一、只要使用apt-get update && apt-get upgrade就好
当然上面那个命令不会改变你Ubuntu的版本，如果你还要升级Ubuntu的版本（比如从13.10升级到14.04），那你要敲：sudo dist-upgrade
更新列表
apt-get update
更新软件包
apt-get upgrade
查看软件源内核信息
apt-cache search linux-image-xxxx
查看某一版本内核有哪些包
root@10-15-126-114:~# apt-cache search 3.16.0-77-generic
linux-cloud-tools-3.13.0-95-generic - Linux kernel version specific cloud tools for version 3.13.0-95
linux-headers-3.13.0-95-generic - Linux kernel headers for version 3.13.0 on 64 bit x86 SMP
linux-image-3.13.0-95-generic - Linux kernel image for version 3.13.0 on 64 bit x86 SMP
linux-image-extra-3.13.0-95-generic - Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
linux-signed-image-3.13.0-95-generic - Signed kernel image generic
linux-tools-3.13.0-95-generic - Linux kernel version specific tools for version 3.13.0-95
安装相应内核
apt-get install linux-headers-3.13.0-95-generic linux-image-3.13.0-95-generic linux-image-extra-3.13.0-95-generic linux-tools-3.13.0-95-generic
查看当前安装了哪些内核版本
dpkg --list | grep linux-image
查看该内核版本有哪些包
dpkg --list | grep 3.2.0-96.136
删除多余内核包
apt-get remove linux-image-3.13.0-63-generic
apt-get remove linux-image-extra-3.13.0-63-generic
apt-get remove linux-headers-3.13.0-63-generic
清理无用的包
apt-get clean && sudo apt-get autoclean
原文：http://12210861.blog.51cto.com/12200861/1865086