On Fri, Jul 29, 2016 at 6:08 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: > I just got a MicroVax II in the BA123 world box chassis. I has a TK50, > RX50, RXDQ2, but no DEQNA. I'd like to get it running an OS. > > The DU disks don't work, but I have a couple of Qbus SCSI controllers that > might come in handy. > > What OS's can I use with this hardware? NetBSD? Are versions of VMS > available? How do you get an OS onto this system?
What Qbus SCSI controllers do you have? The CMD CQD-200 CQD-220, Dilog SQ706A, Emulex UC07 I have tried were all able to boot from an appropriate SCSI CD-ROM drive. That how I usually go about installing OpenVMS 7.3 on a Qbus VAX. I never got around to picking up a SCSI-SD adapter yet. I just use old fashioned rotating drives, although they are 68-pin drives with 50-pin adapters. I have a BA123 that I maxed out as a something close to a VAXstation III/GPX. Replaced the M7606 KA630 with a M7625 KA655. There are only 4 Q22/CD slots so normally you can only have 48MB using 3 M7622 MS650 16MB boards plus the CPU. I found a couple of third-party 32MB boards to max out at 64MB. Added a (2x) M7168 + M7169 VCB02 set for the GPX graphics. The BA123 is an interesting item for DEC collectors and I'm glad I was able to pick one up, although it's been a while now since I last powered it up.
