Mailinglist Archive: opensuse-bugs (4654 mails)

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[Bug 577798] New: mounts a reiserfs partition and reports ext3.
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Sun, 7 Feb 2010 20:22:36 +0000
  • Message-id: <bug-577798-21960@xxxxxxxxxxxxxxxxxxxxxxxx/>

Summary: mounts a reiserfs partition and reports ext3.
Classification: openSUSE
Product: openSUSE 11.2
Version: Final
Platform: x86-64
OS/Version: openSUSE 11.2
Status: NEW
Severity: Major
Priority: P5 - None
Component: Basesystem
AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: carlos.e.r@xxxxxxxxxxxx
QAContact: qa@xxxxxxx
Found By: ---
Blocker: ---

I was doing a recover operation. I installed 11.2 x64 on a reiserfs partition,
then replaced fstab from a backup copy, forgetting that the root line was for
ext3, and rebooted.

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

Mount said it was an ext3 filesystem:

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

because fstab had:

LABEL=a_test2 / ext3 acl,user_xattr 1 1

But "file -s /dev/sda9" said:

/dev/sda9: ReiserFS V3.6

which is correct, and boot.msg log proves it:

<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 a bug here. Notice that damage may become if you fsck in this
situation: because of this, I classify as MAJOR.

(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).

Other people have reported a similar problem in the opensuse mail list (thread:
"[opensuse] ReiserFS partitions recognized as Ext3. How to recover?"

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