解决"更新需要花去xM磁盘上总计/boot的空间..."的问题
系统自动升级会安装多个内核，卸载多余的内核可以获得更多磁盘空间
[email protected]:/home/local# dpkg --get-selections|grep linux
//带有image的为系统内核
www.2cto.com
libselinux1
install
linux-firmware install
linux-generic install
linux-headers-3.2.0-23 install
linux-headers-3.2.0-23-generic install
linux-headers-3.2.0-24 install
linux-headers-3.2.0-24-generic install
linux-headers-3.2.0-27 install
linux-headers-3.2.0-27-generic install
linux-headers-3.2.0-29 install
linux-headers-3.2.0-29-generic install
linux-headers-generic install
linux-image-3.2.0-24-generic install
linux-image-3.2.0-27-generic install
linux-image-3.2.0-29-generic install
linux-image-generic install
[email protected]:/home/local# uname -a //查看系统当前使用内核
Linux local-Lenovo-G470 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[email protected]:/home/local# sudo apt-get remove image-3.2.0-24-generic //卸载多余内核
正在读取软件包列表... 完成
正在分析软件包的依赖关系树
正在读取状态信息... 完成
注意，根据正则表达式 image-3.2.0-24-generic 选中了 linux-image-3.2.0-24-generic
注意，根据正则表达式 image-3.2.0-24-generic 选中了 linux-image-3.2.0-24-generic-pae
下列软件包将被【卸载】： www.2cto.com
linux-image-3.2.0-24-generic
升级了 0 个软件包，新安装了 0 个软件包，要卸载 1 个软件包，有 90 个软件包未被升级。
解压缩后将会空出 149 MB 的空间。
您希望继续执行吗？[Y/n]y
(正在读取数据库 ... 系统当前共安装有 251973 个文件和目录。)
正在卸载 linux-image-3.2.0-24-generic ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.2.0-24-generic /boot/vmlinuz-3.2.0-24-generic
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-24-generic /boot/vmlinuz-3.2.0-24-generic
update-initramfs: Deleting /boot/initrd.img-3.2.0-24-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-24-generic /boot/vmlinuz-3.2.0-24-generic
Generating grub.cfg ... www.2cto.com
Found linux image: /boot/vmlinuz-3.2.0-29-generic
Found initrd image: /boot/initrd.img-3.2.0-29-generic
Found linux image: /boot/vmlinuz-3.2.0-27-generic
Found initrd image: /boot/initrd.img-3.2.0-27-generic
Found memtest86+ image: /memtest86+.bin
Found Windows 7 (loader) on /dev/sda1
Found Windows Recovery Environment (loader) on /dev/sda4
done
[email protected]:/home/local#