SC-40 update

Cory Smelosky b4 at gewt.net
Thu Apr 16 19:11:10 CDT 2015


On Fri, 17 Apr 2015, Rich Alderson wrote:

>
> MFD (Master File Directory).  It's not quite the same internally as a User
> File Directory.  Also found in the tables, come to think of it.
>

Ahh. Thanks.

I assume you want me to look at FILDDT on the images copied to a TOPS-10 
system, correct, or is there a quick shortcut to FILDDT for a device?

>
> Umm, isn't an RM05 300MB vs. 200MB for an RP06 (real unformatted capacities)?
>

Yes, the disk image was 245M, identifies as an rp06 to the monitor 
(discovered through RECOGNIZE in OPR) which explains the BUGHLT. According 
to du -sh it seems not much beyond the first 20M or so is anything but 
blank.

>
> SimH only knows one disk format, the one that KLH10 calls "dlw8" (little-
> endian, 1 word in 8 bytes).
>

Thanks - that's a useful pointer.

>> No responses on alt.sys.pdp10, perhaps you can wake some people up? ;)
>
> I'll rattle the cage.
>

Thanks.

>
> OK, thanks!
>

No problem.

Happen to have any idea how to boot one from tape?  Copy a DEC bootstrap 
to the MSP disk and pray it considers one of the SCSI drives as a 
supported drive?

>                                                                Rich
>
> Rich Alderson
> Vintage Computing Sr. Systems Engineer
> Living Computer Museum
> 2245 1st Avenue S
> Seattle, WA 98134
>
> mailto:RichA at LivingComputerMuseum.org
>
> http://www.LivingComputerMuseum.org/
>

-- 
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects


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