Fritz,
One thought crossed my mind, probably not an issue, but you never know.
You mentioned that you have an RK11-C, *not* RK11-D.
There are one or two bits in a register of the RK11 that have a different
meaning/function, depending on the controller being a -C or -D. The RK11-C was
quickly replaced by the RK11-D, but I guess RSTS would know the difference.
Other guys here will be able to give a lot better light on this than me (Paul?)
A Healthy 2019!
Henk, PD8PDP
________________________________
Van: cctalk <cctalk-boun...@classiccmp.org> namens Fritz Mueller via cctalk
<cctalk@classiccmp.org>
Verzonden: Monday, December 31, 2018 11:47:23 PM
Aan: General Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: PDP-11/45 RSTS/E boot problem
> On Dec 31, 2018, at 1:54 PM, Paul Koning <paulkon...@comcast.net> wrote:
>
> The standard idle pattern is in the data lights. I don't remember if the
> "fancy" pattern appeared in V7.0 or earlier, but in any case it's an
> undocumented SYSGEN option.
>
> In RSTS/E, the display register shows the system error count. That's from
> I/O errors reported by the various drivers.
>
> Do you have a second disk pack? If so, you could use the DSKINT option in
> INIT to initialize a pack, with pattern tests. That would show what the RSTS
> disk driver thinks of your RK05.
>
> Something else you might try: when you start the system, don't enter
> line-feed for the quick start, but the START command. That is a more verbose
> version which will display some additional messages. If anything is getting
> disabled, it would show there.
Thanks, Paul — that’s a bunch of helpful info!
I have done some long-form starts, but no complaints are printed to the console.
I do have an additional as-yet-untried pack that I got in a recent eBay option.
I’ll give it an inspection and if its good to go I’ll give the pattern DSKINT
a try. I only have one RK05 drive working at the moment, but I suppose I can
swap after issuing “DS” to the “Option:” prompt?
I’m also gearing up to throw the logic analyzer on the RK11 and see what
sector(s) it is trying to read and what error/interrupt signaling may actually
be happening.
Last, any more info on that fancy light sysgen option, for future reference in
case I ever get on to a later version?
cheers,
--FritzM.
