On 2014-12-28 18:59, Mark Pizzolato - Info Comm wrote:
On Sunday, December 28, 2014 at 9:48 AM, Johnny Billquist wrote:
On 2014-12-28 18:02, Anders Magnusson wrote:
But; when this was done virtually no big VAXen were still running, so
the support for them may have bit-rotten. This is what Johnny always
encounters when he tries to power up his 8600 ;-)
Heh... Yes, which is why I also keep a copy of boot on the RL02...
But booting of my 8650 usually works fine, using VMB. But since I don't
often upgrade boot blocks, things occasionally are messed up in current
without me noticing.
Things have become easier to spot since simh added support for the 86x0
machine, as I occasionally try more odd things that way.
Note that NetBSD will not boot on an 86x0 machine with more than 64MB of
memory at the moment. Something broken that I have not had time to look
at.
Calvin Miracle also noticed that the VAX780 had an issue booting/running NetBSD
6.1.5 with some devices when the system had more than 64MB of memory. Maybe
this is the same problem:
Very likely.
More than 64M main memory appears to make RQ undetectable. NetBSD needs
to be initially installed to RQ disks. RP disks are detected, but
cause a panic under fdisk. ; More than 64M main memory appears to make
RQ undetectable. NetBSD needs
to be initially installed to RQ disks. RP disks are detected, but
cause a panic under fdisk.
Please let us know...
Yes. That sounds like the same problem. But this is a NetBSD-specific
problem. VMS boots fine under simh with more memory configured.
So; bottom line: If installing NetBSD on a non-MicroVAX machine, it
is a safe bet to put the boot program on console media :-)
Agreed. It helps. But it also required that you know a bit more of how you do
what...
Also, if booting older machines using VMB, you need to know the magic bits
of R5, since it requires the same treatment as Ultrix. R5=0 will not boot
NetBSD (or Ultrix).
With the latest simh version (and the VMB.EXE it contains) an R5=0 boot will
work fine for both NetBSD and Ultrix on all the older VAX models.
Yes. (But I prefer posting information that works right both in simh and
on real hardware, when possible...)
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: [email protected] || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
Simh mailing list
[email protected]
http://mailman.trailing-edge.com/mailman/listinfo/simh
