|
 |
ecb9bb |
From f1edaeeeffdfc291e0b17d87f8727baaecbfaf63 Mon Sep 17 00:00:00 2001
|
|
|
ecb9bb |
From: Don Zickus <dzickus@redhat.com>
|
|
|
ecb9bb |
Date: Wed, 22 Jul 2015 13:59:55 -0400
|
|
|
23d2ea |
Subject: [PATCH 180/198] ppc64le sync mkconfig to disk (#1212114)
|
|
|
ecb9bb |
|
|
|
ecb9bb |
If creating a new grub2 entry using grub2-mkconfig, the entry is not
|
|
|
ecb9bb |
immediately sync'd to disk. If a crash happens before the writeback,
|
|
|
ecb9bb |
the subsequent reboot fails because the grub2.cfg is corrupted.
|
|
|
ecb9bb |
|
|
|
ecb9bb |
Address this by forcing all the changes (mainly the fs meta data) to disk
|
|
|
ecb9bb |
before finishing the grub2 conf changes.
|
|
|
ecb9bb |
|
|
|
ecb9bb |
Tested by 'grub2-mkconfig -o /etc/grub22.cfg; echo c > /proc/sysrq-trigger'.
|
|
|
ecb9bb |
|
|
|
ecb9bb |
Before, the machine would panic and on reboot be stuck without a grub.cfg
|
|
|
ecb9bb |
to read. After, works as expected.
|
|
|
ecb9bb |
|
|
|
ecb9bb |
Resolves: rhbz#1212114
|
|
|
ecb9bb |
---
|
|
|
ecb9bb |
util/grub-mkconfig.in | 9 +++++++++
|
|
|
ecb9bb |
1 file changed, 9 insertions(+)
|
|
|
ecb9bb |
|
|
|
ecb9bb |
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
|
|
|
ecb9bb |
index e029d0d..cf315e2 100644
|
|
|
ecb9bb |
--- a/util/grub-mkconfig.in
|
|
|
ecb9bb |
+++ b/util/grub-mkconfig.in
|
|
|
ecb9bb |
@@ -290,3 +290,12 @@ fi
|
|
|
ecb9bb |
|
|
|
ecb9bb |
gettext "done" >&2
|
|
|
ecb9bb |
echo >&2
|
|
|
ecb9bb |
+
|
|
|
ecb9bb |
+# make sure changes make it to the disk.
|
|
|
ecb9bb |
+# if /boot is a mountpoint, force the meta data on disk
|
|
|
ecb9bb |
+# to by-pass writeback delay.
|
|
|
ecb9bb |
+# PPC64LE-only to deal with Petitboot issues
|
|
|
ecb9bb |
+ARCH=$(uname -m)
|
|
|
ecb9bb |
+if [ "${ARCH}" = "ppc64le" ]; then
|
|
|
ecb9bb |
+ sync && mountpoint -q /boot &&fsfreeze -f /boot && fsfreeze -u /boot
|
|
|
ecb9bb |
+fi
|
|
|
ecb9bb |
--
|
|
|
23d2ea |
2.7.4
|
|
|
ecb9bb |
|