Rover wrote: > > Wish Intel would create a BIOS emulation layer for booting DOS/FreeDOS > > via EFI/UEFI. Ridiculous EFI/UEFI has no emulation layer for booting > > older operating systems! [..] > > However, all likely outside the whelm [realm?] of FreeDOS.
Ralf Quint wrote: > Indeed. It would technically not impossible to create a boot "OS", that > boots on a UEFI system, and then provides a BIOS emulation layer to > allow for DOS (or other disadvantaged OS) to boot. But it is technically > rather challenging for any outsiders to create something like this, as > it requires to support all the various low level hardware out there > these days.... +1 This would require creating some kind of UEFI "shim" that boots the PC, provides BIOS services, then loads FreeDOS within that context. It's not impossible, but very very hard (requires a ton of effort) because you need to replicate the environment services that were provided by default through hardware on a classic PC using BIOS. UEFI actually provided this kind of emulation using "Legacy" mode. But that support was dropped by Intel around 2020. It's UEFI-only since then, no "Legacy" support to provide any kind of BIOS. One workaround (used on some HP laptops) is to book a minimal Linux environment, then launch a virtual machine like QEMU to boot FreeDOS. But this loads an operating system just to load another operating system. I suppose if you need hardware that is dedicated to running DOS, that's a solution. _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
