From 7de48355c3f9494c2394aefa5e5ad88f53ea06ef 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. --- util/grub-mkconfig.in | 3 ++- util/grub-mkconfig_lib.in | 29 +++++++++++++++++++---------- util/grub.d/10_linux.in | 37 ++++++++++++++++++++++++++++++++++++- 3 files changed, 57 insertions(+), 12 deletions(-) diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in index 4248b9341ab..c20171919d9 100644 --- a/util/grub-mkconfig.in +++ b/util/grub-mkconfig.in @@ -259,7 +259,8 @@ 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..1acc1d01c39 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 @@ -127,10 +130,16 @@ EOF prepare_grub_to_access_device () { + local device=$1 && shift + if [ "$#" -gt 0 ]; then + local variable=$1 && shift + else + local variable=root + fi old_ifs="$IFS" IFS=' ' - partmap="`"${grub_probe}" --device $@ --target=partmap`" + partmap="`"${grub_probe}" --device ${device} --target=partmap`" for module in ${partmap} ; do case "${module}" in netbsd | openbsd) @@ -141,34 +150,34 @@ prepare_grub_to_access_device () done # Abstraction modules aren't auto-loaded. - abstraction="`"${grub_probe}" --device $@ --target=abstraction`" + abstraction="`"${grub_probe}" --device ${device} --target=abstraction`" for module in ${abstraction} ; do echo "insmod ${module}" done - fs="`"${grub_probe}" --device $@ --target=fs`" + fs="`"${grub_probe}" --device ${device} --target=fs`" for module in ${fs} ; do echo "insmod ${module}" done if [ x$GRUB_ENABLE_CRYPTODISK = xy ]; then - for uuid in `"${grub_probe}" --device $@ --target=cryptodisk_uuid`; do + for uuid in `"${grub_probe}" --device ${device} --target=cryptodisk_uuid`; do echo "cryptomount -u $uuid" done fi # If there's a filesystem UUID that GRUB is capable of identifying, use it; # otherwise set root as per value in device.map. - fs_hint="`"${grub_probe}" --device $@ --target=compatibility_hint`" + fs_hint="`"${grub_probe}" --device ${device} --target=compatibility_hint`" if [ "x$fs_hint" != x ]; then - echo "set root='$fs_hint'" + echo "set ${variable}='$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 $@ --target=hints_string 2> /dev/null`" || hints= + if [ "x$GRUB_DISABLE_UUID" != "xtrue" ] && fs_uuid="`"${grub_probe}" --device ${device} --target=fs_uuid 2> /dev/null`" ; then + hints="`"${grub_probe}" --device ${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} ${fs_uuid}" + echo " search --no-floppy --fs-uuid --set=${variable} ${hints} ${fs_uuid}" echo "else" - echo " search --no-floppy --fs-uuid --set=root ${fs_uuid}" + echo " search --no-floppy --fs-uuid --set=${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 69415af69b2..aec1ca3eba0 100644 --- a/util/grub.d/10_linux.in +++ b/util/grub.d/10_linux.in @@ -135,6 +135,34 @@ linux_entry () 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 ${GRUB_DEVICE_BOOT} + fi + fi + + bootefi_device="`${grub_probe} --target=device /boot/efi/`" + prepare_grub_to_access_device ${bootefi_device} boot + + cat << EOF +insmod blscfg +blscfg +if [ -s \$prefix/grubenv ]; then + load_env +fi +EOF + + ${grub_editenv} - set kernelopts="root=${linux_root_device_thisversion} ro ${args}" + + exit 0 + fi + if [ x$type != xsimple ] ; then title=$(mktitle "$type" "$version") if [ x"$title" = x"$GRUB_ACTUAL_DEFAULT" ] || [ x"Previous Linux versions>$title" = x"$GRUB_ACTUAL_DEFAULT" ]; then @@ -239,7 +267,10 @@ submenu_indentation="" is_top_level=true while [ "x$list" != "x" ] ; do linux=`version_find_latest $list` - gettext_printf "Found linux image: %s\n" "$linux" >&2 + 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 $dirname` @@ -303,6 +334,10 @@ while [ "x$list" != "x" ] ; do fi if test -z "${initramfs}" && test -z "${initrd_real}" ; then + if [ "x${GRUB_ENABLE_BLSCFG}" != "xtrue" ]; then + gettext_printf "Found initrd image: %s\n" "${dirname}/${initramfs}" >&2 + fi + elif test -z "${initramfs}" ; 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" ] \