options.*/options ${options}/" "${bls_debug}" - fi done - - if [ -f "/boot/vmlinuz-0-rescue-${MACHINE_ID}" ]; then - mkbls "0-rescue-${MACHINE_ID}" "0" "${bootprefix}" >"${blsdir}/${MACHINE_ID}-0-rescue.conf" - fi } -# The grub2 EFI binary is not copied to the ESP as a part of an ostree -# transaction. Make sure a grub2 version with BLS support is installed -# but only do this if the blsdir is not set, to make sure that the BLS -# parsing module will search for the BLS snippets in the default path. -if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars && \ - ! ${grub_editenv} - list | grep -q blsdir && \ - mountpoint -q /boot; then - grub_binary="$(find /usr/lib/ostree-boot/efi/EFI/${EFIDIR}/ -name grub*.efi)" - install -m 700 ${grub_binary} ${grubdir} || exit 1 - # Create a hidden file to indicate that grub2 now has BLS support. - touch /boot/grub2/.grub2-blscfg-supported -fi - GENERATE=0 if grep '^GRUB_ENABLE_BLSCFG=.*' "${etcdefaultgrub}" \ | grep -vq '^GRUB_ENABLE_BLSCFG="*true"*\s*$' ; then @@ -297,9 +327,7 @@ if [ "${GENERATE}" -eq 1 ] ; then fi if [ -n "${mod_dir}" ]; then - for mod in blscfg increment; do - install -m 700 ${prefix}/lib/grub/${mod_dir}/${mod}.mod ${grubdir}/$mod_dir/ || exit 1 - done + install -m 700 "${pkgdatadir}/${mod_dir}/blscfg.mod" "${grubdir}/$mod_dir/" || exit 1 fi cp -af "${GRUB_CONFIG_FILE}" "${GRUB_CONFIG_FILE}${backupsuffix}" @@ -311,6 +339,8 @@ if [ "${GENERATE}" -eq 1 ] ; then gettext_printf "Updating %s failed\n" "${GRUB_CONFIG_FILE}" exit 1 fi +else + gettext_printf "Do nothing because \$GRUB_ENABLE_BLSCFG is already true in %s\n" "${GRUB_CONFIG_FILE}" fi # Bye. -- 2.44.0