On Sat, Nov 10, 2012 at 1:07 PM, Kevin O'Connor <[email protected]> wrote: > On Sat, Nov 10, 2012 at 11:30:39AM -0800, Jordan Justen wrote: >> On Sat, Nov 10, 2012 at 8:25 AM, Thorsten Glaser <[email protected]> wrote: >> > Kevin O'Connor dixit: >> >>1 - Using SeaBIOS as a CSM. The CSM spec is amazingly complex as >> > >> >>2 - Implementing in SeaBIOS a subset of the EFI OS interface so that >> > >> > Both aren’t really what I want. >> >> It sounds like you definitely don't want 2, but you do want something >> similar to 1. In a UEFI+CSM system, the CSM essentially provides the >> environment that legacy BIOS based software can use. > > I don't think one can add a CSM to an existing machine though.
I think you could load it similarly to an OS, but what you load would probably require some chipset/platform knowledge. > So, if > you're looking to boot DOS from a machine with an off-the-shelf UEFI > implementation without a CSM then I don't think adding a CSM will > work. Yes, I think you are correct, due to the chipset/platform legacy pieces that likely aren't provided in a non-CSM UEFI system. -Jordan _______________________________________________ SeaBIOS mailing list [email protected] http://www.seabios.org/mailman/listinfo/seabios
