Single Disk Dual boot of 2 linux systems

[bgoelz]

All I want to do as a newbe is to put two Linux OS systems on one disk so I can boot either one and compare how they operate. I have used gparted and a boot manager to get disks in my system to operate very well. The boot loader lets me select either my Windows system on hda0 or my Linux Ubuntu install on hdb1. Now I am ready to get hdb2 up and running with the next Linux operating system. Do you know of a recent tutorial that uses Grub and not lilo for this operation?
Thx
bgoelz