Le 06/05/2017 à 05:59, Felix Miata a écrit :
The primary purpose of a boot flag is to be found by DOS/Windows/legacy-compatible MBR code, which can only make use of it if found on a primary partition that also contains a bootable filesystem or other bootloader code in the partition's PBR. A secondary purpose of a boot flag is for legacy operating systems to determine which primary partition is to be assigned a drive letter.
Another purpose of a boot flag is to allow booting with broken BIOS which require that the boot disk has a partition table which defines a primary partition with the boot flag.