# cd /usr/src/linux
# make nconfig
Gentoo Linux --->
Support for init systems, system and service managers --->
[ ] OpenRC, runit and other script based systems and managers
[*] systemd
Device Drivers --->
Generic Driver Options --->
[*] Support for uevent helper
() path to uevent helper (注: 空にする)
# make -j4 && make install modules_install
# vim /etc/default/grub
-#GRUB_CMDLINE_LINUX=""
+GRUB_CMDLINE_LINUX="init=/usr/lib/systemd/systemd"
# grub2-mkconfig -o /boot/grub/grub.cfg
# vim /etc/portage/make.conf
-USE="bindist mmx sse sse2"
+USE="bindist mmx sse sse2 systemd"
# emerge -avuDN @world -j4
# systemctl enable dhcpcd
or
https://wiki.archlinux.org/index.php/Systemd-networkd
# reboot