Hi; I've been running systemd in Gentoo since September from 2010, and it works great for me: all my machines run it at this point. Right now, we are getting really close to the point where we will be able to uninstall sys-apps/openrc, sys-apps/sysvinit and sys-apps/baselayout, and run a systemd-only Gentoo system.
I wanted to try to do exactly that, using a custom overlay, and it turns out it's not that difficult: almost all the pieces are already in the portage tree, and most of the ones missing are being tracked right now in the Gentoo bugzilla. So after creating my overlay and testing it on all my machines, I wanted to share the experience with others. Please note that this is as experimental as it can get, and certainly not for the faint of heart. You will be running the latest versions of the kernel, systemd, udev and probably dracut, and you will be saying goodbye to (up until now) core components of Gentoo: baselayout and openrc. If you follow all of the steps, you will not even have /etc/init.d and /etc/conf.d directories. If you already run systemd, the steps are not that difficult; if you are not running systemd, I *strongly* recommend first to install it and try it before attempting to use this overlay. The overlay lives in https://github.com/canek-pelaez/gentoo-systemd-only and you can get it with git clone git://github.com/canek-pelaez/gentoo-systemd-only.git There is a README on it with step by step instructions, that you can also read in this page: http://xochitl.matem.unam.mx/~canek/gentoo-systemd-only/index.html The normal warnings apply: I do not take any responsibility for any harm your system may suffer, and it is intended for Gentoo users that know what they are doing. If something breaks, you get to keep the pieces. If you do try it and find any problems with the overlay, please let me know and I will try to fix them (and please don't bother the Gentoo devs with said problems: they know nothing of this overlay, and I'm doing this all by my own). I also will try to keep the overlay sync'ed with the portage tree. Regards. -- Canek Peláez Valdés Posgrado en Ciencia e Ingeniería de la Computación Universidad Nacional Autónoma de México