grub2/0177-grub2-btrfs-05-grub2-mkconfig.patch
Javier Martinez Canillas db7cf3a089
More fixes for BLS
Add some fixes for BLS parsing logic and also make 20-grub.install script
to query the relative path of the kernel and initramfs images, so BLS can
also work when /boot is not a mount point or is a btrfs subvolume.

Also pull some build fixes.

Resolves: rhbz#1588184

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2018-06-07 19:02:21 +02:00

130 lines
3.9 KiB
Diff

From cb43e7a6c96127e72d6787c6063de8911284fe18 Mon Sep 17 00:00:00 2001
From: Michael Chang <mchang@suse.com>
Date: Thu, 21 Aug 2014 03:39:11 +0000
Subject: [PATCH 177/243] grub2-btrfs-05-grub2-mkconfig
---
util/grub-mkconfig.in | 3 ++-
util/grub-mkconfig_lib.in | 4 ++++
util/grub.d/00_header.in | 24 +++++++++++++++++++++++-
util/grub.d/10_linux.in | 4 ++++
util/grub.d/20_linux_xen.in | 4 ++++
5 files changed, 37 insertions(+), 2 deletions(-)
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
index e32de5ef361..3b0bfe40308 100644
--- a/util/grub-mkconfig.in
+++ b/util/grub-mkconfig.in
@@ -239,7 +239,8 @@ export GRUB_DEFAULT \
GRUB_BADRAM \
GRUB_OS_PROBER_SKIP_LIST \
GRUB_DISABLE_SUBMENU \
- GRUB_DEFAULT_DTB
+ GRUB_DEFAULT_DTB \
+ SUSE_BTRFS_SNAPSHOT_BOOTING
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 9c410eae493..2fb4f4f8143 100644
--- a/util/grub-mkconfig_lib.in
+++ b/util/grub-mkconfig_lib.in
@@ -52,7 +52,11 @@ grub_warn ()
make_system_path_relative_to_its_root ()
{
+ if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] ; then
+ "${grub_mkrelpath}" -r "$1"
+ else
"${grub_mkrelpath}" "$1"
+ fi
}
is_path_readable_by_grub ()
diff --git a/util/grub.d/00_header.in b/util/grub.d/00_header.in
index 858b526c925..e2a53300126 100644
--- a/util/grub.d/00_header.in
+++ b/util/grub.d/00_header.in
@@ -27,6 +27,14 @@ export TEXTDOMAINDIR="@localedir@"
. "$pkgdatadir/grub-mkconfig_lib"
+if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] &&
+ [ "x${GRUB_FS}" = "xbtrfs" ] ; then
+ cat <<EOF
+set btrfs_relative_path="y"
+export btrfs_relative_path
+EOF
+fi
+
# Do this as early as possible, since other commands might depend on it.
# (e.g. the `loadfont' command might need lvm or raid modules)
for i in ${GRUB_PRELOAD_MODULES} ; do
@@ -45,7 +53,9 @@ if [ "x${GRUB_TIMEOUT_BUTTON}" = "x" ] ; then GRUB_TIMEOUT_BUTTON="$GRUB_TIMEOUT
cat << EOF
set pager=1
-if [ -s \$prefix/grubenv ]; then
+if [ -f \${config_directory}/grubenv ]; then
+ load_env -f \${config_directory}/grubenv
+elif [ -s \$prefix/grubenv ]; then
load_env
fi
EOF
@@ -356,3 +366,15 @@ fi
if [ "x${GRUB_BADRAM}" != "x" ] ; then
echo "badram ${GRUB_BADRAM}"
fi
+
+if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] &&
+ [ "x${GRUB_FS}" = "xbtrfs" ] ; then
+ # Note: No $snapshot_num on *read-only* rollback! (bsc#901487)
+ cat <<EOF
+if [ -n "\$extra_cmdline" ]; then
+ submenu "Bootable snapshot #\$snapshot_num" {
+ menuentry "If OK, run 'snapper rollback' and reboot." { true; }
+ }
+fi
+EOF
+fi
diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
index c9bf223f273..7e78ad33636 100644
--- a/util/grub.d/10_linux.in
+++ b/util/grub.d/10_linux.in
@@ -56,10 +56,14 @@ fi
case x"$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 ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index 54f1ec8a2fd..462f8e1f819 100644
--- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in
@@ -63,10 +63,14 @@ fi
case x"$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`
--
2.17.1