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grub2/0112-Add-BLS-support-to-grub-mkconfig.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
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, 56 insertions(+), 13 deletions(-)
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
index 4248b9341..c20171919 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 b3aae534d..1acc1d01c 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 d9a05937e..839f1fdb6 100644
--- a/util/grub.d/10_linux.in
+++ b/util/grub.d/10_linux.in
@@ -121,6 +121,34 @@ 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"$GRUB_ACTUAL_DEFAULT" ]; then
@@ -223,7 +251,10 @@ submenu_indentation=""
is_top_level=true
while [ "x$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 $dirname`
@@ -262,7 +293,9 @@ while [ "x$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=
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