Ubuntu 更换 APT Source

  1. 备份 sources.list 文件
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bk
  1. ubuntu 代号
4.10Warty Warthog(长疣的疣猪)
5.04Hoary Hedgehog(灰白的刺猬)
5.10Breezy Badger(活泼的獾)

6.06(LTS)Dapper Drake(整洁的公鸭)
6.10Edgy Eft(急躁的水蜥)
7.04Feisty Fawn(坏脾气的小鹿)
7.10Gutsy Gibbon(勇敢的长臂猿)

8.04(LTS)Hardy Heron(耐寒的苍鹭)
8.10Intrepid Ibex (勇敢的野山羊)
9.04Jaunty Jackalope(得意洋洋的怀俄明野兔)
9.10Karmic Koala(幸运的考拉)

10.04(LTS)Lucid Lynx(清醒的猞猁)
10.10Oneiric Ocelot(梦幻的豹猫)
11.04Natty Narwhal(敏捷的独角鲸)
11.10Oneiric Ocelot(有梦的虎猫)

12.04(LTS)Precise Pangolin(精准的穿山甲)
12.10Quantal Quetzal(量子的绿咬鹃)
13.04Raring Ringtail(铆足了劲的猫熊)
13.10Saucy Salamander(活泼的蝾螈)

14.04(LTS)Trusty Tahr (可靠的塔尔羊)(LTS)
14.10Utopic Unicorn(乌托邦独角兽)
15.04Vivid Vervet (活泼的小猴)
15.10Wily Werewolf (狡猾的狼人)

16.04(LTS)Xenial Xerus (好客的非洲地松鼠)
16.10Yakkety Yak(牦牛)
17.04Zesty Zapus(开心的跳鼠)
17.10Artful Aardvark(机灵的土豚)

18.04(LTS)Bionic Beaver(仿生海狸)
18.10Cosmic Cuttlefish(宇宙墨鱼)
19.04Disco Dingo(舞动的灵犬)
19.10Eoan Ermine(白貂)

20.04(LTS)Focal Fossa(专注的马达加斯加长尾狸猫)
…

要知道当前操作系统的代号,可以使用如下命令

g@g:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04 LTS
Release:	20.04
Codename:	focal
  1. 到阿里源看下这个源存在不存在
  • http://archive.ubuntu.com/ubuntu/dists/
  • http://mirrors.aliyun.com/ubuntu/dists/

可以看到,现在已经有了 ubuntu 20.04 ( 代号 focal ) 的源

  1. 然后以下面的为模板,把'TODO'的地方换成上面的Codename
deb http://mirrors.aliyun.com/ubuntu/ TODO main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-security main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-updates main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-proposed main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-backports main restricted universe multiverse

比如我换好20.04的源以后是这样:

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

然后粘贴到刚才的 /etc/apt/sources.list

  1. 更新缓存和升级
sudo apt-get update
sudo apt-get upgrade