help with corrupted lvm/RAID disk

matt.price at utoronto.ca matt.price at utoronto.ca
Wed Jun 7 19:38:37 UTC 2006



Hi folks,

I had a wierd hard crash with amarok running & on the first reboot I
had a dpkg error when installing/reinstalling some stuff.  On the next
reboot gdm wouldn't start, ando n the third I couldn't log in even at
the console.  I've tracked down my Ubuntu Dapper LiveCD and am trying
torecover. but gparted crashes when I try to run it:

debugreiserfs 3.6.19 (2003 www.namesys.com)



debugreiserfs: can not open reiserfs on
"/dev/mapper/Anarres--64--main-home1": No such file or directory


/dev/mapper/Anarres--64--main-root1: No such file or directory

fatal error -- couldn't initialize XFS library

glibmm-ERROR **:
unhandled exception (type std::exception) in signal handler:
what: basic_string::substr

aborting...
Aborted

-----------
My main system is in an LVM Volume Group called Anarres-64-main, with
two partitions:
root:  the root system
home: /home


/boot is on a seperate partition.

the LVM itself (Anarres-64-main) is itself running on top of a simple
software RAID-1 that houses both root and home LV's.  The raid uses
identical partitions on identical S-ATA disks...  but I actually don't
know much about RAID and I don't know how to tell if there's some
physical corruption causing the malfunction.

Anyway,  my question:

how, given that gparted crashes, can I fix this system?  And why is
gparted talking about "-root1" and "-home1" when the names of the lv's
are 'root' and 'home' respectively?

ANyway, thanks,

matt




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