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WDe and GPT, booting DOS (Users)

posted by Zyzzle, 02.11.2022, 06:43

> > > The problem with making such low-level stuff public is that it's only
> > > useful for people who know exactly what they are doing. If interested,
> I
> > > can send you a copy via PM.
> As I am running FreeDOS (not DOS71) there is no DOS71BSG.BIN - is it
> possible to proceed further (with FreeDOS), and if so, how?
 You must compile the source posted above with JWASM compiler. Also, If you want to only run FAT32, you'll not need DOS71BSG.BIN, which will be created from the compiled source's binary .COM file.

DOS7!BSG is only useful if you're running DOS 7.1 and want to boot from a primary GPT partition. You're going to overwrite your bootsector with the binary data in DOS71BSG, which allows GPT paritions to be booted in DOS 7.1. But, that's not all. You need to also modify the offsets, as described in the README on the github source code site, in order to get it working. It's an advanced tool / hack, and as far as I know doesn't and isn't intended to work with FreeDOS.

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