Guys,


I searched everywhere I could to find references to this problem - but the 
only similar problem occurs on PC's that have hardware installed and are 
attempting to use the wring driver.....

The error is "Stray Interrupt: vector 0x18, ipl 31" and prevents bootup of 
NetBSD. The "autostart" prompt appears, but when attempting to install 
NetBSD ("boot sysinst"), the error repeats indefinitely.

I've attempted installation on both a 4000/300 and 4000/500A and get the 
same exact problem. Here's what I've done to try to isolate/work around this:

1) Removed all DSSI drives
2) Install terminators on all DSSI/SCSI ports
3) Removed/switched ethernet connection/media
4) Performed install on VAXStation to test CD
5) Installed NetBSD onto destination SCSI drive using MicroVAX - attempted 
boot of this drive on 4000's

The installation went perfectly fine on the VAXStation. Afterwards, I tried 
installation on the 4000's again - no luck. I then used a MicroVAX to 
install NetBSD from the CD onto the SCSI drive I was going to be using on 
the 4000/300. NetBSD installed fine, and I could boot from this drive using 
the MicroVAX. The 4000's would not boot from this drive - still giving the 
"Stray Interrupt" error.

The /300 has a TK70, but the /500A does not. I figured that since I was 
getting the same error on both, that the TK70 wasn't a factor.

Hmmm.........

Is there some device that needs to be removed? I can't think of anything 
else to remove.

Any ideas? Thanks!



         - Matt








Matthew Sell
Programmer
On Time Support, Inc.
www.ontimesupport.com
(281) 296-6066

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