【背景】
折腾：
【已解决】Ubuntu中用sudo apt-get install安装某软件，结果出错：E: Unable to locate package
期间，虽然已经解决问题。
但是还是嫌弃本地连到us的ubuntu的源的速度太慢。
所以还是打算去更换为，国内访问的速度比较快的163的源。
【折腾过程】
1.参考：
【已解决（fixed）】W: Duplicate sources.list entry when do “sudo apt-get update”
去：
crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0$ sudo cp -p /etc/apt/sources.list /etc/apt apt/ aptdaemon/ crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0$ sudo cp -p /etc/apt/sources.list /etc/apt/sources.list_backup crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0$ sudo gedit /etc/apt/sources.list
然后把下面内容添加到文件：
/etc/apt/sources.list
的最顶端：
#add by Crifan Li 2013-08-08, added 163 source deb http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
保存退出后。
2.再去更新一下：
crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0$ sudo apt-get update Get:1 http://security.ubuntu.com raring-security Release.gpg [933 B] Hit http://extras.ubuntu.com raring Release.gpg Get:2 http://security.ubuntu.com raring-security Release [40.8 kB] Hit http://extras.ubuntu.com raring Release Hit http://extras.ubuntu.com raring/main Sources Hit http://us.archive.ubuntu.com raring Release.gpg Hit http://extras.ubuntu.com raring/main i386 Packages Get:3 http://security.ubuntu.com raring-security/main Sources [36.2 kB] Get:4 http://us.archive.ubuntu.com raring-updates Release.gpg [933 B] Get:5 http://us.archive.ubuntu.com raring-backports Release.gpg [933 B] Get:6 http://security.ubuntu.com raring-security/restricted Sources [14 B] Hit http://us.archive.ubuntu.com raring Release Get:7 http://security.ubuntu.com raring-security/universe Sources [8,839 B] Get:8 http://security.ubuntu.com raring-security/multiverse Sources [1,825 B] Get:9 http://us.archive.ubuntu.com raring-updates Release [40.8 kB] Get:10 http://security.ubuntu.com raring-security/main i386 Packages [94.3 kB] Get:11 http://security.ubuntu.com raring-security/restricted i386 Packages [14 B] Get:12 http://security.ubuntu.com raring-security/universe i386 Packages [32.9 kB] Ign http://extras.ubuntu.com raring/main Translation-en_US Get:13 http://security.ubuntu.com raring-security/multiverse i386 Packages [3,612 B] Ign http://extras.ubuntu.com raring/main Translation-en Hit http://security.ubuntu.com raring-security/main Translation-en Get:14 http://us.archive.ubuntu.com raring-backports Release [40.8 kB] Hit http://security.ubuntu.com raring-security/multiverse Translation-en Hit http://security.ubuntu.com raring-security/restricted Translation-en Hit http://security.ubuntu.com raring-security/universe Translation-en Hit http://us.archive.ubuntu.com raring/main Sources Hit http://us.archive.ubuntu.com raring/restricted Sources Get:15 http://mirrors.163.com precise Release.gpg [198 B] Hit http://us.archive.ubuntu.com raring/universe Sources Hit http://us.archive.ubuntu.com raring/multiverse Sources Hit http://us.archive.ubuntu.com raring/main i386 Packages Get:16 http://mirrors.163.com precise-security Release.gpg [198 B] Hit http://us.archive.ubuntu.com raring/restricted i386 Packages Ign http://security.ubuntu.com raring-security/main Translation-en_US Get:17 http://mirrors.163.com precise-updates Release.gpg [198 B] Hit http://us.archive.ubuntu.com raring/universe i386 Packages Get:18 http://mirrors.163.com precise-proposed Release.gpg [198 B] Ign http://security.ubuntu.com raring-security/multiverse Translation-en_US Get:19 http://mirrors.163.com precise-backports Release.gpg [198 B] Hit http://us.archive.ubuntu.com raring/multiverse i386 Packages Ign http://security.ubuntu.com raring-security/restricted Translation-en_US Get:20 http://mirrors.163.com precise Release [49.6 kB] Ign http://security.ubuntu.com raring-security/universe Translation-en_US Hit http://us.archive.ubuntu.com raring/main Translation-en Get:21 http://mirrors.163.com precise-security Release [49.6 kB] Hit http://us.archive.ubuntu.com raring/multiverse Translation-en Get:22 http://mirrors.163.com precise-updates Release [49.6 kB] Hit http://us.archive.ubuntu.com raring/restricted Translation-en Hit http://us.archive.ubuntu.com raring/universe Translation-en Get:23 http://mirrors.163.com precise-proposed Release [49.6 kB] Get:24 http://mirrors.163.com precise-backports Release [49.6 kB] Get:25 http://mirrors.163.com precise/main Sources [934 kB] Get:26 http://us.archive.ubuntu.com raring-updates/main Sources [57.5 kB] Get:27 http://mirrors.163.com precise/restricted Sources [5,470 B] Get:28 http://mirrors.163.com