20 Sep
2021
20 Sep
'21
2:44 p.m.
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).