[Info-vax] booting vaxstation off alpha

[Bob Koehler]

In article <kf30jt$bhj$1 at Iltempo.Update.UU.SE>, Michael Grunditz <micken at Update.UU.SE> writes:
> Hi
> 
> Is it possible to networkboot a vaxstation from a alpha? Or do I need to setup simh ..
> I have a VAXstation 4000-60 without disks.

   Yes.  Early versions of VMS for Alpha did not support it, but all
   current versions do.  Your Alpha will need two system disks:  one
   to hold VMS for the Alpha, and one to hold VMS for the VAX.

> 
> Btw, does simh run on VMS? :)

   Yes, I have ported SIMH to VMS on my Alpha and booted VAX/VMS on
   that copy of SIMH.   Mostly it was the following kind of changes:

   "#ifdef UNIX" becomes "#if defined(UNIX) || defined(__VMS)"

   (and all the variants on the above).  The C RTL seemed to take care 
   of almost everything else.

   It was years ago, and not the current version of SIMH.  I did the
   same for porting SIMH to Mac, but I've read that later versions of
   SIMH did not port so easily to Mac.  I understand the current version
   does.

   I didn't keep either.  It's much more fun to simply boot my real VAX 
   into my cluster, than to simulate it elsewhere on my cluster, or in 
   another room on my Mac.  I do carry SIMH around on a Lenevo laptop, 
   but I don't run it much.