ubuntutmp文件可以删除吗 ubuntu2更换软件源

导读1说明目前ubuntu系统软件源中有中国区的镜像地址，理论上下载更新软件速录也可以，但是也会抽风，因此最好还是替换国内软件源。替换软件源就是修改/etc/a....1 说明

目前ubuntu系统软件源中有中国区的镜像地址，理论上下载更新软件速录也可以，但是也会抽风，因此最好还是替换国内软件源。替换软件源就是修改/etc/apt/sources.list，apt在下载软件时，会解析该文件中的软件源，桌面版系统可以通过图形化修改，服务器版可通过sed、vi、cat、echo命令修改。常用的软件源帮助页面：

阿里：https://developer.aliyun.com/mirror/ubuntu

中科大：https://mirrors.ustc.edu.cn/help/ubuntu.html

清华：https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/

网易：http://mirrors.163.com/.help/ubuntu.html

腾讯：https://mirrors.cloud.tencent.com/help/ubuntu.html

2 桌面版修改软件源

1）打开应用程序，找到“Soft&Update”。

2）选择“Update Software”，点击“Download from"，选择"Other…"。

3）对话框中选择”China“，选软件源，点击”Choose Server“，这些都是国内的镜像源，速度基本差不多，但是软件同步更新会存在少许差异，一般选择阿里、清华、网易、腾讯等其中的一个即可。

3 命令行修改3.1 备份软件源

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

3.2 修改源

修改源本质就修改/etc/apt/sources.list文件中的网址，将其替换成国内镜像网址或者内网服务器镜像地址。这里提供三种修改方式，分贝时sed替换源网址（推荐），vim编辑修改文件，以及echo修改（适用于系统没有vim、sed等）。

3.2.1 sed修改方式

将软件源替换为中科大软件源、清华软件源、阿里软件源、网易软件源，具体操作如下：

sudo sed -i s@//.*archive.ubuntu.com@//mirrors.ustc.edu.cn@g /etc/apt/sources.listsudo sed -i s@//.*archive.ubuntu.com@//mirrors.tuna.tsinghua.edu.cn /etc/apt/sources.listsudo sed -i s@//.*archive.ubuntu.com@//mirrors.aliyun.com /etc/apt/sources.listsudo sed -i s@//.*archive.ubuntu.com@//mirrors.163.com /etc/apt/sources.listsudo sed -i s@//.*archive.ubuntu.com@//mirrors.cloud.tencent.com /etc/apt/sources.list

其它镜像地址可自行网上查找，如果是内网，替换成内网镜像地址，如果是本地，替换成本地路径。

3.2.2 vim修改方式

例如在ubuntu22.04中，通过vim替换软件源为中科大软件源，具体操作如下：

sudo echo > /etc/apt/sources.listsudo vim /etc/apt/sources.list#sources.list 内容替换为如下内容：# 默认注释了源码仓库，如有需要可自行取消注释deb https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse# 预发布软件源，不建议启用# deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

3.2.3 cat修改方式

例如在ubuntu22.04中，通过cat替换软件源为中科大软件源，具体操作如下：

sudo -i cat > /etc/apt/sources.list复制下列软件源到Terminal，然后Ctrlt C结束即可# 默认注释了源码仓库，如有需要可自行取消注释deb https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse# 预发布软件源，不建议启用# deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse# deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

3.2.4 echo方式修改

如果系统下没有vim，sed等命令，那么可以使用“echo”命令来修改软件源，具体操作如下：

echo "deb https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse" > /etc/apt/sources.listecho "deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.list echo "deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.list

4 刷新软件源并更新

sudo apt-get updatesudo apt-get upgrade

5 问题

如果修改软件源后依旧不能下载、更新软件：

1）确保修改的软件源正确；

2）确保系统时间正确；

3）将/etc/apt/sources.list文件中https替换成http；

4）注释/etc/apt/sources.list文件中源码仓库（注释所有deb-src行）。

6 其他源

如果是其它系统，只需将jammy替换成对应名称即可。

22.04：jammy；

20.04：focal；

18.04：bionic；

16.04：xenial；

14.04：trusty。

更多名称请参考：ubuntu-sys1：ubuntu系统简介

vim/cat修改操作源

# 清华镜像源deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse# 阿里镜像源deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse# 163镜像源deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse

echo修改操作

echo "# 清华镜像源" >> /etc/apt/sources.listecho "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "# 阿里镜像源" >> /etc/apt/sources.listecho "deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.listecho "# 163镜像" >> /etc/apt/sources.listecho "deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiverse" >> /etc/apt/sources.listecho "deb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.listecho "deb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse" >> /etc/apt/sources.list