> > > https://uefi.org/specifications > current is UEFI Specification Version 2.9 (March 2021) > > https://uefi.org/sites/default/files/resources/UEFI_Spec_2_9_2021_03_18.pdf > although i still read > https://uefi.org/sites/default/files/resources/UEFI_Spec_2_8_A_Feb14.pdf > when it comes to discussions. > > You are right, but OP asked for "newbie instructions" on how to multiboot Debian and Windows.
> > Harddrive is GPT-labeled and it has a partition with a special EFI flag. > > It may also be partitioned by an MBR partition table. > (UEFI 2.8, 5.2.2 OS Types: > "0xEF (i.e., UEFI System Partition) defines a UEFI system partition." > ) > AFAIK it is up to firmware to support MBR or not. Even more fun: firmware _may_ support any filesystem including NTFS or ext3, but every modern firmware _must_ support GPT and Fat32.
