Wait... did you try 'N', then 'Y' and it failed? Probably the 'N' locked
it up, and it was already locked when you hit 'Y'. Try typing 'Y'without
ever typing 'N', I bet it will work. The 'Y', that is.
This problem implies that "reboot -f" is failing to reboot your machine.
This is doing a reboot(0xfee1dead, 672274793, 0x01234567)
and reboot is doing SYSCALL__ (reboot, 3)
and "reboot" is syscall number 88
which is beyond what I want to figure out what it means, either a kernel
bug or a motherboard bug, the bottom line is that your machine _should_
reboot when you say "n", not lock up. You can look at the code in
/usr/src/linux/arch/i386/kernel/process.c and see that the whole process
of a kernel "reboot" call looks sort of iffy...
-Tom
