Ubuntu18.04升级到20.04

柔情只为你懂 2024-05-24 01:18 24阅读 0赞

## 升级方式 ##

### 命令行升级 ###

正常情况下使用如下命令即可：

sudo do-release-upgrade

当提示如下错误信息时，得先升级本地软件包：

Please install all available updates for your release before upgrading.

sudo apt update
    sudo apt upgrade
    sudo apt dist-upgrade
    sudo do-release-upgrade

阿里最新源：

sudo gedit /etc/apt/sources.list

deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

### 软件更新器 ###

![在这里插入图片描述][4b87f6339fad418ca913b4df4c8799c6.png_pic_center]  
![在这里插入图片描述][cf374f9d18c34d8e81b82fb855583f32.png_pic_center]  
这里会弹出升级按钮，点击之后就会提示你是否升级到20.04版本，由于博主这里已经成功安装，提示不一样了。

升级成功后，命令行查看：

sudo lsb_release -a

![在这里插入图片描述][881586975c0349629556d71d0bec2f4d.png_pic_center]

## 错误情况 ##

### 软件更新 ###

![在这里插入图片描述][8e6b40ed20824fa386a10a34a49bba9b.png_pic_center]  
博主遇到的问题是，没有禁用软件更新->其他软件的源，导致一直升级失败！  
在Ubuntu18.04版本下，建议关闭这些源

[4b87f6339fad418ca913b4df4c8799c6.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/41037172ce0d4037af3f4b246fed586a.png
[cf374f9d18c34d8e81b82fb855583f32.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/cc0b97af14a5456f8b2152a14326449b.png
[881586975c0349629556d71d0bec2f4d.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/0bf14d39b34344bab276f1c9975dd137.png
[8e6b40ed20824fa386a10a34a49bba9b.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/24/e21b8e66395e42c6bde374107c545155.png