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Thread: XEROX 820-II 5.25 boot disks in .imd for 5.25 disks

  1. #1

    Default XEROX 820-II 5.25 boot disks in .imd for 5.25 disks

    Does anyone have .imd files for boot disks for xerox 820-II in 5.25" 40trk format?

    Not at dunfield.

    I've got a working 820-II with 8" drive system and now trying to get 5.25" drives to boot.
    These are Shugart SA455 drives so they are double sided
    but guessing it will boot single-sided versions also.
    ROMs are V4.0 in this machine.

  2. #2
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    I'll look to see if I've got them in my stash. Looking at my lists, I see that there were several different versions of the 5.25 boot for the 820-II. Some single-sided, some double-sided; most with 17x256 byte tracks, but at least one with 18x256. I'll have a look and see if I can come up with a candidate.

  3. #3
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    There are several system disks in the Don Maslin archive, albeit in TD0 format. You can use TD02IMD.COM to convert them to IMD format. Try the 5dsys-ii.tdo image to start.

    http://www.classiccmp.org/cpmarchive...Fsydex%2Fxerox

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    Ah, that saves me from some physical looking--I'd forgotten that I passed a bunch of images to Don back in the day...

    If none of those work, let me know--I've got more.

  5. #5

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    Great Idea, I'll start looking at the maslin archive.

    LK also made me 3 images and 2 of them BOOTED!!!
    This tells me my drives and cabling are good. Nice progress. Thanks LK.

    The double-sided image wouldn't boot.
    I'm wondering if there's something with my hardware or ROMs that doesn't handle that.
    These are Xerox V4.01 ROMS and my controller has a 1797.
    Any Xerox 820-II guru's out there?

  6. #6

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    Quote Originally Posted by Ragnarock View Post
    The double-sided image wouldn't boot.
    I'm wondering if there's something with my hardware or ROMs that doesn't handle that.
    These are Xerox V4.01 ROMS and my controller has a 1797.
    Any Xerox 820-II guru's out there?
    Could it be the double-sided image was not sysgened?

    I used to work for Xerox on the 820-II and 16/8 team (Mockingbird Towers, then Lewisville), but I have slept since then.

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