apt-get清华源报错certificate failed临时解决方案
本帖最后由 易学智能 于 2021-10-29 22:23 编辑由于清华源的证书问题，apt-get无法使用tsinghua源进行更新与安装。
问题表现如下：
解决方案：
换源，例如，换用aliyun源。
操作如下：
1、在命令行输入sudo gedit /etc/apt/sources.list
2、在打开的gedit窗口，将sources.list的原有内容(采用清华源)，全部删除，然后填入以下内容。
#deb包
deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
##测试版源
deb http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse
# 源码
deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
##测试版源
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse
# Canonical 合作伙伴和附加
deb http://archive.canonical.com/ubuntu/ xenial partner
deb http://extras.ubuntu.com/ubuntu/ xenial main
相关网页：https://www.jianshu.com/p/7b39bcf0ffa7
3. 按ctrl+S保存gedit编辑结果。然后，再次运行sudo apt-get update，OK。
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