|
 |
a85e8e |
From f1edaeeeffdfc291e0b17d87f8727baaecbfaf63 Mon Sep 17 00:00:00 2001
|
|
|
a85e8e |
From: Don Zickus <dzickus@redhat.com>
|
|
|
a85e8e |
Date: Wed, 22 Jul 2015 13:59:55 -0400
|
|
|
a85e8e |
Subject: [PATCH 180/260] ppc64le sync mkconfig to disk (#1212114)
|
|
|
a85e8e |
|
|
|
a85e8e |
If creating a new grub2 entry using grub2-mkconfig, the entry is not
|
|
|
a85e8e |
immediately sync'd to disk. If a crash happens before the writeback,
|
|
|
a85e8e |
the subsequent reboot fails because the grub2.cfg is corrupted.
|
|
|
a85e8e |
|
|
|
a85e8e |
Address this by forcing all the changes (mainly the fs meta data) to disk
|
|
|
a85e8e |
before finishing the grub2 conf changes.
|
|
|
a85e8e |
|
|
|
a85e8e |
Tested by 'grub2-mkconfig -o /etc/grub22.cfg; echo c > /proc/sysrq-trigger'.
|
|
|
a85e8e |
|
|
|
a85e8e |
Before, the machine would panic and on reboot be stuck without a grub.cfg
|
|
|
a85e8e |
to read. After, works as expected.
|
|
|
a85e8e |
|
|
|
a85e8e |
Resolves: rhbz#1212114
|
|
|
a85e8e |
---
|
|
|
a85e8e |
util/grub-mkconfig.in | 9 +++++++++
|
|
|
a85e8e |
1 file changed, 9 insertions(+)
|
|
|
a85e8e |
|
|
|
a85e8e |
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
|
|
|
a85e8e |
index e029d0d5e..cf315e241 100644
|
|
|
a85e8e |
--- a/util/grub-mkconfig.in
|
|
|
a85e8e |
+++ b/util/grub-mkconfig.in
|
|
|
a85e8e |
@@ -290,3 +290,12 @@ fi
|
|
|
a85e8e |
|
|
|
a85e8e |
gettext "done" >&2
|
|
|
a85e8e |
echo >&2
|
|
|
a85e8e |
+
|
|
|
a85e8e |
+# make sure changes make it to the disk.
|
|
|
a85e8e |
+# if /boot is a mountpoint, force the meta data on disk
|
|
|
a85e8e |
+# to by-pass writeback delay.
|
|
|
a85e8e |
+# PPC64LE-only to deal with Petitboot issues
|
|
|
a85e8e |
+ARCH=$(uname -m)
|
|
|
a85e8e |
+if [ "${ARCH}" = "ppc64le" ]; then
|
|
|
a85e8e |
+ sync && mountpoint -q /boot &&fsfreeze -f /boot && fsfreeze -u /boot
|
|
|
a85e8e |
+fi
|
|
|
a85e8e |
--
|
|
|
a85e8e |
2.13.0
|
|
|
a85e8e |
|