Re: "Double Exception from CPU 0" on Alpha 4100 DRA0 boot
- From: "H Vlems" <nospam@xxxxxxxxxxxxx>
- Date: Mon, 26 Dec 2005 23:33:14 +0100
"Schnootling" <chuckm@xxxxxxxxxx> schreef in bericht
news:1135555879.685682.270870@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Hello Folks,
>
> As the subject says, I'm getting a double exception from CPU 0 when I
> boot from DRA0. From what I can tell, the install of VMS and the
> LICENSE REGISTER of VMS all went well. (The reason I'm mentioning this
> is: I don't know what VMS says when it's booted and the LICENSE is
> invalid - maybe it double excepts at CPU 0.)
>
> I checked this group's correspondence and the closest thing I found was
> Jan 10, 4:53 pm by Tom Crabtree
>
(http://groups.google.com/group/comp.os.vms/browse_thread/thread/54134e495e9
5368d/cb5b5c51616da0d2?q=double+exception+from+CPU+0+&rnum=1#cb5b5c51616da0d
2)
>
> which didn't seem particularly applicable to me.
>
> >From what I can see:
> - DRA0 (ALPHASYS) is the right boot disk.
> - The system does say a "valid boot block was found".
> - Not a lot of IO activity goes on before the exception (SBB light
> doesn't flash).
>
> Anyone got any ideas or suggestions ?
>
> Chuck
>
It's definitely not a license problem: VMS always boots but you won't be
able to use any other way to get in other than thru the console port. A
double exception IMHO is either caused by an unsupported SCSI controller or
(on white box Alpha's) the NVRAM lost the magic incantations. On a 4100 the
latter is unlikely so it's got to be the SCSI controller. Does the 4100 boot
from a 50 pin SCSI-2 disk on the on-board controller?
.
- References:
- "Double Exception from CPU 0" on Alpha 4100 DRA0 boot
- From: Schnootling
- "Double Exception from CPU 0" on Alpha 4100 DRA0 boot
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