[U-Boot-Users] Using DNS for serverip parameter

Hello all, I've been looking in the web all day for this, still no answer ... I want to set the 'serverip' kernel command-line parameter to be of the form 'MyLinux' instead of the usual 192.168.x.x form. How do I go about that? In the u-boot environment I set the dnsip variable properly, and currently my bootargs looks like: bootargs=mem=120M console=ttyS0,115200n8 root=/dev/nfs rw 'nameserver=${dnsip} nfsroot=${serverip}:${rootpath}' ip=dhcp noinitrd

Is this the right way to go (probably isn't, as it doesn't really work)? Is there a special format for 'serverip' which is not an IP address? Regards, Avishai.