Blame SOURCES/0092-grub2-btrfs-05-grub2-mkconfig.patch

8631a2
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
8631a2
From: Michael Chang <mchang@suse.com>
8631a2
Date: Thu, 21 Aug 2014 03:39:11 +0000
8631a2
Subject: [PATCH] grub2-btrfs-05-grub2-mkconfig
8631a2
8631a2
---
8631a2
 util/grub-mkconfig.in       |  3 ++-
8631a2
 util/grub-mkconfig_lib.in   |  4 ++++
8631a2
 util/grub.d/00_header.in    | 24 +++++++++++++++++++++++-
8631a2
 util/grub.d/10_linux.in     |  4 ++++
8631a2
 util/grub.d/20_linux_xen.in |  4 ++++
8631a2
 5 files changed, 37 insertions(+), 2 deletions(-)
8631a2
8631a2
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
b32e65
index 8218f3d47..4248b9341 100644
8631a2
--- a/util/grub-mkconfig.in
8631a2
+++ b/util/grub-mkconfig.in
8631a2
@@ -258,7 +258,8 @@ export GRUB_DEFAULT \
8631a2
   GRUB_BADRAM \
8631a2
   GRUB_OS_PROBER_SKIP_LIST \
8631a2
   GRUB_DISABLE_SUBMENU \
8631a2
-  GRUB_DEFAULT_DTB
8631a2
+  GRUB_DEFAULT_DTB \
8631a2
+  SUSE_BTRFS_SNAPSHOT_BOOTING
8631a2
 
8631a2
 if test "x${grub_cfg}" != "x"; then
8631a2
   rm -f "${grub_cfg}.new"
8631a2
diff --git a/util/grub-mkconfig_lib.in b/util/grub-mkconfig_lib.in
b32e65
index 113a41f94..b3aae534d 100644
8631a2
--- a/util/grub-mkconfig_lib.in
8631a2
+++ b/util/grub-mkconfig_lib.in
8631a2
@@ -52,7 +52,11 @@ grub_warn ()
8631a2
 
8631a2
 make_system_path_relative_to_its_root ()
8631a2
 {
8631a2
+  if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] ; then
8631a2
+  "${grub_mkrelpath}" -r "$1"
8631a2
+  else
8631a2
   "${grub_mkrelpath}" "$1"
8631a2
+  fi
8631a2
 }
8631a2
 
8631a2
 is_path_readable_by_grub ()
8631a2
diff --git a/util/grub.d/00_header.in b/util/grub.d/00_header.in
b32e65
index 858b526c9..e2a533001 100644
8631a2
--- a/util/grub.d/00_header.in
8631a2
+++ b/util/grub.d/00_header.in
8631a2
@@ -27,6 +27,14 @@ export TEXTDOMAINDIR="@localedir@"
8631a2
 
8631a2
 . "$pkgdatadir/grub-mkconfig_lib"
8631a2
 
8631a2
+if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] &&
8631a2
+   [ "x${GRUB_FS}" = "xbtrfs" ] ; then
8631a2
+    cat <
8631a2
+set btrfs_relative_path="y"
8631a2
+export btrfs_relative_path
8631a2
+EOF
8631a2
+fi
8631a2
+
8631a2
 # Do this as early as possible, since other commands might depend on it.
8631a2
 # (e.g. the `loadfont' command might need lvm or raid modules)
8631a2
 for i in ${GRUB_PRELOAD_MODULES} ; do
8631a2
@@ -45,7 +53,9 @@ if [ "x${GRUB_TIMEOUT_BUTTON}" = "x" ] ; then GRUB_TIMEOUT_BUTTON="$GRUB_TIMEOUT
8631a2
 cat << EOF
8631a2
 set pager=1
8631a2
 
8631a2
-if [ -s \$prefix/grubenv ]; then
8631a2
+if [ -f \${config_directory}/grubenv ]; then
8631a2
+  load_env -f \${config_directory}/grubenv
8631a2
+elif [ -s \$prefix/grubenv ]; then
8631a2
   load_env
8631a2
 fi
8631a2
 EOF
8631a2
@@ -356,3 +366,15 @@ fi
8631a2
 if [ "x${GRUB_BADRAM}" != "x" ] ; then
8631a2
   echo "badram ${GRUB_BADRAM}"
8631a2
 fi
8631a2
+
8631a2
+if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] &&
8631a2
+   [ "x${GRUB_FS}" = "xbtrfs" ] ; then
8631a2
+    # Note: No $snapshot_num on *read-only* rollback!  (bsc#901487)
8631a2
+    cat <
8631a2
+if [ -n "\$extra_cmdline" ]; then
8631a2
+  submenu "Bootable snapshot #\$snapshot_num" {
8631a2
+    menuentry "If OK, run 'snapper rollback' and reboot." { true; }
8631a2
+  }
8631a2
+fi
8631a2
+EOF
8631a2
+fi
8631a2
diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
b32e65
index 4e49ccdf7..d9a05937e 100644
8631a2
--- a/util/grub.d/10_linux.in
8631a2
+++ b/util/grub.d/10_linux.in
8631a2
@@ -66,10 +66,14 @@ fi
8631a2
 
8631a2
 case x"$GRUB_FS" in
8631a2
     xbtrfs)
8631a2
+	if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ]; then
8631a2
+	GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX} \${extra_cmdline}"
8631a2
+	else
8631a2
 	rootsubvol="`make_system_path_relative_to_its_root /`"
8631a2
 	rootsubvol="${rootsubvol#/}"
8631a2
 	if [ "x${rootsubvol}" != x ]; then
8631a2
 	    GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
8631a2
+	fi
8631a2
 	fi;;
8631a2
     xzfs)
8631a2
 	rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
8631a2
diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
b32e65
index 972a4b5a0..bcdc3ceac 100644
8631a2
--- a/util/grub.d/20_linux_xen.in
8631a2
+++ b/util/grub.d/20_linux_xen.in
8631a2
@@ -73,10 +73,14 @@ fi
8631a2
 
8631a2
 case x"$GRUB_FS" in
8631a2
     xbtrfs)
8631a2
+	if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ]; then
8631a2
+	GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX} \${extra_cmdline}"
8631a2
+	else
8631a2
 	rootsubvol="`make_system_path_relative_to_its_root /`"
8631a2
 	rootsubvol="${rootsubvol#/}"
8631a2
 	if [ "x${rootsubvol}" != x ]; then
8631a2
 	    GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
8631a2
+	fi
8631a2
 	fi;;
8631a2
     xzfs)
8631a2
 	rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`