stop auto-mounting dmcrypt/LUKS at boot?

Sune Marcher

Hey everybody,

I've recently set up an LUKS-encrypted raid mirror on my fileserver,
which went smoothly and is working just fine; manpages and a little
googling was all it took.

However, I now face the problem that the gentoo initscripts wants to
mount the partition at runtime, prompts for passphrase and has very long
timeout, which isn't very nice for a server that I want to be able to
remote-boot. I've been searching both the web and newsgroups, but
haven't been able to find a solution for this (indeed, my google-fu is
weak).

If I remove the entry from /etc/conf.d/dmcrypt , the auto-mounting (and
thus passphrase-asking) doesn't happen, which is just fine; having SSH
in and do cryptsetup manually is no problem. The problem with this
approach, however, is (obviously ) that the crypt mapping isn't taken
down on boot/shutdown, so if I forget to do it manually, the raid won't
dismount cleanly.

Is there some clean way to not auto-mount but have auto-dismount on
shutdown, or should I go hunt for some existing shutdown script I can
hack a dismount line into?

Thanks in advance!