Hi GuilleToro, I'll have to guess, because I've not used burg but this could be correct: menuentry 'AlphaOS' --class arch --class gnu-linux --class gnu --class os --group group_main {\n savedefault insmod ext2 set root='(hd0,6)' search --no-floppy --fs-uuid --set 7560d863-8c5d-4dda-b7b0-f2eecc14a229...