Workaround: appending rootdelay=10 onto the kernel's GRUB options solved the problem for me. I guess the VFS partition isn't available early enough in the boot sequence for the *-16 kernel.
(ESC during bootup, press 'e' on *-16 kernel, press 'e' on "kernel..." line, append 'rootdelay=10' to kernel options, 'ENTER', then 'b') -- linux 2.6.31.16 unable to boot, kernel panic unable to mount rootfs on unknown block https://bugs.launchpad.net/bugs/494654 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