precise/universe Sources [5,019 kB] Get:29 http://us.archive.ubuntu.com raring-updates/restricted Sources [14 B] Get:30 http://us.archive.ubuntu.com raring-updates/universe Sources [68.5 kB] Get:31 http://us.archive.ubuntu.com raring-updates/multiverse Sources [1,825 B] Get:32 http://us.archive.ubuntu.com raring-updates/main i386 Packages [148 kB] Get:33 http://us.archive.ubuntu.com raring-updates/restricted i386 Packages [14 B] Get:34 http://us.archive.ubuntu.com raring-updates/universe i386 Packages [133 kB] Get:35 http://us.archive.ubuntu.com raring-updates/multiverse i386 Packages [3,612 B] Hit http://us.archive.ubuntu.com raring-updates/main Translation-en Hit http://us.archive.ubuntu.com raring-updates/multiverse Translation-en Hit http://us.archive.ubuntu.com raring-updates/restricted Translation-en Hit http://us.archive.ubuntu.com raring-updates/universe Translation-en Get:36 http://us.archive.ubuntu.com raring-backports/main Sources [14 B] Get:37 http://us.archive.ubuntu.com raring-backports/restricted Sources [14 B] Get:38 http://us.archive.ubuntu.com raring-backports/universe Sources [5,134 B] Get:39 http://us.archive.ubuntu.com raring-backports/multiverse Sources [1,403 B] Get:40 http://us.archive.ubuntu.com raring-backports/main i386 Packages [14 B] Get:41 http://us.archive.ubuntu.com raring-backports/restricted i386 Packages [14 B] Get:42 http://mirrors.163.com precise/multiverse Sources [155 kB] Get:43 http://us.archive.ubuntu.com raring-backports/universe i386 Packages [6,239 B] Get:44 http://us.archive.ubuntu.com raring-backports/multiverse i386 Packages [1,345 B] Hit http://us.archive.ubuntu.com raring-backports/main Translation-en Hit http://us.archive.ubuntu.com raring-backports/multiverse Translation-en Hit http://us.archive.ubuntu.com raring-backports/restricted Translation-en Hit http://us.archive.ubuntu.com raring-backports/universe Translation-en Get:45 http://mirrors.163.com precise/main i386 Packages [1,274 kB] Get:46 http://mirrors.163.com precise/restricted i386 Packages [8,431 B] Get:47 http://mirrors.163.com precise/universe i386 Packages [4,796 kB] Ign http://us.archive.ubuntu.com raring/main Translation-en_US Ign http://us.archive.ubuntu.com raring/multiverse Translation-en_US Ign http://us.archive.ubuntu.com raring/restricted Translation-en_US Ign http://us.archive.ubuntu.com raring/universe Translation-en_US Ign http://us.archive.ubuntu.com raring-updates/main Translation-en_US Ign http://us.archive.ubuntu.com raring-updates/multiverse Translation-en_US Ign http://us.archive.ubuntu.com raring-updates/restricted Translation-en_US Ign http://us.archive.ubuntu.com raring-updates/universe Translation-en_US Ign http://us.archive.ubuntu.com raring-backports/main Translation-en_US Ign http://us.archive.ubuntu.com raring-backports/multiverse Translation-en_US Ign http://us.archive.ubuntu.com raring-backports/restricted Translation-en_US Ign http://us.archive.ubuntu.com raring-backports/universe Translation-en_US Get:48 http://mirrors.163.com precise/multiverse i386 Packages [121 kB] Get:49 http://mirrors.163.com precise/main Translation-en [726 kB] Get:50 http://mirrors.163.com precise/multiverse Translation-en [93.4 kB] Get:51 http://mirrors.163.com precise/restricted Translation-en [2,395 B] Get:52 http://mirrors.163.com precise/universe Translation-en [3,341 kB] Get:53 http://mirrors.163.com precise-security/main Sources [84.9 kB] Get:54 http://mirrors.163.com precise-security/restricted Sources [2,494 B] Get:55 http://mirrors.163.com precise-security/universe Sources [28.0 kB] Get:56 http://mirrors.163.com precise-security/multiverse Sources [1,383 B] Get:57 http://mirrors.163.com precise-security/main i386 Packages [320 kB] Get:58 http://mirrors.163.com precise-security/restricted i386 Packages [4,620 B] Get:59 http://mirrors.163.com precise-security/universe i386 Packages [83.7 kB] Get:60 http://mirrors.163.com precise-security/multiverse i386 Packages [2,371 B] Get:61 http://mirrors.163.com precise-security/main Translation-en [148 kB] Get:62 http://mirrors.163.com precise-security/multiverse Translation-en [995 B] Get:63 http://mirrors.163.com precise-security/restricted Translation-en [1,253 B] Get:64 http://mirrors.163.com precise-security/universe Translation-en [51.8 kB] Get:65 http://mirrors.163.com precise-updates/main Sources [412 kB] Get:66 http://mirrors.163.com precise-updates/restricted Sources [5,467 B] Get:67 