Red Hat Enterprise Linux 5.2 Installation - IBM N series Hardware Manual

12.After you are logged on as the administrator, a configuration wizard window is displayed.
Use the wizard for naming and basic networking setup.
13.Use the Microsoft Server 2008 Roles and Features functions to set up the server to your
specific needs.
Tip: After you successfully install Windows 2008, add the remaining WWPN for all other
HBAs to the igroup, and install the FCP Windows Host Utilities.

18.2.7 Red Hat Enterprise Linux 5.2 installation

This section shows how to install Red Hat Enterprise Linux 5.2 boot from SAN with an IBM
System x server.
Prerequisite: Always check hardware and software, including firmware and operating
system compatibility, before you implement SAN boot in different hardware or software
environments.
Linux boot process
This section provides an overview of the Linux boot process in an x86 environment. In
general, the boot process is as shown in Figure 18-47.
Figure 18-47 Linux boot process
System BIOS
The process starts when you power up or reset your System x. The processor runs the basic
input/output system (BIOS) code, which then runs a power-on self-test (POST) to check and
initialize the hardware. It then locates a valid device to boot the system.
Boot loader
If a boot device is found, the BIOS loads the first stage boot loader stored in the master boot
record (MBR) into memory. The MBR is the first 512 bytes of the bootable device. This first
stage boot loader is then run to locate and load into memory the second stage boot loader.
Boot loaders are in two stages because of the limited size of the MBR. In an x86 system, the
second stage boot loader can be the Linux Loader (LILO) or the GRand Unified Bootloader
(GRUB). After it is loaded, it presents a list of available kernels to boot.
Chapter 18. Boot from SAN
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