Changes

Make sure that packages <code>nfs-utils</code> and <code>nfs-utils-lib</code> or similar are installed in a container. Also make sure that the <code>portmap</code> (or <code>rpcbind</code>) service is started, otherwise the mount with default options will fail and require the <code>-nolock</code> option.<ref>For Ubuntu/Debian OpenVZ containers, the portmap/rpcbind service do not start automatically. However, you can enable it by editing the <code>/etc/default/nfs-common</code> configuration file.</ref>