Can't mount /home anymore

Nickel Cadmium nicdnicd at gmail.com
Fri Feb 2 15:13:47 UTC 2007


Hi!

I'm still stuck with my unmountable home partition.
Would it be possible to mount it using a backup block somehow?

Cd

On 1/20/07, Nickel Cadmium <nicdnicd at gmail.com> wrote:
>
> Hi Christian (& all)!
>
> Thanks for the reply. I was away for some time but here is the extra
> information you requested.
>
> Yes, after the message "fsck.ext3: e2fsck_read_bitmaps: illegal bitmap
> block(s) for /home", fsck just stops.
> The command 'fsck.ext3 /dev/sda6; echo $?' returns the value 8. Looking at
> the man page for fsck, I found that this is an "Operational error". I have
> totally no clue what this means.
>
> With fsck, nothing is reported in the syslog file. If I try mounting the
> partition, I get the following errors reported:
> Jan 20 11:43:57 localhost kernel: EXT3-fs error (device sda6):
> ext3_check_descriptors: Inode bitmap for group 522 not in group (block
> 3271884801)!
> Jan 20 11:43:57 localhost kernel: EXT3-fs: group descriptors corrupted !
>
> I could dd the partition without errors. I did copy the partition two
> times already, I order to be able to try some recovery on it. With
> converting a copy to ext2 and running "fsck.ext2 -v -y" on it (in
> something like two days), I was able to get some files (all?) in the
> lost+found. However, the file names are lost and the directory structure as
> well. It's hard to tell which file is what.
> I'm really wondering if there is a way to mount that partition again.
>
> I run Mandriva on a Pentium PC. My kernel is 2.6.17-5mdv. However, I first
> thought than my /home problem was some kind of booting problem. Thus I
> upgraded from Mandriva 2006 to Mandriva 2007. This means that I don't know
> what my kernel was when the problem occurred. It should be 2.6.12 as this
> was a straight out-of-the-box installation.
> My fsck version is "e2fsck 1.39".
>
> Best wishes,
> Cd
>
> On 1/14/07, Christian Kujau <lists at nerdbynature.de> wrote:
> >
> > On Wed, 10 Jan 2007, Nickel Cadmium wrote:
> > > # fsck.ext3 /dev/sda6
> > > e2fsck 1.39 (29-May-2006)
> > > Group descriptors look bad... trying backup blocks...
> > > Inode bitmap for group 522 is not in group. (block 3271884801)
> > > Relocate<y>? yes
> > >
> > > fsck.ext3: e2fsck_read_bitmaps: illegal bitmap block(s) for /home
> >
> > ...and after this message, fsck.ext3 just stops? What's the exit code of
> > fsck.ext3? (e.g. 'fsck.ext3 /dev/sda6; echo $?'). Try " fsck.ext3 -v"
> > for
> > more details. Is there anything related in your syslog? Can you dd(1)
> > the device (read! not write! :)) without errors?
> >
> > Which kernel/arch are you running?
> >
> > Christian.
> > --
> > BOFH excuse #99:
> >
> > SIMM crosstalk.
> >
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/ext3-users/attachments/20070202/5eebb9f7/attachment.htm>


More information about the Ext3-users mailing list