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  • CompuAdd 325tx HELP 'missing operating system' msg

    From dustinshelton2607@gmail.com@21:1/5 to Grant Newland on Wed Mar 1 20:52:05 2017
    On Wednesday, March 1, 1995 at 10:05:13 PM UTC-6, Grant Newland wrote:
    I have inherited a CompuAdd 325tx (1990) via a layoff at work, no disks
    or manuals, was able to reformat HD and build DOS/windows BUT ..

    only able to boot from floppy, then use C: normally. If boot from HD,
    I always get msg 'missing operating system' with no return at msg end,
    and hangs.

    My guess is something special is necessary, but can't guess what. If anyone has ever seen this msg on a CompuAdd laptop, please reply or post.
    Thanks in advance,

    Grant
    newland@gate.net
    3/1 late at night

    So interestingly, 22 years later, I have acquired a CompuAdd myself and have encountered the same issue

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  • From Computer Nerd Kev@21:1/5 to dustinshelton2607@gmail.com on Thu Mar 2 21:06:37 2017
    dustinshelton2607@gmail.com wrote:
    On Wednesday, March 1, 1995 at 10:05:13 PM UTC-6, Grant Newland wrote:
    I have inherited a CompuAdd 325tx (1990) via a layoff at work, no disks
    or manuals, was able to reformat HD and build DOS/windows BUT ..

    only able to boot from floppy, then use C: normally. If boot from HD,
    I always get msg 'missing operating system' with no return at msg end,
    and hangs.

    My guess is something special is necessary, but can't guess what. If anyone >> has ever seen this msg on a CompuAdd laptop, please reply or post.
    Thanks in advance,

    Grant
    newland@gate.net
    3/1 late at night

    So interestingly, 22 years later, I have acquired a CompuAdd myself and
    have encountered the same issue

    Perhaps it only boots from a specific partition regardless of
    the "bootable" flag. Or maybe it needs a special proprietary
    Master Boot Record format. Is the HDD configured peoperly
    in the BIOS (assuming that the settings can be modified)?

    Just some guesses.

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