Dear all, I have been reading and working hard these past few days to set up a Arch VM guest on my Arch host. The guest partition is on /dev/sdc and mounted on my root partition as /dahlia (name of the machine). First question : is this Ok or shall I instead use /machine/dahlia as container directory. Then, this partition is mounted twice indeed. One time on my host fstab as /dahlia and a second time on my guest fstab as /. It sounds to me redundant. Then I installed Arch with pacstrap on /dahlia. No bootloader but Linux (i will remove the last one later as I want to share the kernel with the host). After many errors due to some missing libs, installation went fine. I managed everything about cgroups, even spent hours on /etc/cgconfig.conf which is not mandatory since systemd 205. I can see a dahlia folder in all controllers (sys/fs/cgroup/$CONTROLLER-NAME). As for systemd, I enabled cgconfig , libvirt-guest.service and systemd-machined.service gabx@hortensia ➤➤ ~ % systemctl status systemd-machined.service systemd-machined.service - Virtual Machine and Container Registration Service Loaded: loaded (/usr/lib/systemd/system/systemd-machined.service; static) Active: active (running) since Tue 2014-02-11 08:09:25 CET; 12min ago Docs: man:systemd-machined.service(8) http://www.freedesktop.org/wiki/Software/systemd/machined Main PID: 980 (systemd-machine) CGroup: /system.slice/systemd-machined.service └─980 /usr/lib/systemd/systemd-machined Feb 11 08:09:25 hortensia systemd[1]: Starting Virtual Machine and Container Registration Service... Feb 11 08:09:25 hortensia systemd[1]: Started Virtual Machine and Container Registration Service. Hint: Some lines were ellipsized, use -l to show in full. Now comes the tricky part : registering my container with slice mechanism. $ machine ctl returns empty. /sys/fs/cgroup/systemd/machine.slice directory contains nothing about dahlia container. gabx@hortensia ➤➤ ~ # systemd-nspawn -M /dahlia Invalid machine name: /dahlia gabx@hortensia ➤➤ ~ # systemd-nspawn -bD /dahlia Spawning namespace container on /dahlia (console is /dev/pts/1). Init process in the container running as PID 1208. execv() failed: No such file or directory Container failed with error code 1. I put a machine-dahlia.slice unit file in /etc/systemd/system, but I am not sure it is enough. I read I shall register the container with logind, but no idea how. How can I register my container for systemd to recognize it ? Shall I use the usual way with libvirt and virsh ? Thank you for help in such a tricky set up. --