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Re: [opensuse] ReiserFS partitions recognized as Ext3. How to recover? - Definitely a bug
  • From: "Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>
  • Date: Sun, 07 Feb 2010 15:48:26 +0100
  • Message-id: <4B6ED2BA.4000705@xxxxxxxxxxxxxx>
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On 02/07/2010 07:42 AM, Mark Goldstein wrote:
On Sun, Feb 7, 2010 at 1:27 AM, Mike McMullin <mwmcmlln@xxxxxxxx> wrote:
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:
...
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.

Thank you Mike. Actually Carlos told me from the very beginning that
it is not possible, but I was so absolute sure I did not use ext3...
And indeed all other computers I was using were reiserfs. But not this
one.
Stupid me. Will check and re-check myself next time :-(.

Well... it just happened to me. :-O

I had just installed 11.2_x64 on another partition, formatted as reiserfs - I'm
definitely sure of
this. I recovered some data from a backup of a previous install. Then I filled
the fstab from
another copy, and, big mistake, rewrote the root entry as _ext3_. Rebooted.

No error was reported. But... there were strange things. I copied them:

mount said:

/dev/sda9 on / type ext3 (rw,acl,user_xattr)

fstab said:

LABEL=a_test2 / ext3 acl,user_xattr
1 1

"file -s /dev/sda9" said:

/dev/sda9: ReiserFS V3.6


boot.msg log said:

<5>[ 3.104641] REISERFS (device sda9): found reiserfs format "3.6" with
standard journal
<5>[ 3.104652] REISERFS (device sda9): using ordered data mode
<4>[ 3.104653] reiserfs: using flush barriers
<5>[ 3.105080] REISERFS (device sda9): journal params: device sda9, size
8192, journal first
block 18, max trans len 1024, max batch 900,
<5>[ 3.105360] REISERFS (device sda9): checking transaction log (sda9)
<5>[ 3.146242] REISERFS (device sda9): Using r5 hash to sort names


Ie, it is and was a reiserfs partition, but mount wrongly reported that it was
ext3. There is
definitely a bug here.

(I corrected the fstab and rebooted; things are correct now and no damage seems
to have come out of
it... (I did not try to fsck). I'll keep my fingers crossed)


And I'm very, very surprissed :-(


- --
Cheers / Saludos,

Carlos E. R.
(from 11.2 x86_64 "Emerald" GM (Elessar))
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