From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Peter Jones Date: Fri, 9 Dec 2016 15:40:29 -0500 Subject: [PATCH] Add BLS support to grub-mkconfig GRUB now has BootLoaderSpec support, the user can choose to use this by setting GRUB_ENABLE_BLSCFG to true in /etc/default/grub. On this setup, the boot menu entries are not added to the grub.cfg, instead BLS config files are parsed by blscfg command and the entries created dynamically. A 10_linux_bls grub.d snippet to generate menu entries from BLS files is also added that can be used on platforms where the bootloader doesn't have BLS support and only can parse a normal grub configuration file. Portions of the 10_linux_bls were taken from the ostree-grub-generator script that's included in the OSTree project. Fixes to support multi-devices and generate a BLS section even if no kernels are found in the boot directory were proposed by Yclept Nemo and Tom Gundersen respectively. Signed-off-by: Peter Jones Signed-off-by: Javier Martinez Canillas --- Makefile.util.def | 7 + util/grub-mkconfig.8 | 4 + util/grub-mkconfig.in | 9 +- util/grub-mkconfig_lib.in | 20 +- util/grub.d/10_linux.in | 67 ++++++- util/grub.d/10_linux_bls.in | 478 ++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 580 insertions(+), 5 deletions(-) create mode 100644 util/grub.d/10_linux_bls.in diff --git a/Makefile.util.def b/Makefile.util.def index 2215cc759c0..a61613656d1 100644 --- a/Makefile.util.def +++ b/Makefile.util.def @@ -499,6 +499,13 @@ script = { condition = COND_HOST_LINUX; }; +script = { + name = '10_linux_bls'; + common = util/grub.d/10_linux_bls.in; + installdir = grubconf; + condition = COND_HOST_LINUX; +}; + script = { name = '10_xnu'; common = util/grub.d/10_xnu.in; diff --git a/util/grub-mkconfig.8 b/util/grub-mkconfig.8 index a2d1f577b9b..434fa4deda4 100644 --- a/util/grub-mkconfig.8 +++ b/util/grub-mkconfig.8 @@ -13,5 +13,9 @@ \fB--output\fR=\fIFILE\fR Write generated output to \fIFILE\fR. +.TP +\fB--no-grubenv-update\fR +Do not update variables in the grubenv file. + .SH SEE ALSO .BR "info grub" diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in index 4649e92eb0f..2601bdc0711 100644 --- a/util/grub-mkconfig.in +++ b/util/grub-mkconfig.in @@ -50,6 +50,8 @@ grub_get_kernel_settings="${sbindir}/@grub_get_kernel_settings@" export TEXTDOMAIN=@PACKAGE@ export TEXTDOMAINDIR="@localedir@" +export GRUB_GRUBENV_UPDATE="yes" + . "${pkgdatadir}/grub-mkconfig_lib" # Usage: usage @@ -59,6 +61,7 @@ usage () { gettext "Generate a grub config file"; echo echo print_option_help "-o, --output=$(gettext FILE)" "$(gettext "output generated config to FILE [default=stdout]")" + print_option_help "--no-grubenv-update" "$(gettext "do not update variables in the grubenv file")" print_option_help "-h, --help" "$(gettext "print this message and exit")" print_option_help "-v, --version" "$(gettext "print the version information and exit")" echo @@ -94,6 +97,9 @@ do --output=*) grub_cfg=`echo "$option" | sed 's/--output=//'` ;; + --no-grubenv-update) + GRUB_GRUBENV_UPDATE="no" + ;; -*) gettext_printf "Unrecognized option \`%s'\n" "$option" 1>&2 usage @@ -259,7 +265,8 @@ export GRUB_DEFAULT \ GRUB_OS_PROBER_SKIP_LIST \ GRUB_DISABLE_SUBMENU \ GRUB_DEFAULT_DTB \ - SUSE_BTRFS_SNAPSHOT_BOOTING + SUSE_BTRFS_SNAPSHOT_BOOTING \ + GRUB_ENABLE_BLSCFG if test "x${grub_cfg}" != "x"; then rm -f "${grub_cfg}.new" diff --git a/util/grub-mkconfig_lib.in b/util/grub-mkconfig_lib.in index b3aae534ddc..bc11df2bd84 100644 --- a/util/grub-mkconfig_lib.in +++ b/util/grub-mkconfig_lib.in @@ -30,6 +30,9 @@ fi if test "x$grub_file" = x; then grub_file="${bindir}/@grub_file@" fi +if test "x$grub_editenv" = x; then + grub_editenv="${bindir}/@grub_editenv@" +fi if test "x$grub_mkrelpath" = x; then grub_mkrelpath="${bindir}/@grub_mkrelpath@" fi @@ -125,8 +128,19 @@ EOF fi } +prepare_grub_to_access_device_with_variable () +{ + device_variable="$1" + shift + prepare_grub_to_access_device "$@" + unset "device_variable" +} + prepare_grub_to_access_device () { + if [ -z "$device_variable" ]; then + device_variable="root" + fi old_ifs="$IFS" IFS=' ' @@ -161,14 +175,14 @@ prepare_grub_to_access_device () # otherwise set root as per value in device.map. fs_hint="`"${grub_probe}" --device $@ --target=compatibility_hint`" if [ "x$fs_hint" != x ]; then - echo "set root='$fs_hint'" + echo "set ${device_variable}='$fs_hint'" fi if [ "x$GRUB_DISABLE_UUID" != "xtrue" ] && fs_uuid="`"${grub_probe}" --device $@ --target=fs_uuid 2> /dev/null`" ; then hints="`"${grub_probe}" --device $@ --target=hints_string 2> /dev/null`" || hints= echo "if [ x\$feature_platform_search_hint = xy ]; then" - echo " search --no-floppy --fs-uuid --set=root ${hints} ${fs_uuid}" + echo " search --no-floppy --fs-uuid --set=${device_variable} ${hints} ${fs_uuid}" echo "else" - echo " search --no-floppy --fs-uuid --set=root ${fs_uuid}" + echo " search --no-floppy --fs-uuid --set=${device_variable} ${fs_uuid}" echo "fi" fi IFS="$old_ifs" diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in index 5cab299dc08..301594a0c9e 100644 --- a/util/grub.d/10_linux.in +++ b/util/grub.d/10_linux.in @@ -82,6 +82,67 @@ case x"$GRUB_FS" in ;; esac +populate_header_warn() +{ +cat <$title" = x"$GRUB_ACTUAL_DEFAULT" ]; then @@ -224,6 +286,7 @@ is_top_level=true while [ "x$list" != "x" ] ; do linux=`version_find_latest $list` gettext_printf "Found linux image: %s\n" "$linux" >&2 + basename=`basename $linux` dirname=`dirname $linux` rel_dirname=`make_system_path_relative_to_its_root $dirname` @@ -262,7 +325,9 @@ while [ "x$list" != "x" ] ; do for i in ${initrd}; do initrd_display="${initrd_display} ${dirname}/${i}" done - gettext_printf "Found initrd image: %s\n" "$(echo $initrd_display)" >&2 + if [ "x${GRUB_ENABLE_BLSCFG}" != "xtrue" ]; then + gettext_printf "Found initrd image: %s\n" "$(echo $initrd_display)" >&2 + fi fi fdt= diff --git a/util/grub.d/10_linux_bls.in b/util/grub.d/10_linux_bls.in new file mode 100644 index 00000000000..1b7536435f1 --- /dev/null +++ b/util/grub.d/10_linux_bls.in @@ -0,0 +1,478 @@ +#! /bin/sh +set -e + +# grub-mkconfig helper script. +# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc. +# +# GRUB is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# GRUB is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GRUB. If not, see . + +prefix="@prefix@" +exec_prefix="@exec_prefix@" +datarootdir="@datarootdir@" + +. "$pkgdatadir/grub-mkconfig_lib" + +export TEXTDOMAIN=@PACKAGE@ +export TEXTDOMAINDIR="@localedir@" + +CLASS="--class gnu-linux --class gnu --class os --unrestricted" + +if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then + OS="$(eval $(grep PRETTY_NAME /etc/os-release) ; echo ${PRETTY_NAME})" + CLASS="--class $(eval $(grep '^ID_LIKE=\|^ID=' /etc/os-release) ; [ -n "${ID_LIKE}" ] && echo ${ID_LIKE} || echo ${ID}) ${CLASS}" +else + OS="${GRUB_DISTRIBUTOR}" + CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}" +fi + +# 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 + +case x"$GRUB_FS" in + xbtrfs) + if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ]; then + GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX} \${extra_cmdline}" + else + rootsubvol="`make_system_path_relative_to_its_root /`" + rootsubvol="${rootsubvol#/}" + if [ "x${rootsubvol}" != x ]; then + GRUB_CMDLINE_LINUX="rootflags=subvol=${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 + +mktitle () +{ + local title_type + local version + local OS_NAME + local OS_VERS + + title_type=$1 && shift + version=$1 && shift + + OS_NAME="$(eval $(grep ^NAME= /etc/os-release) ; echo ${NAME})" + OS_VERS="$(eval $(grep ^VERSION= /etc/os-release) ; echo ${VERSION})" + + case $title_type in + recovery) + title=$(printf '%s (%s) %s (recovery mode)' \ + "${OS_NAME}" "${version}" "${OS_VERS}") + ;; + *) + title=$(printf '%s (%s) %s' \ + "${OS_NAME}" "${version}" "${OS_VERS}") + ;; + esac + echo -n ${title} +} + +title_correction_code= + +populate_header_warn() +{ +cat <&2 + + files=($(for bls in ${blsdir}/*.conf ; do + if ! [[ -e "${bls}" ]] ; then + continue + fi + bls="${bls%.conf}" + bls="${bls##*/}" + echo "${bls}" + done | ${kernel_sort} | tac)) || : + + for bls in "${files[@]}" ; do + read_config "${blsdir}/${bls}.conf" + + menu="${menu}menuentry '${title}' --class ${grub_class} ${grub_arg} --id=${bls} {\n" + menu="${menu}\t linux ${linux} ${options}\n" + if [ -n "${initrd}" ] ; then + menu="${menu}\t initrd ${boot_prefix}${initrd}\n" + fi + menu="${menu}}\n\n" + done + # The printf command seems to be more reliable across shells for special character (\n, \t) evaluation + printf "$menu" +} + +linux_entry () +{ + os="$1" + version="$2" + type="$3" + isdebug="$4" + args="$5" + + if [ -z "$boot_device_id" ]; then + boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")" + fi + + if [ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]; then + if [ x$dirname = x/ ]; then + if [ -z "${prepare_root_cache}" ]; then + prepare_grub_to_access_device ${GRUB_DEVICE} + fi + else + if [ -z "${prepare_boot_cache}" ]; then + prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} + fi + fi + + if [ -d /sys/firmware/efi ]; then + bootefi_device="`${grub_probe} --target=device /boot/efi/`" + prepare_grub_to_access_device_with_variable boot ${bootefi_device} + else + boot_device="`${grub_probe} --target=device /boot/`" + prepare_grub_to_access_device_with_variable boot ${boot_device} + fi + + populate_header_warn + populate_menu + + if [ "x${GRUB_GRUBENV_UPDATE}" = "xyes" ]; then + blsdir="/boot/loader/entries" + [ -d "${blsdir}" ] && GRUB_BLS_FS="$(${grub_probe} --target=fs ${blsdir})" + if [ "x${GRUB_BLS_FS}" = "xbtrfs" ] || [ "x${GRUB_BLS_FS}" = "xzfs" ]; then + blsdir=$(make_system_path_relative_to_its_root "${blsdir}") + if [ "x${blsdir}" != "x/loader/entries" ] && [ "x${blsdir}" != "x/boot/loader/entries" ]; then + ${grub_editenv} - set blsdir="${blsdir}" + fi + fi + + ${grub_editenv} - set kernelopts="root=${linux_root_device_thisversion} ro ${args}" + if [ -n "${GRUB_EARLY_INITRD_LINUX_CUSTOM}" ]; then + ${grub_editenv} - set early_initrd="${GRUB_EARLY_INITRD_LINUX_CUSTOM}" + fi + fi + + exit 0 + fi + + if [ x$type != xsimple ] ; then + title=$(mktitle "$type" "$version") + if [ x"$title" = x"$GRUB_ACTUAL_DEFAULT" ] || [ x"Previous Linux versions>$title" = x"$GRUB_ACTUAL_DEFAULT" ]; then + replacement_title="$(echo "Advanced options for ${OS}" | sed 's,>,>>,g')>$(echo "$title" | sed 's,>,>>,g')" + quoted="$(echo "$GRUB_ACTUAL_DEFAULT" | grub_quote)" + title_correction_code="${title_correction_code}if [ \"x\$default\" = '$quoted' ]; then default='$(echo "$replacement_title" | grub_quote)'; fi;" + fi + if [ x$isdebug = xdebug ]; then + title="$title${GRUB_LINUX_DEBUG_TITLE_POSTFIX}" + fi + echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + else + echo "menuentry '$(echo "$os" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + fi + if [ x$type != xrecovery ] ; then + save_default_entry | grub_add_tab + fi + + # Use ELILO's generic "efifb" when it's known to be available. + # FIXME: We need an interface to select vesafb in case efifb can't be used. + if [ "x$GRUB_GFXPAYLOAD_LINUX" = x ]; then + echo " load_video" | sed "s/^/$submenu_indentation/" + if grep -qx "CONFIG_FB_EFI=y" "${config}" 2> /dev/null \ + && grep -qx "CONFIG_VT_HW_CONSOLE_BINDING=y" "${config}" 2> /dev/null; then + echo " set gfxpayload=keep" | sed "s/^/$submenu_indentation/" + fi + else + if [ "x$GRUB_GFXPAYLOAD_LINUX" != xtext ]; then + echo " load_video" | sed "s/^/$submenu_indentation/" + fi + echo " set gfxpayload=$GRUB_GFXPAYLOAD_LINUX" | sed "s/^/$submenu_indentation/" + fi + + echo " insmod gzio" | sed "s/^/$submenu_indentation/" + + if [ x$dirname = x/ ]; then + if [ -z "${prepare_root_cache}" ]; then + prepare_root_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE} | grub_add_tab)" + fi + printf '%s\n' "${prepare_root_cache}" | sed "s/^/$submenu_indentation/" + else + if [ -z "${prepare_boot_cache}" ]; then + prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)" + fi + printf '%s\n' "${prepare_boot_cache}" | sed "s/^/$submenu_indentation/" + fi + sed "s/^/$submenu_indentation/" << EOF + linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args} +EOF + if test -n "${initrd}" ; then + initrd_path= + for i in ${initrd}; do + initrd_path="${initrd_path} ${rel_dirname}/${i}" + done + sed "s/^/$submenu_indentation/" << EOF + initrd $(echo $initrd_path) +EOF + fi + if test -n "${fdt}" ; then + sed "s/^/$submenu_indentation/" << EOF + devicetree ${rel_dirname}/${fdt} +EOF + fi + sed "s/^/$submenu_indentation/" << EOF +} +EOF +} + +machine=`uname -m` +case "x$machine" in + xi?86 | xx86_64) + list= + for i in /boot/vmlinuz-* /vmlinuz-* /boot/kernel-* ; do + if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi + done ;; + *) + list= + for i in /boot/vmlinuz-* /boot/vmlinux-* /vmlinuz-* /vmlinux-* /boot/kernel-* ; do + if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi + done ;; +esac + +if [ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]; then + for i in /boot/ostree/*/vmlinuz-* ; do + if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi + done +fi + +case "$machine" in + i?86) GENKERNEL_ARCH="x86" ;; + mips|mips64) GENKERNEL_ARCH="mips" ;; + mipsel|mips64el) GENKERNEL_ARCH="mipsel" ;; + arm*) GENKERNEL_ARCH="arm" ;; + *) GENKERNEL_ARCH="$machine" ;; +esac + +prepare_boot_cache= +prepare_root_cache= +boot_device_id= +title_correction_code= + +# Extra indentation to add to menu entries in a submenu. We're not in a submenu +# yet, so it's empty. In a submenu it will be equal to '\t' (one tab). +submenu_indentation="" + +is_top_level=true +while [ "x$list" != "x" ] ; do + linux=`version_find_latest $list` + if [ "x${GRUB_ENABLE_BLSCFG}" != "xtrue" ]; then + gettext_printf "Found linux image: %s\n" "$linux" >&2 + fi + + basename=`basename $linux` + dirname=`dirname $linux` + rel_dirname=`make_system_path_relative_to_its_root $dirname` + version=`echo $basename | sed -e "s,^[^0-9]*-,,g"` + alt_version=`echo $version | sed -e "s,\.old$,,g"` + linux_root_device_thisversion="${LINUX_ROOT_DEVICE}" + + initrd_early= + for i in ${GRUB_EARLY_INITRD_LINUX_STOCK} \ + ${GRUB_EARLY_INITRD_LINUX_CUSTOM}; do + if test -e "${dirname}/${i}" ; then + initrd_early="${initrd_early} ${i}" + fi + done + + initrd_real= + for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \ + "initrd-${version}" "initramfs-${version}.img" \ + "initrd.img-${alt_version}" "initrd-${alt_version}.img" \ + "initrd-${alt_version}" "initramfs-${alt_version}.img" \ + "initramfs-genkernel-${version}" \ + "initramfs-genkernel-${alt_version}" \ + "initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \ + "initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do + if test -e "${dirname}/${i}" ; then + initrd_real="${i}" + break + fi + done + + initrd= + if test -n "${initrd_early}" || test -n "${initrd_real}"; then + initrd="${initrd_early} ${initrd_real}" + + initrd_display= + for i in ${initrd}; do + initrd_display="${initrd_display} ${dirname}/${i}" + done + if [ "x${GRUB_ENABLE_BLSCFG}" != "xtrue" ]; then + gettext_printf "Found initrd image: %s\n" "$(echo $initrd_display)" >&2 + fi + fi + + fdt= + for i in "dtb-${version}" "dtb-${alt_version}"; do + if test -f "${dirname}/${i}/${GRUB_DEFAULT_DTB}" ; then + fdt="${i}/${GRUB_DEFAULT_DTB}" + break + fi + done + + config= + for i in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do + if test -e "${i}" ; then + config="${i}" + break + fi + done + + initramfs= + if test -n "${config}" ; then + initramfs=`grep CONFIG_INITRAMFS_SOURCE= "${config}" | cut -f2 -d= | tr -d \"` + fi + + if test -z "${initramfs}" && test -z "${initrd_real}" ; then + # "UUID=" and "ZFS=" magic is parsed by initrd or initramfs. Since there's + # no initrd or builtin initramfs, it can't work here. + if [ "x${GRUB_DEVICE_PARTUUID}" = "x" ] \ + || [ "x${GRUB_DISABLE_LINUX_PARTUUID}" = "xtrue" ]; then + + linux_root_device_thisversion=${GRUB_DEVICE} + else + linux_root_device_thisversion=PARTUUID=${GRUB_DEVICE_PARTUUID} + fi + fi + + if [ "x${GRUB_DISABLE_SUBMENU}" = "xyes" ] || [ "x${GRUB_DISABLE_SUBMENU}" = "xy" ]; then + GRUB_DISABLE_SUBMENU="true" + fi + + if [ "x$is_top_level" = xtrue ] && [ "x${GRUB_DISABLE_SUBMENU}" != xtrue ]; then + linux_entry "${OS}" "${version}" simple standard \ + "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" + if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then + linux_entry "${OS}" "${version}" simple debug \ + "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT} ${GRUB_CMDLINE_LINUX_DEBUG}" + fi + + submenu_indentation="$grub_tab" + + if [ -z "$boot_device_id" ]; then + boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")" + fi + # TRANSLATORS: %s is replaced with an OS name + echo "submenu '$(gettext_printf "Advanced options for %s" "${OS}" | grub_quote)' \$menuentry_id_option 'gnulinux-advanced-$boot_device_id' {" + is_top_level=false + fi + + linux_entry "${OS}" "${version}" advanced standard \ + "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" + if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then + linux_entry "${OS}" "${version}" advanced debug \ + "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT} ${GRUB_CMDLINE_LINUX_DEBUG}" + fi + + if [ "x${GRUB_DISABLE_RECOVERY}" != "xtrue" ]; then + linux_entry "${OS}" "${version}" recovery standard \ + "single ${GRUB_CMDLINE_LINUX}" + fi + + list=`echo $list | tr ' ' '\n' | fgrep -vx "$linux" | tr '\n' ' '` +done + +# If at least one kernel was found, then we need to +# add a closing '}' for the submenu command. +if [ x"$is_top_level" != xtrue ]; then + echo '}' +fi + +echo "$title_correction_code"