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Thread: History behind the disk images of AT&T UNIX System V Release 4 Version 2.1 for 386?

  1. #21
    Join Date
    Sep 2006
    Location
    Silicon Valley
    Posts
    1,817

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    Quote Originally Posted by alecv View Post
    I
    Was the AT&T 6386 compatible with conventional PC or not ?
    Yes, it will run stock IBM DOS 4.0. The machine was built by Olivetti

    It uses a western digital ESDI disk controller and a Paradise VGA

    I think they modified the DOS for the diagnostics. The images on the NCR
    website weren't bootable so I copied them to a DOS 4.0 system that I had
    but they didn't seem to work quite right. I ended up using the Western Digital
    wdfmt formatting program to initialize the disk. The BIOS setup program from the
    NCR disk did set up the CMOS. I had to do some digging around to find the
    drive table. It is in the Olivetti PC guide. IBMIO.COM on the diags has an ATT
    copyright

    AT&T Information Systems
    June 1986
    Authors
    Joann F. Doyle - AT&T IS Freehold, N.J.
    James R. Rankin - AT&T IS Freehold, N.J.

  2. #22
    Join Date
    Feb 2010
    Location
    Russia, St.Petersburg
    Posts
    192

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    JFYI: There was yet another "branded" SYSVR3 from the Wyse, but earlier version 3.2.1A
    It was virtualized recently.
    https://virtuallyfun.com/wordpress/2...again-sort-of/
    https://virtuallyfun.com/wordpress/2...-challenge-ii/
    https://virtuallyfun.com/wordpress/2...x-virtualized/

    It has a full SGS package (on the tape image, record 00003)
    Code:
    C Software Development System 4.1.5 3/31/88
    P.S.
    There was also yet another "branded" SYSVR4 (4.0_2.2) from DELL
    https://virtuallyfun.com/wordpress/2...x-lives-again/
    https://technologists.com/notes/2008...-of-dell-unix/

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