i have a second hard disk that i want to set up with an encrypted lvm with two partitions. i want it so when i tell cryptdisks_start to start the disk it prompts me for a password but i also want it so when i tell it to cryptdisks_stop the device is removed from /dev/mapper. if the encrypted parition is not an LVM and just an ext3 the removing part works fine. but if i want to have an lvm inside of it with 2 volumes of ext3 then i cant stop the encrypted drive (im guessing because /dev/mapper/VG00-Vol0[0,1] is still there). how do i unmount the encrypted partition then?