I recently used the gentoo live CD to migrate my data from reiserfs to ext3. In the process, I decided to encrypt some of my data by making new LUKS partitions. There was one LUKS partition already in existance. I luksOpened it, mounted the /dev/mapper/crypt, copied data off, umounted, and mke2fs -j. Then I remounted and put data back. The other two partitions I luksFormated, luksOpened, ran mke2fs -j on their respective /dev/mapper/crypts, mounted, and put data on one one of them. Before rebooting, I umounted all partitions, but did not luksClose. The two LUKS partitions that had data on them are no longer recognized as being LUKS partions by cryptsetup luksOpen. The third one has no problems, but contains only the lost+found directory as no data was put on this partition. Incidentally, the partition that still works is one of the two newly created ones, and the pre-existing one as well as one of the newly created ones is no longer working. I can't figure out what could have happened to the two partitions. Is there any kind of diagnostic or recovery I can try?