Well, coreboot opensource x86 firmware will help you! The default coreboot's payload is SeaBIOS - a modern legacy-style BIOS written on C, without any UEFI crap. In addition, thanks to opensource - you can finally trust that your BIOS doesn't have the backdoors / holes / broken code hastily written for a bowl of rice by the lowest bidder.
Of course, not every hardware is suitable for coreboot, so you'll have to buy anyways. Personally, I can recommend the AMD boards without a PSP hardware backdoor: Lenovo G505S laptop with A10-5750M, ASUS A88XM-E desktop with A10-6700 / A10-6800K, and ASUS AM1I-A mini-ITX micro-desktop with Athlon 5370 - which may be a close match for your single-board-computer requirement (it has LPT, COM, etc.) More information can be found on the Internet (i.e. the manuals on DangerousPrototypes website), or you can just ask me. чт, 2 мар. 2023 г. в 00:47, Ben Hutchinson <benh...@gmail.com>: > > 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 > > _______________________________________________ > 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
