Installing Red Hat Enterprise Linux on an Itanium system is different from installing Red Hat Enterprise Linux on an x86-based system. In general, the sequence of steps to a successful installation are the following:
Boot into the Extensible Firmware Interface (EFI) Shell.
If you cannot boot from the CD-ROM, make an LS-120 diskette from the boot image file provided with Red Hat Enterprise Linux.
Using the EFI Shell and the ELILO boot loader, load and run the kernel, and boot into the Red Hat Enterprise Linux installation program.