Your message dated Mon, 27 Jul 2009 01:36:46 +0200
with message-id <20090726233646.ga30...@galadriel.inutil.org>
and subject line Re: Bug#402710: Loop mount of XFS on DVD-RW fails on Debian,
works on SUSE
has caused the Debian Bug report #402710,
regarding Loop mount of XFS on DVD-RW fails on Debian, works on SUSE
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
402710: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=402710
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: loop-aes-utils
Version: 2.12r-14
Severity: important
A mountable encrypted dvd image cannot be mounted after burned to dvd.
i CREATED A DVD IMAGE
dd if=/dev/zero of=/mnt/hda7/iso/xfs_dvd_f9.raw bs=1M count=4482
THEN
losetup -e AES256 /dev/loop0 /mnt/hda7/iso/xfs_dvd_f9.raw
CREATED A FILESYSTEM
mkfs.xfs /dev/loop0
MOUNTED AND FILLED WITH DATA
Debian Etch uname -a:
Linux prometheus 2.6.17-2-k7 #1 SMP Wed Sep 13 17:18:46 UTC 2006 i686 GNU/Linux
prometheus:/mnt/hda7/iso# mount -vv -o loop,encryption=AES256 ./xfs_dvd_f9.raw
./mounted/
mount: going to use the loop device /dev/loop/0
Password:
set_loop(/dev/loop/0,./xfs_dvd_f9.raw): success
mount: setup loop device successfully
mount: you didn't specify a filesystem type for /dev/loop/0
I will try type xfs
/mnt/hda7/iso/xfs_dvd_f9.raw on /mnt/hda7/iso/mounted type xfs
(rw,loop=/dev/loop/0,encryption=AES256)
prometheus:/mnt/hda7/iso#
/var/log/messages:
Dec 10 19:53:57 localhost kernel: Linux version 2.6.17-2-k7 (Debian 2.6.17-9)
(wa...@debian.org) (gcc version 4.1.2 20060901 (prerelease) (Debian
4.1.1-13)) #1 SMP Wed Sep 13 17:18:46 UTC 2006
Dec 10 20:01:01 localhost kernel: SGI XFS with ACLs, security attributes,
realtime, large block numbers, no debug enabled
Dec 10 20:01:01 localhost kernel: SGI XFS Quota Management subsystem
Dec 10 20:01:01 localhost kernel: XFS mounting filesystem hda7
Dec 10 20:01:43 localhost kernel: loop: AES key scrubbing enabled
Dec 10 20:01:43 localhost kernel: loop: loaded (max 8 devices)
Dec 10 20:01:52 localhost kernel: Filesystem "loop0": Disabling barriers, not
supported by the underlying device
Dec 10 20:01:53 localhost kernel: XFS mounting filesystem loop0
BURNED TO DVD
growisofs -speed=4 -Z /dev/hdc=/mnt/hda7/iso/xfs_dvd_f9.raw
BUT FAILS TO MOUNT HTE BURNED DVD
prometheus:/home/toni# mount -vv -o loop,encryption=AES256 /dev/hdc
/media/cdrom0/
mount: going to use the loop device /dev/loop0
Password:
set_loop(/dev/loop0,/dev/hdc): success
mount: setup loop device successfully
mount: you didn't specify a filesystem type for /dev/loop0
I will try type xfs
del_loop(/dev/loop0): success
mount: Function not implemented
/var/log/messages:
Dec 10 19:08:49 localhost kernel: Unable to identify CD-ROM format.
Dec 10 19:09:32 localhost kernel: loop: AES key scrubbing enabled
Dec 10 19:09:32 localhost kernel: loop: loaded (max 8 devices)
Dec 10 19:09:42 localhost kernel: SGI XFS with ACLs, security attributes,
realtime, large block numbers, no debug enabled
Dec 10 19:09:42 localhost kernel: SGI XFS Quota Management subsystem
IT CANNOT BE MOUNTED NEITHER WITH KERNEL 2.6.18-3-K7
-- System Information:
Debian Release: 4.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-k7
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages loop-aes-utils depends on:
ii gnupg 1.4.6-1 GNU privacy guard - a free PGP rep
ii libblkid 1.39+1.40-WIP-2006.11.14+dfsg-1 block device id library
ii libc6 2.3.6.ds1-8 GNU C Library: Shared libraries
ii libuuid1 1.39+1.40-WIP-2006.11.14+dfsg-1 universally unique id library
ii mount 2.12r-15 Tools for mounting and manipulatin
Versions of packages loop-aes-utils recommends:
ii sharutils 1:4.2.1-15 shar, unshar, uuencode, uudecode
-- no debconf information
--- End Message ---
--- Begin Message ---
On Wed, Dec 17, 2008 at 08:50:10PM +0100, Moritz Muehlenhoff wrote:
> On Sun, Mar 18, 2007 at 12:03:45PM +0100, Max Vozeler wrote:
> > reassign 402710 linux-2.6
> > retitle 402710 Loop mount of XFS on DVD-RW fails on Debian, works on SUSE
> > thanks
> >
> > Hi kernel team, hi Kosza,
> >
> > This bug is about a problem Kosza experienced when trying to loop
> > mount an XFS filesystem stored on DVD-RW. This works correctly on
> > SUSE 10.0 but fails on Debian 2.6.17-2. Summarizing what I think
> > we have found out so far:
> >
> > - DVD has a fixed block size of 2048 bytes
> > - mkfs.xfs created a filesystem with block size of 4096 bytes
> > - Debian kernel (2.6.17) is unable to loop mount it from the DVD
> > - SUSE 10.0 kernel (2.6.13 ?) is able to loop mount it
> > - Encryption makes no difference
> >
> > This suggests that an unknown difference exists between the SUSE
> > and Debian kernels. I'm not sure where to start looking for this;
> > perhaps someone on the kernel team can suggest how to continue.
> >
> > If my understanding of the problem is correct, you should be able
> > to work around this problem by telling mkfs.xfs to create the
> > filesystem with a block size that matches the block size of the
> > DVD (something like mkfs.xfs -b 2048 /dev/loop0).
>
> Kosza, does this error still occur with more recent kernel versions?
No further feedback, closing the bug.
If anyone reencounters the problem, please reopen this bug.
Cheers,
Moritz
--- End Message ---