Comment # 33 on bug 909912 from Olaf Hering

Created attachment 643553 [details]
passphrase.jpg

This does not really work.

First it asks for the passphrase. If it times out the login prompt is shown.
Using ctrl+d gives another prompt. But appearently no input is accepted, note
the lone 's'. In followup attempts no input is accepted. And the final reboot
is still waiting for the missing devices, which causes unneeded delay of
reboot.

All in all that user interface is bad. Unlikely our fault.

As said earlier, the lack of separation between preparation and usage of block
devices leads to this situation. Its a simple setup, which can be handled by
the config files which are currently in use.