Unable to mount NFS share during boot

Hello Everyone,

I have a pseries machine running AIX 4.3.3 that has an invalid IP in /etc/hosts. During a boot the system hangs because it's trying to mount an NFS share to this invalid IP.

I've tried to boot the system from a mksysb (not sure if the device was defined as rmt0) and AIX CD but it looks like the boot list is booting from disk first.

I vaguely remember that there's a key sequence you can press during boot (the system 'monitor' is an ascii terminal) but I can't remember the sequence.

Does anyone have any suggestions?