As it turns out, the initramfs of both kernels (2.6.27 and 2.6.28) did not contain any modules. I'm not sure what happened or what went wrong, but somehow the dist-upgrade process seems to have missed the entire "rebuild after modules installation" event. After booting into my system, a simple $ update-initramfs -c -k `uname -r` was enough to create a fully-working system again.
a...@master:~$ zcat /boot/initrd.img-2.6.27-11-generic | cpio -t | grep lib/mod 19733 blocks lib/modules lib/modules/2.6.27-11-generic a...@master:~$ zcat /boot/initrd.img-2.6.28-11-generic | cpio -t | grep lib/mod 44596 blocks lib/modules lib/modules/2.6.28-11-generic lib/modules/2.6.28-11-generic/kernel [... snip all modules ...] -- initramfs: missing reiserfs module https://bugs.launchpad.net/bugs/355341 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs