You cannot install systemd without dbus, which must be built with USE=systemd. eb=/usr/portage/sys-apps/systemd/systemd-226-r2.ebuild grep sys-apps/dbu

You cannot install systemd without dbus, which must be built with USE=systemd. eb=/usr/portage/sys-apps/systemd/systemd-226-r2.ebuild grep sys-apps/dbus "${eb}" | grep '\[systemd\]' PDEPEND=">=sys-apps/dbus-1.6.8-r1:0[systemd] Gentoo with USE=-systemd (explicitly disabled) continues to use OpenRC which is included by default in the standard install process.