Why does my Red Hat Enterprise Linux 5 system fail to boot when it seems to have installed without a problem?

Release Found: Red Hat Enterprise Linux 5

Symptoms:

System installs succcessfully but it does not boot. It will either give the message "cannot locate boot device" or stop at the GRUB prompt.

Resolution:

There may be a discrepancy between the boot order that is set in the BIOS and the boot order determi...