System boot from SAN with multipathing is not working properly.The system will not boot and Grub is failing in stage 1.5.

Release Found: Red Hat Enterprise Linux 5

To resolve this issue, Grub must be reinstalled. To reinstall Grub on the multipath device perform the following procedures:

Note: This method has been validated on Red Hat Enterprise Linux 5.1 and 5.2 for systems that were initially installed with multipath. A single path to multipath change requires rei...