我正在运行 Ubuntu 16.04，并且在尝试解压缩 linux-headers-4.4.0-66-generic apt 时无限期挂起。我终止了 apt 进程，删除了过时的锁文件，然后运行：
sudo apt-get clean
sudo dpkg --configure -a
结果是：
dpkg: dependency problems prevent configuration of linux-generic:
linux-generic depends on linux-headers-generic (= 4.4.0.66.70);
however:
Version of linux-headers-generic on system is 4.4.0.64.68.
dpkg: error processing package linux-generic (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
linux-generic
然后我跑了：
sudo apt-get update
sudo apt-get ugrade
结果如下：
...
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies: …