> GPT support? Do people also work on UEFI integration? ;-)
GPT support is actually easy; just less then 100 lines in the disk
initialisation. In contrast, UEFI would be hard. Really hard.
Hpwever not impossible.

> (That would be *mad*, if only for the cool factor.
> Except that many DOS apps would fail to work, due to the missing 
> legacy BIOS services, also not sure how far the CPU real mode would 
> be feasible under 64bit UEFI etc. 
as I understand it, 32bit protected mode is possible from 64bit UEFI.
so some sort of EMM386 operation would be possible.

few DOS systems rely on real mode these days.

> Sounds moot.)
+1

Tom

> Frank

>> 
>> Hi!
>> 
>> While there is a hardware difference in how you
>> control more than 2^28 sectors (128 GB) FreeDOS
>> is only limited by the BIOS LBA support and at
>> the moment by MBR partitioning, which is limited
>> to 2 TB disk size. However, people have already
>> been working on GPT partitioning support :-)
>> 
>> Eric
>> 
>> 
>> 
>> > FreeDOS supports Logical Block Addressing for hard disks up to 128
>> > GB or even 2TB depending on the BIOS used However, some BIOSes might
>> > have bugs for disks larger than 32 GB, but you could use drivers
>> > like OnTrack or EzDrive to help resolve this issue
>> > 
>> > On Fri, 10 Jan 2025, 11:18 Michał Dec via Freedos-user, <
>> > freedos-user@lists.sourceforge.net> wrote:
>> > 
>> >> Hello everyone,
>> >>
>> >> What is the size of LBA supported by FreeDOS? I'm asking because I
>> >> have a PC with 7 CF slots and I want to know if I can put FreeDOS
>> >> on a 256GB card or do I have to limit that OS to 128GB.
>> >>
>> >> Best regards,
>> >>
>> >> Michał Dec
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Freedos-user mailing list
>> Freedos-user@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/freedos-user




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Mit freundlichen Grüßen / with kind regards
Tom Ehlert
+49-15151898538



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