ubuntu18.04 源更新
1.寻找国内镜像源
https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/
2.配置source list源
sources.list系统自带的,源是来Ubuntu的官网!安装包比较慢,所以最好切换成国内的
linuxidc.com@ubuntu:~$ cd /etc/apt
linuxidc.com@ubuntu:/etc/apt$ sudo cp sources.list sources.list.bak
linuxidc.com@ubuntu:/etc/apt$ sudo gedit sources.list
ubuntu18.04源
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
sudo apt-get update
然后在次更新 就ok
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