我的第一个问题是当我尝试apt-get update或apt-get upgrade. 升级时出现以下错误：
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
linux-image-server : Depends: linux-image-3.2.0-27-generic but it is not installed
E: Unmet dependencies. Try using -f.
我尝试运行 apt-get install -f ，这是输出（在提示上说是后）
(Reading database ... 186183 files and directories currently installed.)
Unpacking linux-image-3.2.0-27-generic (from .../linux-image-3.2.0-27-generic_3.2.0-27.43_amd64.deb) ...
Done.
dpkg: error processing /var/cache/apt/archives/linux-image-3.2.0-27-generic_3.2.0-27.43_amd64.deb (--unpack):
failed in write on buffer copy for backend dpkg-deb during `./boot/System.map-3.2.0-27-generic': No space left on …