Burnable, patched Microvax-2000 SCSI-boot EPROM images?

[Jonathan Stone]

 A web-page I found over the weekend said M27512-2, but right now i cannot find it. Several sources say 256KB PROM, and the photos show 4 EPROMs, which is consistent with 64Kx8-bit. I have to dash now, more in a few hours.
     On Monday, September 20, 2021, 02:24:51 PM PDT, <dave.g4ugm at gmail.com> wrote:  
 
 Do you know what type of ROM/PROM is needed 

Dave

> -----Original Message-----
> From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Jonathan Stone
> via cctalk
> Sent: 20 September 2021 20:02
> To: cctalk at classiccmp.org; port-vax at netbsd.org
> Subject: Burnable, patched Microvax-2000 SCSI-boot EPROM images?
> 
> I recently rescued two Microvax-2000s but both have dead RD53s.  Does
> anyone have a ROMable image of the Microvax 2000/Vaxstation 2000 boot-
> PROM patches from Wolfgang Moeller
> at http://ftp.gwdg.de/pub/vms/pk2k/ ?  I'm looking to install NetBSD, not
> VMS and I don't have any VMS systems on which to run PATCH.  Microvax
> 2000 specs say it can sustain 3.3MB/s I/O, which has to be via the SCSI
> interface.  So a SCSI emulator should be significantly higher performance
> than an MFM drive (either 30+ year old drive, or emulator).
> 
> Web-searching shows a Sean O'Banion has burned the PROMs successfully; I
> haven't yet found other names.
> If someone is willing to burn at least one set of EPROMs for me, I'd pay for
> the service (either ship EPROMS, or pay for them).
> 
>