I cannot seem to find anybody with a similar issue. I also cannot read the FAQ (I see a blank page), so sorry if this is redundant. First, my versions (not sure what's relevant): cryptsetup-1.0.6 device-mapper-1.02.28 libgcrypt-1.4.4 linux-2.6.28.1 luks-tools-0.0.12 These work: cryptsetup -h shaXXX -s 256 -c twofish-cbc-essiv:sha256 luksFormat /dev/sda8 (for XXX in [256, 384, 512]) These don't: cryptsetup -h sha256 -s XXX -c twofish-cbc-essiv:shaYYY luksFormat /dev/sda8 (for XXX in [384, 512], YYY in [384, 512]) Here's the error: Command failed: Failed to setup dm-crypt key mapping. Check kernel for support for the twofish-cbc-essiv:shaYYY cipher spec and verify that /dev/sda8 contains at least ZZZ sectors (ZZZ is some number, different for each choice of XXX and YYY above) Also, the partition is about 8M sectors. I have SHA224/256 and SHA384/512 compiled into the kernel. Markus --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx