very bad unmounts from 2.0.34/5?

Anders Henriksson (andhe@ida.liu.se)
Wed, 09 Sep 1998 17:21:20 +0200


Hej.

I recently tried to uppgrade to 2.0.35 and it completely trashed my
filesystem. I have now spent about two weeks worth of evenings to figure it
out and failed. Now I need help from you experts out there:)

I am running a pentium 200mmx with 96M and two 4.3G discs.
To trace the problem I reinstalled a plain redhat 5.0 with the 2.0.32 kernel
on each drive (thus I have two separate systems). This works just fine.

Then I recompiled the 2.0.32 kernel on hdb (the second drive), installed it
and made it work fine.

I did the same thing with the 2.0.33 kernel and it still works fine. (still on
hdb)

Then I tried the 2.0.34 kernel.
Initially it works fine. The first boot is ok and I can run X and basicly do
anything I want.
Then I shutdown the system with: shutdown -r now
Shutdown looks normal to me (with 6 months linux experience)
The reboot halts with the message: kernel panic! failed to mount root on 3.10

I now boot from hda (no problem, still 2.0.32) and try to repair the /
partition on hdb with fsck and fsck.ext2. This puts everything in lost+found
and names it #xyzv something where xyzv is a number, most of it is unredable.
If I try to reboot from hdb after the "repair" I get a message:failed to open
initial console.

>From this point all I can do is reinstall (or ?)

I get exactly the same behaviour from 2.0.35

I have read faq's howto's and scanned mailing archives but I cant figure out
what I am doing wrong. Chances are the I am missing something simple but it
worked for 2.0.32 and 2.0.33 (I am not a kernel hacker (yet)).

I can reproduce this every time but since it trashes everything I cant get to
the logs afterwards so I cant really submit them.

Any help or suggestions are appeciated.

/Anders

-- 
Anders Henriksson		tel: +46 13 288983
TOSCA, IDA			fax: +46 13 282606
Linkoping University		
S-581 83 Linkoping		E-Mail:	andhe@ida.liu.se 	
Sweden                		WWW:	http://www.ida.liu.se/~andhe/

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