Thanks for your time. I have already removed that unnecessary PPA (but I have got another error "umount: /tmp/tmpCOieOG/dev: device is busy" - it is described in another bug reports). Because I did not get described error again I am going to mark it as invalid until it will not appear again.
** Changed in: vm-builder (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/1131287 Title: VMBuilder.exception.VMBuilderException: Process (['chroot', '/tmp/tmpygLbH_', 'apt-get', 'update']) returned 100. stdout: Ign http://ppa.launchpad.net quantal InReleas To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/1131287/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs