• old IBM ThinkPad boots fine from a CDROM with DOS 5 but doesn't from HD

    From R.Wieser@21:1/5 to All on Sat Sep 26 17:01:31 2020
    Hello all,

    I've got a IBM ThinkPad A21e here, and thought that it perhaps could do something for me with DOS 5 installed on it.

    So, I booted from a CD with DOS 5 on it, created a bootable primary
    partition and did a "format /u /s" (unconditional, copy system files) on the newly-created C: partition.

    Alas, after rebooting all I get is a non-responding system with a blinking cursor in the upper-left of the screen.

    The thing is that I can't remember anymore what caused or how to fix it.
    I could do with a bit of help. :-)

    Regards,
    Rudy Wieser

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