openSUSE Forums: Manually adding a new entry (e.g. Windows) to the GRUB2-EFI boot loader menu

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Manually adding a new entry (e.g. Windows) to the GRUB2-EFI boot loader menu Jan 11th 2013, 09:48 I have installed both Windows 7 and OpenSUSE 12.2 in my new laptop, which uses UEFI, GPT. I installed Windows first. Upon installing OpenSUSE, Windows did not show up in the GRUB2-EFI boot loader menu. Scouring the internet, I found two ways of adding Windows to the boot loader menu that seem to work! In both cases, I had to add lines in /etc/grub.d/40_custom, and then execute grub2-efi-mkconfig -o /boot/grub2-efi/grub.cfg The added lines for Option 1 go like this: menuentry "Windows 7" { insmod part_gpt insmod chain set root='(hd0,gpt1)' chainloader /EFI/Microsoft/Boot/bootmgfw.efi } The lines for Option 2 go like this: menuentry "Windows 7" { insmod part_gpt insmod fat insmod search_fs_uuid insmod chain search --fs-uuid --no-floppy --set=root 080F-E6DA chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi } where 080F-E6DA is the UUID of my ESP (/dev/sda1, mounted on /boot/efi), which I obtained using blkid. Since I don't really understand the menu entry lines themselves, for now my question is simple: which option is better, safer?? (p.s. I'd like to quote commands/codes properly in these forums, but I obviously haven't figured out how to do that. Help?)

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