Thierry Andriamirado wrote:

> Hello everybody,
> 
> Got a ReiserFS problem after a very bad shutdown (power loss), on a 
> LM8.1 box: can't boot anymore in 'normal' mode. I think it's due to the 
> /var which cant be fixed by reiserfsck.
> 
> I can boot in failsafe mode, but it crashes with a 'Unable to handle 
> NULL pointer dereference at virtual address 00000018' message after some 
> /var's files access.
> 
> In rescue mode, the /dev/hdc5 (/var) can't be checked nor fixed by 
> reiserfsck. Whatever option of reiserfsck I use, (even --rebuild-tree), 
> I got a segfault while analysing journal ('Analyzing 
> journal..Segmentation fault').
> This fs can be mounted, but unmount allways fails and ends up with a 
> nice crash!
> 
> Really annoying... it's my prod box and it's time to work (it's allways 
> time to work ;-))
> 
> Any tip 'd be appreciated, so thanks in advance guys!
> 
> ATR
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> Want to buy your Pack or Services from MandrakeSoft? 
> Go to http://www.mandrakestore.com
> 

I could say "use XFS" but the same sort of problem can occur.  _NO_ 
filesystem is proof against a power-down while the machine is writing to 
disk(which always has the potential of destroying a low-level format). 
I have seen Reiser do this more frequently than most others, but the 
answer is to restore from your backup.  (Well a filesystem consisting of 
a chisel, hammer and stone tablets might be somewhat more secure ...)

And if you have at least a CDRW, you can backup rather simply, using 
scdbackup.  Bulk CD-Rs are about $.33 US each.

Naturally, I back up only my work files, usually /home, /etc, and /var...

Civileme



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com

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