Mailinglist Archive: opensuse (1528 mails)

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Re: [opensuse] ReiserFS partitions recognized as Ext3. How to recover?
  • From: Mike McMullin <mwmcmlln@xxxxxxxx>
  • Date: Sat, 06 Feb 2010 18:27:29 -0500
  • Message-id: <1265498849.27346.2.camel@xxxxxxxxxxxxxxxxxxxxx>
On Sat, 2010-02-06 at 14:25 +0200, Mark Goldstein wrote:
On Sat, Feb 6, 2010 at 1:20 PM, Mike McMullin <mwmcmlln@xxxxxxxx> wrote:
On Fri, 2010-02-05 at 21:12 +0100, Carlos E. R. wrote:
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On Friday, 2010-02-05 at 21:36 +0200, Mark Goldstein wrote:

...
Now I tried reiserfsck on sda8 and it reported no superblock present.
I tried to re-create it and re-check and reiserfsck now complained

If you try to repair them as reiserfs, you will utterly destroy them, as
they are not reiserfs. If you want them as reiser, reformat, and copy the
data back.

Unless you have more disks or more partitions and you didn't know. Or a
filesystem loop mounted on top of another, but that needs some doing.

Wonder what's in /etc/fstab.

Now you've got me ashamed...
/etc/fstab says it's ext3. And it is dated by June 2008 - when I installed
11.0.
It looks like not just memory blackout, but rather sclerosis...

I also looked through /var/log/messages and saw this fragment:

Feb 3 18:36:37 dadpc kernel: Pid: 15, comm: kswapd0 Tainted: P
N (2.6.25.20-0.5-pae #1)
Feb 3 18:36:37 dadpc kernel: EIP: 0060:[<c019622d>] EFLAGS: 00010283 CPU: 0
Feb 3 18:36:37 dadpc kernel: EIP is at free_buffer_head+0xd/0x31
Feb 3 18:36:37 dadpc kernel: EAX: d94851f8 EBX: d94851d0 ECX:
c1323480 EDX: d94851d0
Feb 3 18:36:37 dadpc kernel: ESI: 00000001 EDI: df025564 EBP:
de45fd74 ESP: de45fd74
Feb 3 18:36:37 dadpc kernel: DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Feb 3 18:36:37 dadpc kernel: Process kswapd0 (pid: 15, ti=de45e000
task=de440120 task.ti=de45e000)
Feb 3 18:36:37 dadpc kernel: Stack: de45fd8c c01966d9 d94851d0
d94851d0 df92a400 df92a400 de45fdb4 e15846ef
Feb 3 18:36:37 dadpc kernel: 000000d0 c1323480 d94851d0
00000000 df92a4b8 c1323480 df92a400 000000d0
Feb 3 18:36:37 dadpc kernel: de45fdc8 e15c9b69 c1323480
000000d0 00000001 de45fdd8 c01598a7 c1323480
Feb 3 18:36:37 dadpc kernel: Call Trace:
Feb 3 18:36:37 dadpc kernel: [<c01966d9>] try_to_free_buffers+0x70/0x7f
Feb 3 18:36:37 dadpc kernel: [<e15846ef>]
journal_try_to_free_buffers+0xfb/0x144 [jbd]
Feb 3 18:36:37 dadpc kernel: [<e15c9b69>] ext3_releasepage+0x4b/0x54 [ext3]
Feb 3 18:36:37 dadpc kernel: [<c01598a7>] try_to_release_page+0x32/0x3f
Feb 3 18:36:37 dadpc kernel: [<c01627ac>] shrink_page_list+0x46f/0x556
Feb 3 18:36:37 dadpc kernel: [<c01629bf>] shrink_inactive_list+0x12c/0x33f
Feb 3 18:36:37 dadpc kernel: [<c0162c9d>] shrink_zone+0xcb/0xea
Feb 3 18:36:37 dadpc kernel: [<c016316e>] kswapd+0x380/0x4ba
Feb 3 18:36:37 dadpc kernel: [<c0135fdf>] kthread+0x3b/0x61
Feb 3 18:36:37 dadpc kernel: [<c0106d37>] kernel_thread_helper+03,x7/0x10
Feb 3 18:36:37 dadpc kernel: =======================

So this is when it happened, most probable!
How I made it ext3 - I do not know.

Apologies for misleading (If I misled anybody except myself),

I have found out the hard way, that looking at the config/reference
files tells me things about my system that I thought I knew but didn't,
/etc/fstab is the most logical indicator of how things were setup/ought
to be. So I asked.

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