You have a VAXstation 3100 and the NetBSD/pmax port won't run on it.
You need to wait for the NetBSD/vax port to support the VS3100.

Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt.html
Westford, MA              Disclaimer: I disavow all knowledge of this message