ref: 3cf83fa259b70ab6289b9106c04da7c27d4b34d1
dir: /sys/lib/sysconfig/proto/9bootproto/
uid=sys gid=sys 386 d775 9bootfat 664 9boothyb 664 9bootiso 664 9bootpxe 664 efiboot.fat 664 bootia32.efi 664 bootx64.efi 664 mbr 664 pbs 664 cfg d775 plan9.ini 664