After an hour or so, more info:
could not start boot splash: Input/output error fsck from util-linux-ng 2.17.2 /dev/sda1: clean, 52312/491520 files, 262116/1965824 blocks * Starting Apparmor profiles [ OK ] /etc/init.d/rc: 341: /etc/rcS.d/S55urandom: Input/output error /proc/self/fd/10: 30: telinit: Input/output error
After an hour or so, more info:
could not start boot splash: Input/output error d/S55urandom: Input/output error
fsck from util-linux-ng 2.17.2
/dev/sda1: clean, 52312/491520 files, 262116/1965824 blocks
* Starting Apparmor profiles [ OK ]
/etc/init.d/rc: 341: /etc/rcS.
/proc/self/fd/10: 30: telinit: Input/output error