With cgfs i actually wasn't able to start the container in the first place. I've now fixed at least that.
it wasn't the mkdir which was failing, but the subsequent attempt to attach itself to it. That's because while cgmanager used to chown the child files after creating a directory for us, cgfs wasn't doing that. Now I'm at least at the point you were at - i can boot, but reboot hangs, almost the same way: Failed to create /lxc/x1/init.scope control group: No such file or directory Failed to allocate manager object: No such file or directory [!!!!!!] Failed to allocate manager object, freezing. Note the error is not ENOENT. When I check the rootfs after the fact, there is no init.scope directory... Debug statement in lxcfs suggests that no mkdir was ever called. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1514690 Title: rebooting container with systemd >= 226 fails to create /lxc/adt- xenial/init.scope control group Status in lxc package in Ubuntu: Triaged Bug description: Even after fixing bug 1497420 rebooting containers with systemd >= 226 (i. e. with supporting unified cgroups) does not work. Build a standard xenial container (using the ubuntu template; e. g. "adt- build-lxc ubuntu xenial"), start it: sudo lxc-start -n adt-xenial -F then log in and run "sudo reboot". It shuts down, but reboot fails with Rebooting. systemd 227 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD -IDN) Detected virtualization lxc. Detected architecture x86-64. Welcome to Ubuntu 16.04! Set hostname to <adt-xenial.new>. Failed to install release agent, ignoring: No such file or directory Failed to create /lxc/adt-xenial/init.scope control group: No such file or directory Failed to allocate manager object: No such file or directory [!!!!!!] Failed to allocate manager object, freezing. Freezing execution. During that time, I get the following errors: Nov 09 08:42:31 donald cgmanager[864]: cgmanager: Invalid path /run/cgmanager/fs/none,name=systemd///lxc/adt-xenial/init.scope (No such file or directory) Nov 09 08:42:31 donald cgmanager[864]: cgmanager:list_children_main: Could not determine the requested cgroup (name=systemd:lxc/adt-xenial/init.scope) Nov 09 08:42:31 donald cgmanager[864]: cgmanager: Invalid path /run/cgmanager/fs/none,name=systemd///lxc/adt-xenial/init.scope (No such file or directory) Nov 09 08:42:31 donald cgmanager[864]: cgmanager:list_keys_main: Could not determine the requested cgroup (name=systemd:lxc/adt-xenial/init.scope) Nov 09 08:42:31 donald lxcfs[882]: ** (process:882): WARNING **: cgmanager method call org.linuxcontainers.cgmanager0_0.ListChildren failed: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: invalid request. Use G_DBUS_DEBUG=message for more info. Nov 09 08:42:31 donald lxcfs[882]: ** (process:882): WARNING **: cgmanager method call org.linuxcontainers.cgmanager0_0.ListKeys failed: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: invalid request. Use G_DBUS_DEBUG=message for more info.h ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: lxc 1.1.5-0ubuntu1 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.2-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Tue Nov 10 06:30:28 2015 EcryptfsInUse: Yes SourcePackage: lxc UpgradeStatus: No upgrade log present (probably fresh install) defaults.conf: lxc.network.type = veth lxc.network.link = lxcbr0 lxc.network.flags = up lxc.network.hwaddr = 00:16:3e:xx:xx:xx lxc.conf: lxc.lxcpath = /srv/lxc To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1514690/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp