Chapter 18. Boot from SAN 26912.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 yourspecific needs.18.2.7 Red Hat Enterprise Linux 5.2 installationThis section shows how to install Red Hat Enterprise Linux 5.2 boot from SAN with an IBMSystem x server.Linux boot processThis section provides an overview of the Linux boot process in an x86 environment. Ingeneral, the boot process is as shown in Figure 18-47.Figure 18-47 Linux boot processSystem BIOSThe process starts when you power up or reset your System x. The processor runs the basicinput/output system (BIOS) code, which then runs a power-on self-test (POST) to check andinitialize the hardware. It then locates a valid device to boot the system.Boot loaderIf a boot device is found, the BIOS loads the first stage boot loader stored in the master bootrecord (MBR) into memory. The MBR is the first 512 bytes of the bootable device. This firststage 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, thesecond 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.Tip: After you successfully install Windows 2008, add the remaining WWPN for all otherHBAs to the igroup, and install the FCP Windows Host Utilities.Prerequisite: Always check hardware and software, including firmware and operatingsystem compatibility, before you implement SAN boot in different hardware or softwareenvironments.
