herber@bgsuvax.UUCP (Steve Herber) (02/21/85)
We have been trying to install 4.2BSD on a VAX 11/785 for sometime now. The problem we run into is that when we try to restore the / filesystem from the distribution tape, the system hangs and the 'A' light goes out on the RA81 that the restore is being done on. I have tried using a different RA81 (unit 1 or 2 and also switching the unit plugs), using a different tape, restoring other file systems (/usr and others) and the system always hangs in the same spot. Now some more background info.... We have 2 UNIBUS's and the UDA50 is on a seperate UNIBUS from all of our communication lines. We also have a TU78 as our tape system. We are running a simular configuration on our 780 (3 RA81's, TU78, 4.2BSD) EXCEPT that system only has 1 UNIBUS and we never had to restore the filesystems from tape (we added the RA81 while we had a RP07 and simply copied from disk to disk). I haven't heard anything real helpful from DEC yet but I have read something on the net about a UNIBUS mapping problem (feature?) with the UDA50 controller. PS.... The system passes diagnostics (of course) and even runs the VMS exceptance tests when the machine was installed. HELP!!!!!! Steve Herber Bowling Green State U. osu-eddie!bgsuvax!herber