Well I'm helping a friend of mine install Slackware 12.2 on his Vanilla flavored Dell something-or-other.

We had a hell of a time with it too! Really, finding the hard drive device located in /dev/cciss/c0d0 was something I'd never seen before.

At anyrate, we got Slackware to go through it's normal installation cycle, until we got to the configuration part of the install where we received an error message about lilo unable to install in /dev/sda or something (/dev/sda was non-existent)

I was rushing and didn't give it any thought until we had *finished* the installation process and rebooted. Then we ran into the grub prompt.

I'm rather stumped. How can we get lilo to boot the correct drive?
Is there something we can do inside the grub prompt to boot Slackware and then reconfigure lilo.conf, reinstall, and then try to reboot?

if you have the grub prompt it means you may have had an old linux install.

either use a live cd to install grub files onto slack and re-embed grub to it or run the slack install and redo lilo.