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Running ST-DOS on Book8088 (Developers)

posted by Oso2k, 27.02.2024, 23:03

> I am interested in seeing ST-DOS ran on a Book8088. I don't have one of
> those machines myself, so I cannot investigate how it works, but I want to
> make a bootable USB storage image for it.
>
> Because it does not have other storage I/O than the USB port for USB
> storage sticks, and it is an XT-class machine so its BIOS probably does not
> support LBA, I need to know how it detects the geometry of the USB stick.
> Usually all USB images of modern operating systems only use LBA, because
> they assume that the BIOS supports it. That's also what the current USB
> storage image of ST-DOS does.
>
> The FAT filesystem is very dependent on the geometry of the disk, so the
> problem is that the same filesystem image does not fit all USB storage
> sticks.
>
> Does the BIOS call int13,8 work normally for the USB drive? In that case it
> should be possible to write a bootloader that adjusts itself to the
> geometry that is returned by the BIOS.

Book8088 boots off a CompactFlash slot with XT-IDE BIOS add-on. You can see comparisons between my Dell 316SX (i386) and the Book8088 here - https://www.bttr-software.de/forum/forum_entry.php...p;page=0&category=all&order=last_answer

I included output from BIOSDRVS.COM that comes with XT-IDE. https://www.xtideuniversalbios.org/binaries/r625/biosdrvs.com

 

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