Kdump does not use DNS in it's initrd in Red Hat Enterprise Linux 5

Issue

• Support for DNS is limited to the creation of the kdump initrd: 
• the mount command in the init script specifies the resolved IP address. 
• If the storage share is moved, all the kdumps will fail. 
• The server name ought to be maintained in the init script, and a DNS lookup should resolve it at dump time.