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  1. #1
    Star Lounger
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    dual boot DOS on a separate partition

    I have a very old DOS app which I need to run. It seems to require a drive smaller than 500-odd MB.

    I want to dual boot my laptop NT4 and DOS6.22.

    [-A-] If I install DOS on the first partition and NT on the second it works fine, it just looks strange that the installation drive for NT is D:. Given that NT can see the DOS drive (and I want to keep it that way) it is counter-intuitive that the C: isn't the "default drive".

    [-B-] If I install NT on the first partition (as NTFS) and DOS on the second, both work fine EXCEPT I can't get DOS to run from the NT boot loader, and instead I have to use FDISK to toggle the active partition.

    [-C-] If I install both on the first partition, it works correctly, except that since I am obliged to keep the partition less than 500MB (528, I think it is), it gets a bit restrictive after you add a page file, a suspend to disk file, NT, etc. I think this makes the arrangement impractical (the drive is full already, without any of my Windows apps loaded).

    I would like to see the NT drive as C: if possible.

    In my view, [-A-] is ugly and [-C-] is impractical (and also quite ugly), hence option [-B-] above is my preferred layout, but can anyone advise how I can edit boot.ini to boot to DOS on the second partition when the first is NTFS? Alternatively, can I be creative with FDISK to make NT think it's on the C:?

    None of the following work in my boot.ini with DOS on the second partition:
    multi(0)disk(0)rdisk(0)partition(2)="MS-DOS"
    C:="MS-DOS"
    D:="MS-DOS"


    Thanks in advance for any pointers
    Martin

  2. #2
    New Lounger
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    Re: dual boot DOS on a separate partition

    [-A-] I use the same config with no problems
    [-B-] true
    [-C-] You can make a partition up to 2Gb using fdisk from Win98. When you launch fdisk chose NO at question about large disk support (this means that the partition will be FAT16).
    [-D-] I don't used, but you can try "Partition Magic" to modify partitions after you install the OS.

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