卸载ubuntu旧的内核

查询当前使用的内核

uname -a

查询已经安装的内核

dpkg -l|grep linux

ii  linux-headers-2.6.32-22
ii  linux-headers-2.6.32-22-generic
ii  linux-headers-2.6.32-24
ii  linux-headers-2.6.32-24-generic
ii  linux-headers-2.6.32-25
ii  linux-headers-2.6.32-25-generic
rc  linux-image-2.6.31-10-rt
ii  linux-image-2.6.32-21-generic
ii  linux-image-2.6.32-22-generic
ii  linux-image-2.6.32-24-generic
ii  linux-image-2.6.32-25-generic

卸载不需要的旧内核

sudo apt-get remove linux-image-2.6.32-24-generic

sudo apt-get remove linux-headers-2.6.32-24

卸载标识为rc的包

dpkg -l | grep ^rc | cut -d' ' -f3|sudo xargs dpkg -P