I'm working on booting a headless server (Fedora 16), entering the passphrase to decrypt the root disk (LUKS) over SSH using dropbear. I've got dropbear all working: I can SSH to the server while it's sitting and waiting for the password. But I can't figure out how to actually pass the password to use.
The crypt script that asks for the password and decrypts the volume uses the
plymouth ask-for-password command; is there a way to pass the password into this command from the command line? I've tried writing to the process's stdin, but that didn't work. Is there some other way I can do it?