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Thread: IBM Tandon TM100-2A Floppy Drive Format ?

  1. #11
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    What happens if you use the /1 switch?

    FORMAT A: /F:180 /1


    Larry

  2. #12
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    Do a plain old single-sided FORMAT without the system parameter and look at the disk usage summary.

    My guess is that you probably have a number of bad clusters early on in the floppy.

  3. #13

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    Hey guys, sorry for the delay. I finally had some time to try out all of your suggestions. Here are the results:

    Quote Originally Posted by Stone View Post
    Have you tried running the two operations independently?

    E.g.,

    FORMAT A: /F:180

    then,

    SYS C:

    This can sometimes work better than the other way.
    I think you meant to type SYS A: and not SYS C: as that would of copied the system files to the C: drive and not the floppy. Format A: /F:180 went well but after typing SYS A: I get error "Could not copy COMMAND.COM to target disk"



    [QUOTE=ldkraemer;602980]What happens if you use the /1 switch?

    FORMAT A: /F:180 /1

    I get Parameter not compatible. Format terminated. (FORMAT A: /F:180 /1)



    Quote Originally Posted by Chuck(G) View Post
    Do a plain old single-sided FORMAT without the system parameter and look at the disk usage summary.

    My guess is that you probably have a number of bad clusters early on in the floppy.
    Please see attached image of a FORMAT A: command with a brand new 360K floppy disk.

    Format.JPG

  4. #14
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    Quote Originally Posted by MaCJaX View Post
    ...
    Please see attached image of a FORMAT A: command with a brand new 360K floppy disk.

    Format.JPG
    On a single-sided drive? Remarkable!

  5. #15

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    Quote Originally Posted by MikeS View Post
    On a single-sided drive? Remarkable!
    And that's only one side of the story.
    PM me if you're looking for 3½" or 5¼" floppy disks. EMail “ ” For everything else, Take Another Step

  6. #16

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    DOS 6.22 is wasteful when doing format /s. It always tries to stick drvspace.bin on there, just in case you’ve compressed your HDD. If you do a dir /a you’ll see it. I’m not sure if there is an easy way to keep it from doing it. I haven’t tried yet. But I will now.

    Edit: ok I figured out how to do it. If drvspace.bin exists at c:\ or c:\dos, or probably anywhere in the path, then delete it (or rename it, etc). Then when you format /s or sys the disk it will work.

    5E0EF7A5-6CFB-426A-B29E-57E506835B88.jpeg
    Last edited by jafir; January 18th, 2020 at 08:47 PM.

  7. #17
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    DOS 6.22? Try FORMAT A: /F:180 /U

    Otherwise, DOS will try to use any format already existing.

  8. #18

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    Quote Originally Posted by Chuck(G) View Post
    DOS 6.22? Try FORMAT A: /F:180 /U
    The issue they’re having with 6.22 is that the system files won’t fit when he formats a single sided floppy. It’s because of the mostly useless drvspace.bin

  9. #19
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    Are you certain? One can always copy over MSDOS.SYS and IO.SYS and COMMAND.COM manually.

  10. #20

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    I’m certain, I tried it. And then I posted the work around showing that it works after renaming drvspace.bin

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