[Simh] Devices and device names in simh?

[Hittner, David T.]

No, you can't rename the device at the SIMH level. I've had this problem
before, with both real and SIMH VAXes.

Use a system logical in VMS system startup to define a synonym for a
similar device: Example:
 $Define/System/Exec dia0 dua0:

You need to be careful about using the colon; sometimes it works and
sometimes not - after a  little experimentation you will get it right.
Depending on VMS version and use, the synonym may also require a
preceding underscore.

If you can't figure out the syntax, email me, and I'll dig a real DIA0
synonym out of my VMS system archives.

Dave
 

-----Original Message-----
From: simh-bounces at trailing-edge.com
[mailto:simh-bounces at trailing-edge.com] On Behalf Of Edward Berry
Sent: Wednesday, July 11, 2007 5:09 PM
To: simh at trailing-edge.com
Subject: [Simh] Devices and device names in simh?

Dear all,
I am restoring a historic (well, to me at lest) vax configuration from
stand-alone-backup tape to the simulator.
It seems to be working, but how much flexibility do I have in device
names?

In the original configuration, the system disk was DIA0.
After googling I understand the naming convention a little, and
apparently DIxx is a disk mounted in a DSSI cabinet, not on the local
scsi bus.

I read the tape on a linux machine, enblocked it and mounted as MUA0,
and restored the system disk with backup/image. No errors.

Then I attach the restored system disk as DUA0: and boot it.
Amazingly it actually came up and let me log in with system password.
But there were lots of error messages.
Most serious had to do with device names: DIA0-1 and the ethernet
adapter which in the orig machine was (#VMS_Device se0) EZA0 on simh it
is XQA0:

For the sake of an authentic restoration, and to save me from editing
all the config files, is there any way to have a disk image mounted as
DIAx, and to have the enet adapter be EZAO?

Thanks for any suggestions,
Ed
_______________________________________________
Simh mailing list
Simh at trailing-edge.com
http://mailman.trailing-edge.com/mailman/listinfo/simh