跨版本升级Linux系统的方法

使用 update-manager 进行跨版本升级。确保已经安装 update-manager。

1.首先，修改源

sudo gedit /etc/apt/sources.list

替换为以下内容：

（本文以升级到ubuntu 13.04 为例。每一个版本都有对应的标识）

#deb http://archive.ubuntu.com/ubuntu/ raring main restricted universe multiverse

#deb http://archive.ubuntu.com/ubuntu/ raring-security main restricted universe multiverse

#deb http://archive.ubuntu.com/ubuntu/ raring-updates main restricted universe multiverse

#deb http://archive.ubuntu.com/ubuntu/ raring-proposed main restricted universe multiverse

#deb http://archive.ubuntu.com/ubuntu/ raring-backports main restricted universe multiverse

#deb-src http://archive.ubuntu.com/ubuntu/ raring main restricted universe multiverse

#deb-src http://archive.ubuntu.com/ubuntu/ raring-security main restricted universe multiverse

#deb-src http://archive.ubuntu.com/ubuntu/ raring-updates main restricted universe multiverse

#deb-src http://archive.ubuntu.com/ubuntu/ raring-proposed main restricted universe multiverse

#deb-src http://archive.ubuntu.com/ubuntu/ raring-backports main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ quantal-proposed main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu/ quantal-proposed main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse

2. 检查更新

sudo apt-get update

3.下载更新

sudo apt-get -d dist-upgrade //-d 表示只下载

4. 跨版本升级

sudo update-manager -d // 按照提示，选择‘部分更新’

完成之后，先不要重启，在重新试一下

sudo apt-get update

sudo apt-get upgrade

确保全部升级完成。

5.重启完成跨版本升级

6. 清除旧文件

sudo apt-get autoremove

sudo apt-get autoclean