Ubuntu安裝後更換阿里源
1、備份原來的源
cp /etc/apt/sources.list /etc/apt/sources.list.bak
2、編輯source.list
sudo vi /etc/apt/sources.list
ubuntu20.04(LTS)的源如下
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
3、其他版本需要替換ubuntu版本代號
比如Ubuntu20.04(LTS)代號為Focal Fossa，所以映象源中是focal-backports
deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
如果是其他版本將所有focal替換即可
各版本代號如下：
4.10 Warty Warthog(長疣的疣豬)
5.04 Hoary Hedgehog(灰白的刺蝟)
5.10 Breezy Badger(活潑的獾)
6.06(LTS) Dapper Drake(整潔的公鴨)
6.10 Edgy Eft(急躁的水蜥)
7.04 Feisty Fawn(壞脾氣的小鹿)
7.10 Gutsy Gibbon(勇敢的長臂猿)
8.04(LTS) Hardy Heron(耐寒的蒼鷺)
8.10 Intrepid Ibex (勇敢的野山羊)
9.04 Jaunty Jackalope(得意洋洋的懷俄明野兔)
9.10 Karmic Koala(幸運的考拉)
10.04(LTS) Lucid Lynx(清醒的猞猁)
10.10 Oneiric Ocelot(夢幻的豹貓)
11.04 Natty Narwhal(敏捷的獨角鯨)
11.10 Oneiric Ocelot（有夢的虎貓）
12.04(LTS) Precise Pangolin(精準的穿山甲)
12.10 Quantal Quetzal(量子的綠咬鵑)
13.04 Raring Ringtail(鉚足了勁的貓熊)
13.10 Saucy Salamander(活潑的蠑螈)
14.04(LTS) Trusty Tahr (可靠的塔爾羊)(LTS)
14.10 Utopic Unicorn(烏托邦獨角獸)
15.04 Vivid Vervet (活潑的小猴)
15.10 Wily Werewolf (狡猾的狼人)
16.04(LTS) Xenial Xerus (好客的非洲地松鼠)
16.10 Yakkety Yak（犛牛）
17.04 Zesty Zapus(開心的跳鼠)
17.10 Artful Aardvark(機靈的土豚)
18.04(LTS) Bionic Beaver（仿生海狸）
18.10 Cosmic Cuttlefish（宇宙墨魚）
19.04 Disco Dingo（舞動的靈犬）
19.10 Eoan Ermine（白貂）
20.04(LTS) Focal Fossa（專注的馬達加斯加長尾狸貓）
…