LUKS partition is no longer recognized as such

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Hi there!

I used to have my homedir on a LUKS partition. This worked fine for several 
month. Yesterday I had to shutdown my computer hard since it had froze solid.

Today I ran into trouble: cryptsetup isLuks /dev/device_of_home_partition 
claims the device is not a LUKS partition at all and cryptsetup 
luksOpen /dev/device_of_home_partition somename fails as well, informing me 
that the device is not a LUKS partition. Other LUKS partitions still work 
fine.

Is there a way to flag a partition as "being LUKS" without damaging the master 
key and keys stored? Is there any chance to get my data back without 
resorting to my backups?

I am running ubuntu/gutsy on a x86 box. Kernel currently is 2.6.22-6-generic 
from ubuntu.

PS: I am not subscribed to this list, please CC me in any reply you send.

Thanks for your help!

-- 

Tobias Hunger
Senior Software Engineer

basysKom GmbH
Robert-Bosch-Str. 7 | 64293 Darmstadt | Germany
Tel: +49 6151 3968769 | Fax: -9736 |
tobias.hunger@xxxxxxxxxxx | www.basyskom.de

Handelsregister: Darmstadt HRB 9352
Geschaeftsfuehrung: Eva Brucherseifer

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