Ubuntu更換國內鏡像源

 

1.備份原系統中的鏡像源

sudo cp /etc/apt/sources.list /etc/apt/sources.bak1

#第一個參數時拷貝的文件路徑和文件名稱,第二個是拷貝到(粘貼)的文件路徑和文件名

 sudo cp /etc/apt/sources.list /etc/apt/sources.bak1 

 

2.更改鏡像源文件的訪問權限(增加寫權限)

sudo chmod u+w /etc/apt/sources.list

 sudo chmod u+w /etc/apt/sources.list 

 

更改完成可以再恢復文件的訪問權限。

清華鏡像源：https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/ 

 

3.更改鏡像源內容

#方法 sudo gedit /etc/apt/sources.list


#阿里源
#deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
#deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
#deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
#deb 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 main restricted universe multiverse
#deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
#deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
#deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

#網易源
#deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
#deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
#deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
#deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
#deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse

#清華源
#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
#deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

##中科大源
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

 

4.更新軟件源列表

sudo apt-get update
#這個命令，會訪問源列表里的每個網址，並讀取軟件列表，然后保存在本地電腦。
我們在新立得軟件包管理器里看到的軟件列表，都是通過update命令更新的。

  sudo apt-get update 

 

sudo apt-get upgrade
#這個命令，會把本地已安裝的軟件，與剛下載的軟件列表里對應軟件進行對比，如果發現已安裝的軟件版本太低，
就會提示你更新。如果你的軟件都是最新版本，會提示：
升級了 0 個軟件包，新安裝了 0 個軟件包，要卸載 0 個軟件包，有 0 個軟件包未被升級。

  sudo apt-get upgrade 

 

 

【參考1】https://blog.csdn.net/qq_21095573/article/details/99736630