Err:1 /ubuntu xenial InRelease
Temporary failure resolving ''
Err:2 /ubuntu xenial-security InRelease
Temporary failure resolving ''
Err:3 /ubuntu xenial-updates InRelease
Temporary failure resolving ''
Err:4 /ubuntu xenial-proposed InRelease
Temporary failure resolving ''
Err:5 /ubuntu xenial-backports InRelease
Temporary failure resolving ''
Reading package lists... Done
/etc/
# Dynamic (5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
nameserver 192.168.23.1
nameserver 221.130.33.52
nameserver 169.95.1.1
2. 你可以在服务器的终端中输入“lsb_release -a”命令或者查看“/etc/issue”文件来确定当前系统的版本。
eg: xenial----my version
/etc/apt/
deb /ubuntu/ xenial main multiverse restricted universe
deb /ubuntu/ xenial-backports main multiverse restricted universe
deb /ubuntu/ xenial-proposed main multiverse restricted universe
deb /ubuntu/ xenial-security main multiverse restricted universe
deb /ubuntu/ xenial-updates main multiverse restricted universe
deb-src /ubuntu/ xenial main multiverse restricted universe
deb-src /ubuntu/ xenial-backports main multiverse restricted universe
deb-src /ubuntu/ xenial-proposed main multiverse restricted universe
deb-src /ubuntu/ xenial-security main multiverse restricted universe
deb-src /ubuntu/ xenial-updates main multiverse restricted universe
4.sudo apt-get clean