Comment 33 for bug 509487

Please note that Marc Gariepy works with me and lives something like 2 minutes away from me :)
I've been seeing the exact same behavior on his laptop as on mine though his is a perfectly clean Lucid install and doesn't use LVM (instead the ext4 /home partition is directly in the LUKS volume).

At boot time, we get the passphrase prompt correctly, after entering the key the prompt disappears and we get stuck there (as on my laptop).
Commenting the /home line in /etc/fstab and rebooting will make the laptop boot successfully though he'll then have to manually do the "cryptsetup luksOpen" and "mount".