Comment 4 for bug 672964

I can confirm that this just happened to one of my machines and that re-running update-initramfs makes the system bootable again. For some reason all of my previous initrd's also were partially remade, so I had -24 and -25 with the udevadm trigger message and -26 panic while trying to find the initrd at all.
Unfortunately dpkg.log seems not to contain any good hints (did apt-get dist-upgrade from commandline).