Just upgraded my 6.5sp2 to sp3 - upon restart of server I get the following:

The critical component (NSS.NLM) was not loaded or executed or is missing.
NetWare cannot function without this component.
Volume SYS could NOT be mounted. Some or all volume segments cannot be
located. If this is an NSS volume, the pool may need to be activated
using command nss /poolactivate=poolname.

The server boots to colon prompt - I am unsure how to proceed to fix this.

Any help guidance will be gratefully recieved.