On Sat, Oct 7, 2017 at 3:46 PM, Didier Kryn <k...@in2p3.fr> wrote: > Then maybe I misunderstood the reason for EFI.
UEFI is a huge step forward in pretty much all areas and makes booting both simpler and more powerful. Grub on BIOS basically works like this: the one MBR is read by BIOS and executed (512 bytes!). That contains code to chain load some more code (usually from a fixed set of sectors on disk!). That is phase 1 of the boot loader. That has enough smarts to find a hard-coded partition and read phase 2 from there. Phase 2 will then load a ton of modules and some configuration files and do the actual work. With UEFI the firmware just loads a efi binary with everything:-) MUCH simpler. UEFI has a couple more features: * UEFI allows for better hardware support (graphical login at full resolution, mouse support, RAID drivers, etc.) * UEFI allows for more security with secure boot. E.g. my thinkpad *only* boots things that I have signed with my key. * UEFI allows for different OSes living next to each other peacefully, without the constant fight over who writes the MBR and with that defines the boot loader. Best Regards, Tobias _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
