17 Aug
2015
17 Aug
'15
7:23 p.m.
The Executive shipped with CP/M Plus 3.0, in SSDD format. The Osborne
1 required a double-density option to read DD disks. I don't recall that
the CP/M Plus 3.0 would even run on the Osborne 1, at least not on my
systems. Depending on whether the double-density option is installed on
his machine, it might require someone with a system that will write a
single-density boot disk for him.
On Mon, 17 Aug 2015, Sean Caron wrote:
...
I have a mostly working Executive ... logic is OK but the screen will roll
when the environmental conditions are just right (probably some caps are
getting dodgy, or a cold solder joint) ... it's usable ... I have all the
original media and documentation; plenty of bootable floppies; I've got a
sleeve of 5.25" blanks and I could run off a few duplicates for you ... not
sure if these will work on the Osborne 1 ... if you're in the USA and you
want to give some of the media from the Executive a shot, maybe I could
help you out.
Best,
Sean
On Mon, Aug 17, 2015 at 1:48 AM, drlegendre . <drlegendre at gmail.com> wrote:
> Thanks for the input, gents..
>
> Sigh.. and here I sit, yet again, with neither a logic analyzer nor a
> decent digital scope. Unless something comes up, looks like I'll have to do
> it the hard way, as usual - heh.
>
> At least the machine doesn't have a totally scrambled brain, with the
> correct CPU - so it will be easier to work through things, as I can at
> least partially communicate with the hardware if needed. Well, except for
> the lack of bootable media..
>
> Anyone have a spare Z-80? Or some bootable media for the Osborne 1? I have
> a few CP/M machines here, but I don't think any of them can write media for
> the Osborne. Even so, I'd need a way to get the Oz disk images to the
> machine of choice.. and that's another huge hurdle.
>
> Help a brother out.. I need some bootstrap media!! ;-)
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://q7.neurotica.com/Oldtech/