I followed steps described at plugin's page. I installed plugin for Linux Mint 12 - it's Ubuntu x86 flavour. It does run however until some point. It's what I think is a reason:
Begin: Trying nfsmount -o nolock -o ro 10.0.0.1:/tftpboot/er/shares/linuxmint/ubuntu/i386/ /cdrom ... mount call failed - server replied: No such file or directory.