Hi,

i faced issues with Ubuntu 12.04 reboot when installed default OpenVZ template from http://openvz.org/Download/template/precreated
reboot, ssh access, networking

Did you suceeded installing Ubuntu 12.x on openVZ, can you please share how you did it?

PS: here is some tutorial on this: http://syamkumar-linux.blogspot.cz/2013/04/ubuntu-1204-openvz-template-issue-in.html