that's a little problem with sysvinit and initng after installing (not running!) initng, it overwrites the halt command, and system is no more able to poweroff a bad: INIT: no more processes left in this runlevel messages appears. with reemerging sysvinit all works ok please check
known issue initng overwrites halt and reboot
0.0.18 now blocks sysvinit
*** Bug 93879 has been marked as a duplicate of this bug. ***
I've unmerged sysvinit and emerged initng, but emerge -puD world keeps telling me: Calculating world dependencies ...done! [blocks B ] sys-apps/sysvinit (is blocking sys-apps/initng-0.0.18) localhost disabled # equery d sysvinit [ Searching for packages depending on sysvinit... ] sys-apps/baselayout-1.11.12-r3