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Appendix A. Upgrading Your Current System

GRUB (GRand Unified Bootloader), which is installed by default, is a very powerful boot loader.

GRUB can load a variety of free operating systems, as well as proprietary operating systems with

chain loading (the mechanism for loading unsupported operating systems by loading another boot

loader, such as DOS or Windows).

LILO (LInux LOader) is a versatile boot loader for Linux. It does not depend on a specific file system,

can boot Linux kernel images from floppy diskettes and hard disks, and can even boot other operating

systems.

If you do not want to install GRUB as your boot loader, click Change boot loader. You can then

choose to install LILO or choose not to install a boot loader at all.

If you already have a boot loader that can boot Linux and do not want to overwrite your current boot

loader, or if you plan to boot the system using boot diskettes, choose Do not install a boot loader by

clicking on the Change boot loader button.

Caution

If you choose not to install GRUB or LILO for any reason, you will not be able to boot the system

directly, and you will need to use another boot method (such as a boot diskette). Use this option only

if you are sure you have another way of booting the system!

Figure A 4. Boot Loader Configuration

Every bootable partition is listed, including partitions used by other operating systems. The partition

holding your the system's root file system will have a Label of

Red Hat Linux

(for GRUB) or

linux

(for LILO). Other partitions may also have boot labels. If you would like to add or change the

boot label for other partitions that have been detected by the installation program, click once on the

partition to select it. Once selected, you can change the boot label by clicking the Edit button.

Select Default beside the preferred boot partition to choose your default bootable OS. You will not be

able to move forward in the installation unless you choose a default boot image.