Ubuntu
plymouth package

  1. Bug #509487
  2. Comment #15

Comment 15 for bug 509487

Revision history for this message
Steve Langasek (vorlon) wrote : Re: [lucid] Plymounth not asking for passphrase on non-root partition

Just uploaded a new version of cryptsetup that fixes the echo -e bug, and also stops cryptsetup-enable from double-prompting (invisibly) for the same disk. That won't fix the root problem here, but may make debugging easier.

After upgrading, can you edit /etc/init/cryptdisks-udev.conf to attach to the running plymouth process with strace, to see what it's doing when it should be writing prompts? I wonder if it's trying to load plugins from disk, and this is failing because it's in some sort of limbo between the initramfs and the root system.

Something like the following should work (N.B.: untested, may hang your system, and definitely will break if you have more than one disk in /etc/crypttab):

pre-start script
    (strace -ff -e file -s 256 -o /var/run/plymouth-not-prompting -p $(pidof plymouthd) &)
end script
post-start script
    killall strace
end script