[Fedora-livecd-list] shutting down f19-livecd corrups raid1

[Frederick Grose]

On Thu, Aug 8, 2013 at 6:15 PM, Joshua C. <joshuacov at gmail.com> wrote:

> My raid1 gets corrupted _everytime_ I shut down a
> f19-kde-livecd-image. I used kernel.f19 and mdadm.f19 in a f17-livecd
> and everything works fine. So these two are not the problem.
>
> What should I look at? maybe dracut???
>
> PS: Testing and experimenting isn't a good idea here because it takes
> almost 3 hours for the raid to rebuild...
>
> --
> --joshua


With Fedora-Live-Desktop-x86_64-19-1 installed to a vfat formatted Live USB
device, I find this report in /var/log/messages on each reboot:

Aug  8 17:24:09 localhost kernel: [    8.255350] FAT-fs (sdc1): Volume was
not properly unmounted. Some data may be corrupt. Please run fsck.
Aug  8 17:24:09 localhost kernel: [   11.052845] bio: create slab <bio-1>
at 1
Aug  8 17:24:09 localhost kernel: [   11.179108] EXT4-fs (dm-0): mounted
filesystem with ordered data mode. Opts: (null)

Once unmounted, fsck reports that the dirty bit is set:

[root at localhost ~]# fsck.vfat -rv /dev/sdc1
fsck.fat 3.0.22 (2013-07-19)
fsck.fat 3.0.22 (2013-07-19)
Checking we can access the last sector of the filesystem
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be
corrupt.
1) Remove dirty bit
2) No action
? 1
Boot sector contents:
System ID "SYSLINUX"
Media byte 0xf8 (hard disk)
       512 bytes per logical sector
      4096 bytes per cluster
        32 reserved sectors
First FAT starts at byte 16384 (sector 32)
         2 FATs, 32 bit entries
   7798784 bytes per FAT (= 15232 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 15613952 (sector 30496)
   1948715 data clusters (7981936640 bytes)
62 sectors/track, 247 heads
         0 hidden sectors
  15620218 sectors total
Checking for unused clusters.
Checking free cluster summary.
Perform changes ? (y/n) y
/dev/sdc1: 18 files, 644955/1948715 clusters

I wonder if this may be due to a Bash shell not getting properly shut down
during shutdown, as reported here,
http://lists.freedesktop.org/archives/systemd-devel/2013-July/012307.html

      --Fred
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