When using dm-crypt to encrypt a drive, a passphrase must be entered at boot time to unlock it. I should also note that LUKS and dm-crypt are the underlying programs that Tomb uses to work its magic.

I have dm-crypt (i.e. cryptsetup with LUKS) setup on top of the array that uses all the space. I use ext4 on top of the dm-crypt device. Here's my array this morning: Code: # mdadm ...

After doing some research, I discovered there were two ways to do this. I could use either cryptoloop or its successor, dm_crypt. A considerable amount of information is available for using cryptoloop ...