On Sat, 28 Jan 2017 12:11:28 -0500, Alan Grimes wrote: > >> Device Start End Sectors Size Type > >> /dev/sdc1 2048 264191 262144 128M EFI System > >> /dev/sdc2 526336 537233407 536707072 255.9G Linux filesystem > >> /dev/sdc3 264192 526335 262144 128M BIOS boot > > You don't have a BIOS boot partition on a UEFI system. They are for > > compatibility when using GPT disks with BIOS systems, and even hen you > > don't put anything on them. > > > > Just create an EFI System partition, formatted using FAT and mounted > > at /boot as the first partition, then divide the rest of the disk > > between /, /home swap as you see fit. > > It appears to be a 2-stage boot process: > > BIOS boot -> Binary of GRUB bootstrap loader.
You don't have a BIOS with a UEFI system. > Boot -> Grub libraries, config, and kernels. The boot manager in the firmware picks an EFI boot image from the ESP, usually sda1. Once it loads that it's job is done. The boot image can be a kernel or a secondary bootloader like GRUB. Really, there is rarely a point in using GRUB on a UEFI system. Any bootloader adds extra complication, GRUB does it in spades. Just use a boot manager like rEFInd or systemd-boot - the latter is the simpler to work with AFAICT. -- Neil Bothwick "We demand rigidly defined areas of doubt and uncertainty!"
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