Urgent help !

Urgent help !

[Beatriz Botero H]

I am running a PC under Linux SuSE 7.2 with kernel 2.4.18, self compiled.
I changed some days ago the partition of my second HD from ext2 to ext3 with the help of tune2fs -j /dev/hdb2 and everything was running OK.
Today, I had a problem with a frozen display and I had to reboot the box cold. During the corresponding forced check I got the following messages:
Quote
---------
/dev/hdb2: reading journal for ext3 file system...
fsck.ext3: Invalid argument:couldn't load ext3 journal for /dev/hdb2
fsck.ext3: /dev/hdb2 failed ( status 8 )! run it manually
....
fsck failed. Please repair manually and reboot
---------

After I enter fsck /dev/hdb2 i got:
Quote
---------
Parallelizing fsck versioin 1.19a (13-jul-2000)
e2fsck 1.19, 13-jul-2000 for EXT2 FS 0.5b, 95/08/09
/dev/hdb2: reading journal for ext3 file system...
fsck.ext3: Invalid argument:couldn't load ext3 journal for /dev/hdb2
fsck.ext3: /dev/hdb2 failed ( status 8 )! run it manually
---------
If I try to boot with the boot DK or with the CD ( Linux SuSE 7.2 ) I get the same wording.

What can I do ? As I was just experimenting with ext3, I can reformat the second HD if necessary ( partiton magic ). However, the informations in the first HD are extremely important for me ( second HD was backup for HD 1 ;-(   )

Thanks in advance for any hints !
Edgar Alwers
Please answer to the above still functioning address or to the list



----------------- 

Beatriz Botero H.
Weinheim. Germany
mailto:bbotero@gmx.de
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Re: Urgent help !

[Christoph Hammann]

Am Montag, 8. April 2002 23:25 schrieb Beatriz Botero H:
> I am running a PC under Linux SuSE 7.2 with kernel 2.4.18, self compiled.
> I changed some days ago the partition of my second HD from ext2 to ext3
> with the help of tune2fs -j /dev/hdb2 and everything was running OK. Today,
> I had a problem with a frozen display and I had to reboot the box cold.
> During the corresponding forced check I got the following messages: Quote
> ---------
> /dev/hdb2: reading journal for ext3 file system...
> fsck.ext3: Invalid argument:couldn't load ext3 journal for /dev/hdb2
> fsck.ext3: /dev/hdb2 failed ( status 8 )! run it manually
> ....
> fsck failed. Please repair manually and reboot
> ---------
>
> After I enter fsck /dev/hdb2 i got:
> Quote
> ---------
> Parallelizing fsck versioin 1.19a (13-jul-2000)
> e2fsck 1.19, 13-jul-2000 for EXT2 FS 0.5b, 95/08/09
> /dev/hdb2: reading journal for ext3 file system...
> fsck.ext3: Invalid argument:couldn't load ext3 journal for /dev/hdb2
> fsck.ext3: /dev/hdb2 failed ( status 8 )! run it manually
> ---------
> If I try to boot with the boot DK or with the CD ( Linux SuSE 7.2 ) I get
> the same wording.
>
> What can I do ? As I was just experimenting with ext3, I can reformat the
> second HD if necessary ( partiton magic ). However, the informations in the
> first HD are extremely important for me ( second HD was backup for HD 1 ;-(
>   )

Dear Edgar!

/dev/hdb2 seems to be definitely hosed, I'm not seeing any reasonable method 
of getting at the data on this partition. But as you write this partition 
seems to contain a backup only. Can you boot from CD-ROM or diskette and when 
it halts in the bootup process while trying to fsck /dev/hdb2 open another 
console (Ctrl-Alt-F2 to F{number of ttys+1})? If so, I would try to umount 
this partition and go on with the boot process or edit /etc/fstab so that it 
doesn't even touch it.
If, on the other hand, /dev/hdb2 contains the root filesystem, you really are 
FUBAR. Wonder if one of the experts on this list can still help you out of 
this.
So, what is the /etc/fstab of this system?

Christoph
-- 
Random fortune quote:
Kin, n.:
	An affliction of the blood
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Re: Urgent help !

[Edgar Alwers]

Thank you, Christoph.

I could boot the box in maintenance modus, edit /etc/fstab and exclude 
/dev/hdb2 from booting. After that, I could at least boot up normally my 
first hd.

Now one question and one general remark.
The question: how could I  try to rescue the /dev/hdb2 partition ? I mean, 
do I have to formate the disk or what could be a better procedure ?

The general remark: after this experience, I would strongly recomend _not_ 
to_change a running ext2 partition in an ext3 one, as it seems that recovery 
processes in the event of a crash and consequential forced check may have 
catastrophal consequences. I had downloaded the newest e2fsprogs version 1.27 
and even this program could not repair the partition. Not imaginable what 
would have happened, if I would have also changed the partition containing 
root !

Edgar

You wrote:
>
> /dev/hdb2 seems to be definitely hosed, I'm not seeing any reasonable
> method of getting at the data on this partition. But as you write this
> partition seems to contain a backup only. Can you boot from CD-ROM or
> diskette and when it halts in the bootup process while trying to fsck
> /dev/hdb2 open another console (Ctrl-Alt-F2 to F{number of ttys+1})? If so,
> I would try to umount this partition and go on with the boot process or
> edit /etc/fstab so that it doesn't even touch it.
> If, on the other hand, /dev/hdb2 contains the root filesystem, you really
> are FUBAR. Wonder if one of the experts on this list can still help you out
> of this.
> So, what is the /etc/fstab of this system?
>
> Christoph

-- 
-----------------------------------
Dr.-Ing. Edgar Alwers
Mailto:edgaralwers@gmx.de
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