This is disturbing. I was going to ask what happens if initramfs-tools is updated and the problem is not fixed.
Just did an update on a working machine with the above work around and initramfs-tools was one of the packages updated. This triggered an update of the initrd. That computer no longer boots, instead giving the "mdadm: No devices listed in conf file were found." again. -- linux software RAID not working after herd 3 installation.. https://launchpad.net/bugs/83231 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs