/sbin/cryptsetup missing from initramfs

Bug #1246841 reported by AZ on 2013-10-31
This bug affects 2 people
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Bug Description

After upgrading to Ubuntu Saucy, the initramfs prompts me for password of my root disk (which is luks encrypted mdadm raid1), but then fails to run /sbin/cryptsetup - as that binary is missing in initramfs.
The problem persists even after booting into Saucy with a fixed initramfs and then regenerating the initramfs.

AZ (m-dev) wrote :

This is on amd64.

AZ (m-dev) wrote :

This was due to /etc/crypttab containing no line for the root file system. Though this used to work with a couple of previous ubuntu versions and likely was set up by an ubuntu installer automatically some ubuntu versions ago.

AZ (m-dev) wrote :

Another machine was hit by this again.

AZ (m-dev) wrote :

The other machine had an empty /etc/crypttab. The initramfs from saucy asked the owner for the password of the root partition but then could not open it due to cryptsetup missing. The initramfs of saucy contained an conf/conf.d/cryptroot entry for the root partition, though!
This used to work with the at least three previous versions of ubuntu.

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