Bug#594472: Similar error here but system does not boot anymore

[Dh H]

My Laptop shows a very similar behaviour
It has 2x500G mirrored, two partitions set up
md0 acts as /boot
md1 is a encrypted lvm, which houses all other FS including root and swap.
While upgrading I had the question which arrays need starting at boot time.
I answered this with the default: All

Now I get the same message about volume group not found before boot.
after that there are the said


/sys/devices/virtual/block/md0 (number)
/sys/devices/virtual/block/md1 (number)

and eventually I am asked for the disk password.

after I endtered the password, the system seems to do nothing, but
flickers the disk.
That is now the case for seven hours and neither have I seen a
bootmessage nor nor any other message but 'Enter Passphrase'