树莓派Ubuntu Mate 16.04 修改为国内更新源

小程序：扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序

收藏：https://blog.csdn.net/wang_shuai_ww/article/details/80386708

更换步骤
以root身份打开 /etc/apt/sources.list ，至于用什么打开随意
将 http://ports.ubuntu.com/ 全部替换为 http://mirrors.ustc.edu.cn/ubuntu-ports/ ，这是中科大的
执行 sudo apt-get update 和 sudo apt-get upgrade 测试

查看是否提供arm支持的方法

打开一个镜像站点，然后以此打开 /dists/xenial/main/ ，看这个目录下面有没有 binary-arm 这样的字眼，如果有，就是提供arm支持的
上面部分来自https://blog.csdn.net/wr132/article/details/56700479
下面贴出具体的代码：

## Note, this file is written by cloud-init on first boot of an instance

## modifications made here will not survive a re-bundle.

## if you wish to make changes you can:

## a.) add 'apt_preserve_sources_list: true' to /etc/cloud/cloud.cfg

##     or do the same in user-data

## b.) add sources in /etc/apt/sources.list.d

## c.) make changes to template file /etc/cloud/templates/sources.list.tmpl

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

# newer versions of the distribution.

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial main restricted

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial main restricted

## Major bug fix updates produced after the final release of the

## distribution.

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates main restricted

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates main restricted 

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu

## team. Also, please note that software in universe WILL NOT receive any

## review or updates from the Ubuntu security team.

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial universe

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial universe

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates universe

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu

## team, and may not be under a free licence. Please satisfy yourself as to

## your rights to use the software. Also, please note that software in

## multiverse WILL NOT receive any review or updates from the Ubuntu

## security team.

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial multiverse

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates multiverse

## N.B. software from this repository may not have been tested as

## extensively as that contained in the main release, although it includes

## newer versions of some applications which may provide useful features.

## Also, please note that software in backports WILL NOT receive any review

## or updates from the Ubuntu security team.

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-backports main restricted universe multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-backports main restricted universe multiverse 

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security main restricted

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security main restricted

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security universe

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security universe

deb http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security multiverse 

## Uncomment the following two lines to add software from Canonical's

## 'partner' repository.

## This software is not part of Ubuntu, but is offered by Canonical and the

## respective vendors as a service to Ubuntu users.

# deb http://archive.canonical.com/ubuntu xenial partner

# deb-src http://archive.canonical.com/ubuntu xenial partner