migrate NIM server through NIM installation

I try to migrate a NIM server from one server to another.

I try to do a mksysb on NIM server
restore the NIM server's mksysb to a client through NIM installation
shutdown NIM server
start newly installed client as NIM server

Does anyone do this before? who can give me some suggestion?

for me the correct procedure is :

1 - do one mksysb of your nim master
2 - make the nim's database backup and take the generated file with you .
3 - restore the new machine with the nim mksysb
4 - when the new_nim_master is up , reinstall the bos.sysmgt.nim fileset , specially the spot and master .
5 - restore the nim master database
6 - change the new_nim_master attribute , hostname , ip , ent specification .

work .....