/etc/apt/source.list<br /># deb cdrom:[Ubuntu 14.04 LTS _Trusty Tahr_ - Release amd64 (20140417)]/ trusty main restricted<br /><br /><br /># See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to<br /># newer versions of the distribution.<br /><br /><br />## Major bug fix up...【阅读全文】