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I finally got round to publishing a version 1.0 of my long-running hobby project: a bootable DOS live USB image with tools for writers, providing a distraction-free writing environment.

github.com/lproven/usb-dos

This is very rushed and the instructions are incomplete. Only FAT16 for now; FAT32 coming real soon now.

Usable DOS-based live USB media. Contribute to lproven/usb-dos development by creating an account on GitHub.
GitHubGitHub - lproven/usb-dos: Usable DOS-based live USB mediaUsable DOS-based live USB media. Contribute to lproven/usb-dos development by creating an account on GitHub.
Pendell

@lproven @foone What a lovely project! I'll definitely have to stick this on an old flash drive or better yet something weird like a FAT32-formatted DVD-RAM disc to ensure it breaks 🤣 which then makes me curious if adding external devices to save to is supported?

Cool as heck project!

@pendell @foone Thanks!

I have experimented quite a bit since I started fiddling with this. I had the FOSS DR-DOS Enhancement Project disk images booting in VMs back then:

liam-on-linux.livejournal.com/

So, yes. This disk image boots fine in a VM and it should run fine if copied to a primary partition on HDD or SSD. (You'll need to `FDISK /MBR` the whole drive, though.)

If it's presented with additional readable volumes, it will mount them as drives D:, E:, F: etc.

I haven't tried booting it from an optical disk, but it should do. Then it could access any FAT volumes.

The thing to beware of is this: the BIOS is doing the heavy lifting of translating USB devices for DOS. It *won't* be able to access additional USB drives on its own. If they're present for the BIOS to enumerate when DOS boots, _maybe..._ but I wouldn't count on it.