[NBLUG/talk] Problems booting Ubuntu 10.04

[Steve Bursch]

I have a machine on which I recently installed Ubuntu 10.04.  After 
installing, I applied all of the outstanding maintenance.  The machine 
booted successfully once after that.  Now, the machine fails to boot 
every time.  With previous versions of Ubuntu, I've had similar 
problems, and the fix was to add "rootdelay=130" to the kernel entry in 
the grub menu.  Unfortunately, the grub menu no longer appears; pressing 
the ESC key has no effect.

Any words of advice someone can share about how I can approach solving 
this problem?  Can I boot from my installation CD and edit the menu.lst 
file that exists on the hard drive?

Thanks in advance....Steve