http://mirrors.163.com precise-updates/universe Sources [93.4 kB] Get:68 http://mirrors.163.com precise-updates/multiverse Sources [6,582 B] Get:69 http://mirrors.163.com precise-updates/main i386 Packages [692 kB] Get:70 http://mirrors.163.com precise-updates/restricted i386 Packages [10.0 kB] Get:71 http://mirrors.163.com precise-updates/universe i386 Packages [215 kB] Get:72 http://mirrors.163.com precise-updates/multiverse i386 Packages [13.8 kB] Get:73 http://mirrors.163.com precise-updates/main Translation-en [304 kB] Get:74 http://mirrors.163.com precise-updates/multiverse Translation-en [7,834 B] Get:75 http://mirrors.163.com precise-updates/restricted Translation-en [2,432 B] Get:76 http://mirrors.163.com precise-updates/universe Translation-en [124 kB] Get:77 http://mirrors.163.com precise-proposed/main Sources [20.8 kB] Get:78 http://mirrors.163.com precise-proposed/restricted Sources [14 B] Get:79 http://mirrors.163.com precise-proposed/universe Sources [9,376 B] Get:80 http://mirrors.163.com precise-proposed/multiverse Sources [1,891 B] Get:81 http://mirrors.163.com precise-proposed/main i386 Packages [92.0 kB] Get:82 http://mirrors.163.com precise-proposed/restricted i386 Packages [14 B] Get:83 http://mirrors.163.com precise-proposed/universe i386 Packages [19.0 kB] Get:84 http://mirrors.163.com precise-proposed/multiverse i386 Packages [2,054 B] Get:85 http://mirrors.163.com precise-proposed/main Translation-en [31.3 kB] Get:86 http://mirrors.163.com precise-proposed/multiverse Translation-en [1,160 B] Get:87 http://mirrors.163.com precise-proposed/restricted Translation-en [14 B] Get:88 http://mirrors.163.com precise-proposed/universe Translation-en [10.5 kB] Get:89 http://mirrors.163.com precise-backports/main Sources [2,935 B] Get:90 http://mirrors.163.com precise-backports/restricted Sources [14 B] Get:91 http://mirrors.163.com precise-backports/universe Sources [35.2 kB] Get:92 http://mirrors.163.com precise-backports/multiverse Sources [5,311 B] Get:93 http://mirrors.163.com precise-backports/main i386 Packages [2,390 B] Get:94 http://mirrors.163.com precise-backports/restricted i386 Packages [14 B] Get:95 http://mirrors.163.com precise-backports/universe i386 Packages [36.1 kB] Get:96 http://mirrors.163.com precise-backports/multiverse i386 Packages [5,178 B] Get:97 http://mirrors.163.com precise-backports/main Translation-en [1,512 B] Get:98 http://mirrors.163.com precise-backports/multiverse Translation-en [4,610 B] Get:99 http://mirrors.163.com precise-backports/restricted Translation-en [14 B] Get:100 http://mirrors.163.com precise-backports/universe Translation-en [26.5 kB] Ign http://mirrors.163.com precise/main Translation-en_US Ign http://mirrors.163.com precise/multiverse Translation-en_US Ign http://mirrors.163.com precise/restricted Translation-en_US Ign http://mirrors.163.com precise/universe Translation-en_US Ign http://mirrors.163.com precise-security/main Translation-en_US Ign http://mirrors.163.com precise-security/multiverse Translation-en_US Ign http://mirrors.163.com precise-security/restricted Translation-en_US Ign http://mirrors.163.com precise-security/universe Translation-en_US Ign http://mirrors.163.com precise-updates/main Translation-en_US Ign http://mirrors.163.com precise-updates/multiverse Translation-en_US Ign http://mirrors.163.com precise-updates/restricted Translation-en_US Ign http://mirrors.163.com precise-updates/universe Translation-en_US Ign http://mirrors.163.com precise-proposed/main Translation-en_US Ign http://mirrors.163.com precise-proposed/multiverse Translation-en_US Ign http://mirrors.163.com precise-proposed/restricted Translation-en_US Ign http://mirrors.163.com precise-proposed/universe Translation-en_US Ign http://mirrors.163.com precise-backports/main Translation-en_US Ign http://mirrors.163.com precise-backports/multiverse Translation-en_US Ign http://mirrors.163.com precise-backports/restricted Translation-en_US Ign http://mirrors.163.com precise-backports/universe Translation-en_US Fetched 20.4 MB in 2min 23s (142 kB/s) Reading package lists... Done crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0$
如此，应该是可以了。
3.但是打算再去用图形界面的方式，去操作看看：
进入Ubuntu Software Center
也是可以的。
最好再去做一次：
sudo apt-get update
【总结】
想要换成163的源的话，可以使用图形界面的方式去：
Ubuntu Software Center->Ubuntu Software->Download from-> choose ‘Other…’ -> choose ‘China->mirrors.163.com->Choose server’->Close
转载请注明：在路上 » 【记录】给Ubuntu更换成163的源（sources.list）