We had a blackout (seemed to happen every fall when the students arrived - the university had a power station), the NFS server needed NIS to boot, and NIS serve

We had a blackout (seemed to happen every fall when the students arrived - the university had a power station), the NFS server needed NIS to boot, and NIS server required NFS. We managed to manually get the NIS service running in single user mode, brought up everything else, and then rebooted NIS.