Red Hat ENTREPRISE LINUX 5 Installation Manual page 68

Chapter 4. Installing on Intel® and AMD Systems
the MBR, when your machine boots, GRUB presents a boot prompt. You can then boot Red Hat
Enterprise Linux or any other operating system that you have configured the boot loader to boot.
• The first sector of your boot partition — This is recommended if you are already using another boot
loader on your system. In this case, your other boot loader takes control first. You can then configure
that boot loader to start GRUB, which then boots Red Hat Enterprise Linux.
Figure 4.19. Boot Loader Installation
Note
If you have a RAID card, be aware that some BIOSes do not support booting from the
RAID card. In cases such as these, the boot loader should not be installed on the MBR of
the RAID array. Rather, the boot loader should be installed on the MBR of the same drive
as the /boot/ partition was created.
If your system only uses Red Hat Enterprise Linux, you should choose the MBR.
Click the Change Drive Order button if you would like to rearrange the drive order or if your BIOS
does not return the correct drive order. Changing the drive order may be useful if you have multiple
SCSI adapters, or both SCSI and IDE adapters, and you want to boot from the SCSI device.
The Force LBA32 (not normally required) option allows you to exceed the 1024 cylinder limit for
the /boot/ partition. If you have a system which supports the LBA32 extension for booting operating
systems above the 1024 cylinder limit, and you want to place your /boot/ partition above cylinder
1024, you should select this option.
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