在虚拟机新建一个Ubuntu18.04.1-live-server-amd64当做服务器
在安装软件时报错：
[email protected]:~$ sudo -s
[sudo] password for slave:
[email protected]:~# apt install redis-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3 is already the newest version (3.6.5-3ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 27 not upgraded.
[email protected]:~# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 27 not upgraded.
从报错信息上看可能存在一些依赖问题或者软件源出了问题，修复一下破损的依赖关系还是一样的错误信息，此时应该更换Ubuntu的源。
如何更换Ubuntu的源
①进入root模式
②进入ubuntu源的目录
③备份sources.list
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cp sources.list sources.list.bak
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④修改sources.list
删除sources.list中的内容，把阿里云的源复制进source.list中
ubuntu 18.04(bionic)
阿里云：
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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-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed 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
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⑤ 更新源
6. 更新软件
再次安装软件就不会报错了
