What legacy OS Either DOS or directly on bare metal. It needs to start in 16bit real mode though for either of these to work. UEFI I think starts in 32bit protected mode (likely in ring3, so you never really can get hardware level access to the computer). This is why it needs legacy BIOS support, so it starts in 16bit real mode.
On Wed, Mar 1, 2023 at 12:11 PM John Vella <john.ve...@gmail.com> wrote: > I don't know if this is any help but I am currently installing FreeDOS > using PCem, on an Atom based Stick PC. > > What are you planning on using the legacy os for? > > On Wed, 1 Mar 2023, 19:20 Ben Hutchinson, <benh...@gmail.com> wrote: > >> I found what seemed to be a good Intel x86 based SBC over at >> https://up-shop.org/up-squared-series.html but there was one problem. It >> mentioned only a UEFI firmware. Nothing about supporting legacy BIOS. I >> know my laptop can switch between UEFI and BIOS by changing the firmware >> settings (go into the firmware menu by pressing F2 at bootup). But the lack >> of mention of legacy BIOS support worried me. So I emailed them and asked. >> And unfortunately, as I was worried, this was their answer: >> "For the product now it’s all supported with UEFI BIOS. No legacy BIOS >> supported." >> >> So, I would like to run DOS on an SBC, but with a UEFI only system, >> that's not possible. >> _______________________________________________ >> Freedos-user mailing list >> Freedos-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/freedos-user >> > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user >
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