Global USE flags

Flag Description Packages
doc 2

Local USE flags

sys-apps

beadm

Flag Description
test-suite Install regression test suite

sys-boot

grub

Flag Description
(
)
coreboot
device-mapper Enable support for devmapper; required for LUKS or LVM volume detection
efi-32
efi-64
efiemu Build and install the efiemu runtimes
emu
fonts Build and install fonts for the gfxterm module
ieee1275
libzfs Enable support for <pkg>sys-fs/zfs</pkg>
loongson
mount Build and install the grub-mount utility
multiboot
nls
pc
protect Build and install the grub-protect utility
qemu
qemu-mips
sdl
test
themes Build and install GRUB themes (starfield)
truetype Build and install grub-mkfont conversion utility
uboot
xen
xen-32
xen-pvh

sys-kernel

genkernel

Flag Description
firmware Prefer system firmware <pkg>sys-kernel/linux-firmware</pkg> over local copy.
ibm
systemd
zfs Enable support for ZFS <pkg>sys-fs/zfs</pkg>