问题：

/boot分区几乎满了，每次重新启动系统时都会收到警告，

安装新版本后，分区几乎已经满了，我还能删除什么？

以下是/boot分区上的文件列表：

:~$ ls /boot/


abi-2.6.31-21-generic lost+found


abi-2.6.32-25-generic memtest86+.bin


abi-2.6.38-10-generic memtest86+_multiboot.bin


abi-2.6.38-11-generic System.map-2.6.31-21-generic


abi-2.6.38-12-generic System.map-2.6.32-25-generic


abi-2.6.38-8-generic System.map-2.6.38-10-generic


abi-3.0.0-12-generic System.map-2.6.38-11-generic


abi-3.0.0-13-generic System.map-2.6.38-12-generic


abi-3.0.0-14-generic System.map-2.6.38-8-generic


boot System.map-3.0.0-12-generic


config-2.6.31-21-generic System.map-3.0.0-13-generic


config-2.6.32-25-generic System.map-3.0.0-14-generic


config-2.6.38-10-generic vmcoreinfo-2.6.31-21-generic


config-2.6.38-11-generic vmcoreinfo-2.6.32-25-generic


config-2.6.38-12-generic vmcoreinfo-2.6.38-10-generic


config-2.6.38-8-generic vmcoreinfo-2.6.38-11-generic


config-3.0.0-12-generic vmcoreinfo-2.6.38-12-generic


config-3.0.0-13-generic vmcoreinfo-2.6.38-8-generic


config-3.0.0-14-generic vmcoreinfo-3.0.0-12-generic


extlinux vmcoreinfo-3.0.0-13-generic


grub vmcoreinfo-3.0.0-14-generic


initrd.img-2.6.31-21-generic vmlinuz-2.6.31-21-generic


initrd.img-2.6.32-25-generic vmlinuz-2.6.32-25-generic


initrd.img-2.6.38-10-generic vmlinuz-2.6.38-10-generic


initrd.img-2.6.38-11-generic vmlinuz-2.6.38-11-generic


initrd.img-2.6.38-12-generic vmlinuz-2.6.38-12-generic


initrd.img-2.6.38-8-generic vmlinuz-2.6.38-8-generic


initrd.img-3.0.0-12-generic vmlinuz-3.0.0-12-generic


initrd.img-3.0.0-13-generic vmlinuz-3.0.0-13-generic


initrd.img-3.0.0-14-generic vmlinuz-3.0.0-14-generic

目前，我在使用3.0.0-14-generic内核。

答案1：

你有很多未使用的内核，删除除最后一个内核之外的所有内核：

sudo apt-get purge linux-image-{3.0.0-12,2.6.3{1-21,2-25,8-{1[012],8}}}

这是简写​​:

sudo apt-get purge linux-image-3.0.0-12 linux-image-2.6.31-21 linux-image-2.6.32-25 linux-image-2.6.38-10 linux-image-2.6.38-11 linux-image-2.6.38-12 linux-image-2.6.38-8

要列出所有已安装的内核，请运行：

dpkg -l linux-image-* | grep ^ii

一个命令显示可以删除的所有内核和头，不包括当前正在运行的内核：

kernelver=$(uname -r | sed -r 's/-[a-z]+//')


dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve $kernelver

它选择所有以linux-headers-<some number>或linux-image-<some number>开头的软件包，打印已安装软件包的软件包名，然后排除当前加载的-运行内核，

升级内核，并重新引导测试后，可以使用以下命令删除所有其他内核：

sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve"$(uname -r | sed -r 's/-[a-z]+//')")