When it comes to Linux bootloaders, I cut my teeth on LILO. Learned that, got good at it! But, time moves on and pretty much all the Linux distros went to GRUB. So, learned that, got good at it, LIKED IT! But, time moved on again. Now most of the major distros have switched to GRUB2. Granted, it did fix some problems found in GRUB, but we lost the easy-to-edit menu.lst file which was a one stop shop for configuring the boot menu in GRUB. Typically, you would either want to manually added entries to the boot menu or to remove unneeded entries. This much more complex in GRUB2, but not impossible. With a little guidance, you can get back to having a boot menu done the way you want. After some searching, I found these two articles that provide the best HOWTO info that I know of, particularly without being overly complex. Both of these authors have done a very good job at making this understandable, and doable. Check them out.
Understand the structure of GRUB2 and how to add entries:
Clean up your boot menu in GRUB2 and remove unneeded entries: