Comment 3 for bug 538292

I'm sorry, but it seems you upgraded right in the middle of a complex transition. You will need to boot in single user mode or with init=/bin/bash to bypass mountall, remount / read-write by hand, and install the mountall 2.8 package from the archive to recover. (Alternatively, you can use an ISO image as rescue media to boot from, and recover that way.)

The plymouth 0.8.0~-14 package will enforce this upgrade by using Breaks:, but we need the new mountall built on all architectures first before uploading that.