--- Begin Message ---
Package: live-config
Version: 3.0.5-1
Severity: grave
Tags: patch
Hi
Persistence filesystems have to be remounted readonly on shutdown or
reboot to avoid data corruption. The attached patch fixes this problem.
The commit message contains more details.
I set the severity to grave as this should be fixed before wheezy as it
can lead to data corruption.
Gaudenz
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (800, 'testing'), (700, 'unstable'), (50, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.5-trunk-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_CH.UTF-8, LC_CTYPE=de_CH.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
>From 4579aadaf3ae7af7d4a8c6ba67fb1c6d93a4fa0d Mon Sep 17 00:00:00 2001
From: Gaudenz Steinlin <gaudenz@debian.org>
Date: Tue, 25 Sep 2012 18:21:40 +0200
Subject: [PATCH] Remount persistence filesystem readonly on shutdown
All filesystems belonging to a persistence layer must be remounted
readonly to avoid data corruption. The filesystems cannot be unmounted
because they are still in use by the union mount. The sync call ensures
that all data is written to disk before shutdown or reboot. Remounting
by itself does not sync data to disk.
This code does not abort if remounting fails. We can't do much about
it anywhy at this stage.
---
bin/boot-init.sh | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/bin/boot-init.sh b/bin/boot-init.sh
index ba99107..a500dff 100755
--- a/bin/boot-init.sh
+++ b/bin/boot-init.sh
@@ -154,7 +154,19 @@ do
cache_path "${path}"
done
-mount -o remount,ro /live/overlay > /dev/null 2>&1
+mount -o remount,ro /live/overlay > /dev/null 2>&1 || true
+
+# remount all persistency mounts read only
+if [ -d /live/persistence ]
+then
+ for mp in $(ls /live/persistence)
+ do
+ mount -o remount,ro /live/persistence/${mp} > /dev/null 2>&1 || true
+ done
+
+ # sync all data to disk to make sure persistency is in a consistent state
+ sync
+fi
# Check if we need to eject the drive
if grep -qs "cdrom-detect/eject=false" /proc/cmdline || \
--
1.7.10.4
--- End Message ---
--- Begin Message ---
Source: live-config
Source-Version: 3.0.6-1
We believe that the bug you reported is fixed in the latest version of
live-config, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 688784@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Daniel Baumann <daniel@debian.org> (supplier of updated live-config package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.8
Date: Wed, 26 Sep 2012 14:26:00 +0200
Source: live-config
Binary: live-config live-config-doc live-config-systemd live-config-sysvinit live-config-upstart
Architecture: source all
Version: 3.0.6-1
Distribution: unstable
Urgency: low
Maintainer: Debian Live Project <debian-live@lists.debian.org>
Changed-By: Daniel Baumann <daniel@debian.org>
Description:
live-config - Debian Live - System Configuration Scripts
live-config-doc - Debian Live - System Configuration Scripts (documentation)
live-config-systemd - Debian Live - System Configuration Scripts (systemd backend)
live-config-sysvinit - Debian Live - System Configuration Scripts (sysvinit backend)
live-config-upstart - Debian Live - System Configuration Scripts (upstart backend)
Closes: 688784
Changes:
live-config (3.0.6-1) unstable; urgency=low
.
* Synchronise gdm and gdm3 scripts.
* Remounting any persistence devices read-only on shutdown (Closes:
#688784).
* Flushing filesystem buffers on shutdown.
Checksums-Sha1:
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0c29432a99b727f44f353fa3dd648da56c1af8d6 47300 live-config-doc_3.0.6-1_all.deb
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Files:
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22e46ed28f983a752b775d9d759b3c54 11990 misc optional live-config-systemd_3.0.6-1_all.deb
bffa03022b2b4a38b02b7bf57eac5f0a 13270 misc optional live-config-sysvinit_3.0.6-1_all.deb
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--- End Message ---