headless ubuntu / linux

if you are running a headless ubuntu / linux server and have no remote
console at all and it's important for the OS to boot without requiring
interaction make sure you do this:

http://www.linuxquestions.org/questions/linux-newbie-8/grub-not-working-default-highlighted-but-timeout-doesn't-auto-select-4175490182/

set GRUB_RECORDFAIL_TIMEOUT=2 (or whatever timeout you want). and of
course, run update-grub.

This will prevent it from sitting / hanging at the grub menu because
of a power failure or whatever.....