OpenVz Is always the unwanted adopted child of Proxmox from the beginning. Proxmox developers want to get rid of it from the first day. Now with the new 4.x series they replaced it with LXC without thinking and testing any much further. There are tons and tons of problems with LXC. OpenVZ have it's own advantages. Although it lacks some features and somewhat old and somewhat garbage code base, it is a good container system with its own very heavily tested background and being used in millions! of vps containers. I myself a proxmox lover from the first days. I started using it in early 1.x versions. But the move to LXC hurts me bad. Very very bad. With a complte new network system - no venet stuff - and a complete new disk system - no more flat file base storage - there is simply no means of using LXC in proxmox. There is absolutely zero difference between LXC and KVM is production. Think about it like that. You need to create a disk image. You need to setup and create a new bridged network system. Only if we can use templates. Which there are already for openvz templates which we tried to fix to work with LXC. all these apparmor stuf, all these lack of file permission stuff. LXC become completely nonsense to use as we already have very well working Qemu KVM stuff without any problems. anybody can tell me and if please make me believe why to choose LXC over KVM? LXC is hard to setup, hard to configure, have tons of problems and have zero advantages over KVM. I really want and need openVZ support in Proxmox 4.x series. Only if I was a programmer, I can by somehow fork the 4.x series to add OpenVZ supoort to it. But no, I am just a simple , noob system admin, who happens to be in charge of 50+ proxmox 3.x servers with 100's of openvz containers which I have to move to Qemu KVM in the upcoming years of my life.... Sad... So sad... Moving to LXC is a mistake! LXC is just a candy for openVZ users of proxmox, because Proxmox developers can not be bothered with ton's of complaints of openVZ users. Dear PROXMOX please Drop LXC all together. and only provide Qemu KVM. Why bother with a unmature problematic system in the first place. Just check your forums. all LXC problems everywhere..