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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Thu, 21 Aug 2014 03:39:11 +0000
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Subject: [PATCH] grub2-btrfs-05-grub2-mkconfig
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---
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util/grub-mkconfig.in | 3 ++-
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util/grub-mkconfig_lib.in | 4 ++++
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util/grub.d/00_header.in | 24 +++++++++++++++++++++++-
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util/grub.d/10_linux.in | 4 ++++
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util/grub.d/20_linux_xen.in | 4 ++++
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5 files changed, 37 insertions(+), 2 deletions(-)
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diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
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index 8218f3d477f..4248b9341ab 100644
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--- a/util/grub-mkconfig.in
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+++ b/util/grub-mkconfig.in
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@@ -258,7 +258,8 @@ export GRUB_DEFAULT \
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GRUB_BADRAM \
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GRUB_OS_PROBER_SKIP_LIST \
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GRUB_DISABLE_SUBMENU \
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- GRUB_DEFAULT_DTB
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+ GRUB_DEFAULT_DTB \
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+ SUSE_BTRFS_SNAPSHOT_BOOTING
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if test "x${grub_cfg}" != "x"; then
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rm -f "${grub_cfg}.new"
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diff --git a/util/grub-mkconfig_lib.in b/util/grub-mkconfig_lib.in
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index 113a41f9409..b3aae534ddc 100644
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--- a/util/grub-mkconfig_lib.in
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+++ b/util/grub-mkconfig_lib.in
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@@ -52,7 +52,11 @@ grub_warn ()
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make_system_path_relative_to_its_root ()
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{
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+ if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] ; then
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+ "${grub_mkrelpath}" -r "$1"
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+ else
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"${grub_mkrelpath}" "$1"
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+ fi
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}
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is_path_readable_by_grub ()
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diff --git a/util/grub.d/00_header.in b/util/grub.d/00_header.in
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index 858b526c925..e2a53300126 100644
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--- a/util/grub.d/00_header.in
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+++ b/util/grub.d/00_header.in
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@@ -27,6 +27,14 @@ export TEXTDOMAINDIR="@localedir@"
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. "$pkgdatadir/grub-mkconfig_lib"
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+if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] &&
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+ [ "x${GRUB_FS}" = "xbtrfs" ] ; then
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+ cat <
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+set btrfs_relative_path="y"
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+export btrfs_relative_path
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+EOF
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+fi
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+
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# Do this as early as possible, since other commands might depend on it.
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# (e.g. the `loadfont' command might need lvm or raid modules)
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for i in ${GRUB_PRELOAD_MODULES} ; do
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@@ -45,7 +53,9 @@ if [ "x${GRUB_TIMEOUT_BUTTON}" = "x" ] ; then GRUB_TIMEOUT_BUTTON="$GRUB_TIMEOUT
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cat << EOF
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set pager=1
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-if [ -s \$prefix/grubenv ]; then
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+if [ -f \${config_directory}/grubenv ]; then
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+ load_env -f \${config_directory}/grubenv
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+elif [ -s \$prefix/grubenv ]; then
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load_env
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fi
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EOF
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@@ -356,3 +366,15 @@ fi
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if [ "x${GRUB_BADRAM}" != "x" ] ; then
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echo "badram ${GRUB_BADRAM}"
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fi
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+
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+if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ] &&
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+ [ "x${GRUB_FS}" = "xbtrfs" ] ; then
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+ # Note: No $snapshot_num on *read-only* rollback! (bsc#901487)
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+ cat <
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+if [ -n "\$extra_cmdline" ]; then
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+ submenu "Bootable snapshot #\$snapshot_num" {
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+ menuentry "If OK, run 'snapper rollback' and reboot." { true; }
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+ }
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+fi
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+EOF
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+fi
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diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
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index 4e49ccdf742..d9a05937e46 100644
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--- a/util/grub.d/10_linux.in
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+++ b/util/grub.d/10_linux.in
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@@ -66,10 +66,14 @@ fi
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case x"$GRUB_FS" in
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xbtrfs)
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+ if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ]; then
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+ GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX} \${extra_cmdline}"
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+ else
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rootsubvol="`make_system_path_relative_to_its_root /`"
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rootsubvol="${rootsubvol#/}"
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if [ "x${rootsubvol}" != x ]; then
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GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
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+ fi
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fi;;
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xzfs)
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rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
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diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
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index 972a4b5a03d..bcdc3ceac02 100644
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--- a/util/grub.d/20_linux_xen.in
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+++ b/util/grub.d/20_linux_xen.in
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@@ -73,10 +73,14 @@ fi
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case x"$GRUB_FS" in
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xbtrfs)
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+ if [ "x${SUSE_BTRFS_SNAPSHOT_BOOTING}" = "xtrue" ]; then
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+ GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX} \${extra_cmdline}"
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+ else
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rootsubvol="`make_system_path_relative_to_its_root /`"
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rootsubvol="${rootsubvol#/}"
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if [ "x${rootsubvol}" != x ]; then
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GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
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+ fi
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fi;;
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xzfs)
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rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
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