Ubuntu 21.04 更换源

一、备份源列表

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sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

二、命令行打开sources.list文件

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sudo vi /etc/apt/sources.list

三、查看新版本信息

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lsb_release -c

Ubuntu 18 之后的版本如下:

版本号 代号 发布时间
22.04 Jammy Jellyfish 2022-04-22
21.10 Impish Indri 2021-10-14
21.04 Hirsute Hippo 2021-04-22 [13]
20.10 Groovy Gorilla 2020-10-22
20.04 LTS Focal Fossa 2020-04-23
19.10 Eoan Ermine 2019-10-17
19.04 Disco Dingo 2019-4-19
18.10 Cosmic Cuttlefish 2018-10-18
18.04 LTS Bionic Beaver 2018-04-26

四、修改sources.list文件

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# 默认注释了源码镜像以提高 apt update 速度,如有需要可自行取消注释
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

五、更新并升级

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sudo apt-get update && sudo apt-get upgrade -y

六、等待更新完成