>> I just remembered another step that I missed - I dont have the syntax >> but "efibootmgr" - google for the correct options. > > Yes ;-) > > I do that for days now. What puzzles me: > > I get the entries into EFI: when I boot I see the entries created by > efibootmgr, but when I chose one of the entries pointing to "GRUB2" or > "gentoo" the PC tells me that the disk isn't bootable. > > And I still don't know what is missing. AFAIK that EFI system partition > is allowed to be within the first 2 TB of the disk (easy on my 1 TB > hdd), has to have the boot-flag set (in parted-terms), and must be type > EF02. When EFI doesn't find something bootable on the disk, my > interpretation is that it can't find that partition?
Maybe the boot entry in the EFI firmware is wrong. That's what mine looks like: # efibootmgr -v BootCurrent: 0000 Timeout: 2 seconds BootOrder: 0000,0002,0003,0004 Boot0000* grub2 HD(1,800,40000,2693e7bd-d35e-4a39-9bb9-365ee533d690)File(\EFI\grub2\grubx64.efi) Boot0002* Hard Drive BIOS(2,0,00)USB DISK 1100. Boot0003* Network Card BIOS(6,0,00)Realtek PXE B05 D00. Boot0004* Removable Drive BIOS(1,0,00)HTC Android Phone 0000.
