[ale] Ubuntu upgrade

[drifter]

Okay; I upgraded the Ubuntu install on my netbook from 9.whatever
to 10.whatever.
Apparently I now need to edit the grub boot menu as the OS now boots
into runlevel 3. On Fedora/RedHat the runlevel used to be set in 
/etc/inittab  but there doesn't seem to be any such file on this box.

So how do I get to the grub boot file to edit it to start in Runlevel 5
and, if necessary, tell it to startX?

Sean