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grub2
0003-Add-grub2-switch-to-blscfg.patch
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File 0003-Add-grub2-switch-to-blscfg.patch of Package grub2
From 90153f1c9631498723450d84e014e25865fecc1b Mon Sep 17 00:00:00 2001 From: Peter Jones <pjones@redhat.com> Date: Thu, 15 Mar 2018 14:12:40 -0400 Subject: [PATCH 3/9] Add grub2-switch-to-blscfg Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> [jhlavac: Use ${etcdefaultgrub} instead of /etc/default/grub] Signed-off-by: Jan Hlavac <jhlavac@redhat.com> [rharwood: skip on ostree installations, migrate man to h2m] Signed-off-by: Robbie Harwood <rharwood@redhat.com> --- Makefile.util.def | 7 + docs/man/grub-switch-to-blscfg.h2m | 2 + util/grub-switch-to-blscfg.in | 317 +++++++++++++++++++++++++++++ util/grub.d/10_linux.in | 2 +- 4 files changed, 327 insertions(+), 1 deletion(-) create mode 100644 docs/man/grub-switch-to-blscfg.h2m create mode 100644 util/grub-switch-to-blscfg.in diff --git a/Makefile.util.def b/Makefile.util.def index 6bb30c165..ffedea24a 100644 --- a/Makefile.util.def +++ b/Makefile.util.def @@ -1460,6 +1460,13 @@ program = { ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)'; }; +script = { + name = grub-switch-to-blscfg; + common = util/grub-switch-to-blscfg.in; + mansection = 8; + installdir = sbin; +}; + program = { name = grub-glue-efi; mansection = 1; diff --git a/docs/man/grub-switch-to-blscfg.h2m b/docs/man/grub-switch-to-blscfg.h2m new file mode 100644 index 000000000..fa341426a --- /dev/null +++ b/docs/man/grub-switch-to-blscfg.h2m @@ -0,0 +1,2 @@ +[NAME] +grub-switch-to-blscfg \- switch to using BLS config files diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in new file mode 100644 index 000000000..a851424be --- /dev/null +++ b/util/grub-switch-to-blscfg.in @@ -0,0 +1,317 @@ +#! /bin/sh +# +# Set a default boot entry for GRUB. +# Copyright (C) 2004,2009 Free Software Foundation, Inc. +# +# GRUB is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# GRUB is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GRUB. If not, see <http://www.gnu.org/licenses/>. + +#set -eu + +# Initialize some variables. +prefix=@prefix@ +exec_prefix=@exec_prefix@ +sbindir=@sbindir@ +bindir=@bindir@ +sysconfdir="@sysconfdir@" +PACKAGE_NAME=@PACKAGE_NAME@ +PACKAGE_VERSION=@PACKAGE_VERSION@ +datarootdir="@datarootdir@" +datadir="@datadir@" +if [ ! -v pkgdatadir ]; then + pkgdatadir="${datadir}/@PACKAGE@" +fi + +self=`basename $0` + +grub_get_kernel_settings="${sbindir}/@grub_get_kernel_settings@" +grub_editenv=${bindir}/@grub_editenv@ +etcdefaultgrub=/etc/default/grub + +eval "$("${grub_get_kernel_settings}")" || true + +EFIDIR=$(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/${EFIDIR}/" | sed 's,//*,/,g'` +else + startlink=/etc/grub2.cfg + grubdir=`echo "/@bootdirname@/@grubdirname@" | sed 's,//*,/,g'` +fi + +blsdir=`echo "/@bootdirname@/loader/entries" | sed 's,//*,/,g'` + +backupsuffix=.bak + +arch="$(uname -m)" + +export TEXTDOMAIN=@PACKAGE@ +export TEXTDOMAINDIR="@localedir@" + +. "${pkgdatadir}/grub-mkconfig_lib" + +# Usage: usage +# Print the usage. +usage () { + gettext_printf "Usage: %s\n" "$self" + gettext "Switch to BLS config files.\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 "--config-file=$(gettext "FILE")" "$startlink" + print_option_help "--grub-defaults=$(gettext "FILE")" "$etcdefaultgrub" + print_option_help "--grub-directory=$(gettext "DIR")" "$grubdir" + # echo + # gettext "Report bugs to <bug-grub@gnu.org>."; echo +} + +argument () { + opt=$1 + shift + + if test $# -eq 0; then + gettext_printf "%s: option requires an argument -- \`%s'\n" "$self" "$opt" 1>&2 + exit 1 + fi + echo $1 +} + +# Check the arguments. +while test $# -gt 0 +do + option=$1 + shift + + case "$option" in + -h | --help) + usage + exit 0 ;; + -V | --version) + echo "$self (${PACKAGE_NAME}) ${PACKAGE_VERSION}" + exit 0 ;; + + --backup-suffix) + backupsuffix=`argument $option "$@"` + shift + ;; + --backup-suffix=*) + backupsuffix=`echo "$option" | sed 's/--backup-suffix=//'` + ;; + + --bls-directory) + blsdir=`argument $option "$@"` + shift + ;; + --bls-directory=*) + blsdir=`echo "$option" | sed 's/--bls-directory=//'` + ;; + + --config-file) + startlink=`argument $option "$@"` + shift + ;; + --config-file=*) + startlink=`echo "$option" | sed 's/--config-file=//'` + ;; + + --grub-defaults) + etcdefaultgrub=`argument $option "$@"` + shift + ;; + --grub-defaults=*) + etcdefaultgrub=`echo "$option" | sed 's/--grub-defaults=//'` + ;; + + --grub-directory) + grubdir=`argument $option "$@"` + shift + ;; + --grub-directory=*) + grubdir=`echo "$option" | sed 's/--grub-directory=//'` + ;; + + *) + gettext_printf "Unrecognized option \`%s'\n" "$option" 1>&2 + usage + exit 1 + ;; + esac +done + +find_grub_cfg() { + local candidate="" + while [ -e "${candidate}" -o $# -gt 0 ] + do + if [ ! -e "${candidate}" ] ; then + candidate="$1" + shift + fi + + if [ -L "${candidate}" ]; then + candidate="$(realpath "${candidate}")" + fi + + if [ -f "${candidate}" ]; then + export GRUB_CONFIG_FILE="${candidate}" + return 0 + fi + done + return 1 +} + +if ! find_grub_cfg ${startlink} ${grubdir}/grub.cfg ; then + gettext_printf "Couldn't find config file\n" 1>&2 + exit 1 +fi + +if [ ! -d "${blsdir}" ]; then + install -m 700 -d "${blsdir}" +fi + +if [ -f /etc/machine-id ]; then + MACHINE_ID=$(cat /etc/machine-id) +else + MACHINE_ID=$(dmesg | sha256sum) +fi + +mkbls() { + local kernelver=$1 && shift + local datetime=$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 <<EOF +title ${NAME} (${kernelver}) ${VERSION}${debugname} +version ${kernelver}${debugid} +linux /vmlinuz-${kernelver} +initrd /initramfs-${kernelver}.img +options ${kernelopts} +grub_users \$grub_users +grub_arg --unrestricted +grub_class kernel${flavor} +EOF + ) | cat +} + +copy_bls() { + for kernelver in $(cd /lib/modules/ ; ls -1) "" ; do + bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf" + linux="/vmlinuz-${kernelver}" + linux_path="/boot${linux}" + kernel_dir="/lib/modules/${kernelver}" + + if [ ! -d "${kernel_dir}" ] ; then + continue + fi + if [ ! -f "${linux_path}" ]; then + continue + fi + + linux_relpath="$("${grub_mkrelpath}" "${linux_path}")" + bootprefix="${linux_relpath%%"${linux}"}" + cmdline="root=${LINUX_ROOT_DEVICE} ro ${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" + + mkbls "${kernelver}" \ + "$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")" \ + "${bootprefix}" "${cmdline}" >"${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*$' ; then + if ! sed -i"${backupsuffix}" \ + -e 's,^GRUB_ENABLE_BLSCFG=.*,GRUB_ENABLE_BLSCFG=true,' \ + "${etcdefaultgrub}" ; then + gettext_printf "Updating %s failed\n" "${etcdefaultgrub}" + exit 1 + fi + GENERATE=1 +elif ! grep -q '^GRUB_ENABLE_BLSCFG=.*' "${etcdefaultgrub}" ; then + if ! echo 'GRUB_ENABLE_BLSCFG=true' >> "${etcdefaultgrub}" ; then + gettext_printf "Updating %s failed\n" "${etcdefaultgrub}" + exit 1 + fi + GENERATE=1 +fi + +if [ "${GENERATE}" -eq 1 ] ; then + copy_bls + + if [ $arch = "x86_64" ] && [ ! -d /sys/firmware/efi ]; then + mod_dir="i386-pc" + elif [ $arch = "ppc64" -o $arch = "ppc64le" ] && [ ! -d /sys/firmware/opal ]; then + mod_dir="powerpc-ieee1275" + fi + + if [ -n "${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 + fi + + cp -af "${GRUB_CONFIG_FILE}" "${GRUB_CONFIG_FILE}${backupsuffix}" + if ! grub2-mkconfig -o "${GRUB_CONFIG_FILE}" ; then + install -m 700 "${GRUB_CONFIG_FILE}${backupsuffix}" "${GRUB_CONFIG_FILE}" + sed -i"${backupsuffix}" \ + -e 's,^GRUB_ENABLE_BLSCFG=.*,GRUB_ENABLE_BLSCFG=false,' \ + "${etcdefaultgrub}" + gettext_printf "Updating %s failed\n" "${GRUB_CONFIG_FILE}" + exit 1 + fi +fi + +# Bye. +exit 0 diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in index 49eccbeaf..45eefb332 100644 --- a/util/grub.d/10_linux.in +++ b/util/grub.d/10_linux.in @@ -147,7 +147,7 @@ blsdir="/boot/loader/entries" get_sorted_bls() { - if ! [ -d "${blsdir}" ]; then + if ! [ -d "${blsdir}" ] || [ -f /run/ostree-booted ] || [ -d /ostree/repo ]; then return fi -- 2.44.0
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