从昨天开始，我的更新经理给了我这条消息：
您当前的硬件启用堆栈 (HWE) 将于 2014 年 7 月 8 日停止支持。在此日期之后，您系统的关键部分（内核和图形堆栈）的安全更新将不再可用。
更多信息请参见：http : //wiki.ubuntu.com/1204_HWE_EOL
但是，当我尝试将HWE与所建议的命令升级hwe-support-status --verbose是
sudo apt-get install linux-generic-lts-trusty libgl1-mesa-glx-lts-trusty xserver-xorg-lts-trusty linux-image-generic-lts-trusty
我收到依赖错误：
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies: …