Comment 8 for bug 874774

This also affected my custom encrypted configuration. I see the prompt twice, once for each encrypted volume. I can use the (M)anual option to drop to the busybox shell, manually unlock the volumes with cryptsetup, then exit the shell, after which mountall carries on successfully.

After remaining on Lucid until now I installed Oneiric into empty LVs, one for "/" and another encrypted for "/var". In addition I added the encrypted "/home".

/etc/crypttab has:

Oneiric_var /dev/mapper/Ubuntu-Oneiric_var_encrypted /media/USB/somefile.key luks
home /dev/mapper/Ubuntu-home /media/USB/somefile.key luks

and lvm2 and cryptsetup are installed into the new volumes and have updated the initrd.img.

/etc/fstab has:

proc /proc proc nodev,noexec,nosuid 0 0
/dev/mapper/Ubuntu-Oneiric / ext4 errors=remount-ro 0 1
/dev/mapper/Oneiric_var /var ext4 defaults 0 2
/dev/mapper/Ubuntu-swap none swap sw 0 0
# /boot was on /dev/sda3 during installation
UUID=af296c2f-a6f5-4cdb-b74c-66310f169677 /boot ext3 defaults 0 2
/dev/mapper/Ubuntu-usr_local /usr/local ext3 defaults 0 2
/dev/mapper/home /home ext3 defaults 0 2