cryptsetup can't decrypt a partition since F7
adalbert.prokop at gmx.de
Fri Jun 22 20:55:24 UTC 2007
I've got a strange problem with Fedora 7. I've upgraded from FC5 to F7.
Since then I cannot decrypt a partition I've created with FC5. I used
cryptsetup *without* LUKS.
Even more strange: I can decrypt another partition which has been
encrypted in exactly the same way. The only difference between them is
- the decryptable partition is on a PATA drive
- the undecryptable partition is on a SATA drive
The hard drive is not broken because I can decrypt the partition under
Here is my diagnosis so far (sda1 and sdc1 is the same partition because
the naming convention changed with F7's kernel)
Under FC5 (and Knoppix 5.2) I do:
# cat key|cryptsetup -c aes-cbc-essiv:sha256 create _dev_sda1 /dev/sda1
# dmsetup --showkeys table _dev_sda1
0 976768002 crypt aes-cbc-essiv:sha256 <key1> 0 8:1 0
Under F7 I do:
# cat key|cryptsetup -c aes-cbc-essiv:sha256 create _dev_sdc1 /dev/sdc1
# dmsetup --showkeys table _dev_sdc1
0 976768002 crypt aes-cbc-essiv:sha256 <key2> 0 8:33 0
As you can see the identical commands produce two different encryption
Do you have a clou what's happening? Any hint would be great.
I've already filled a bug report, but I've got no response so far...
Every program has (at least) two purposes: the one for which it was
written and another for which it wasn't.
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