ubuntu中,出现Failed to fetch http://…..时,需要换源

问题描述:出现Failed to fetch http://…..

 

问题原因:一般是由于直接使用国外的源无法连接的原因导致的

 

解决方案:直接替换成国内的源即可

                        (1)执行备份命令:sudo cp /etc/apt/sources.list /etc/apt/sources.list.old

                    (2)打开文件:sudo vim /etc/apt/sources.list

                    (3)换源:复制源覆盖文件原来的内容(根据自己的网去尝试,选择最快的一个)

        (4)更新源:sudo apt update        如果出现依赖问题-->sudo apt -f install

        (5)更新软件:sudo apt upgrade


以下是ubuntu20.04版本软件源 [另附其他版本地址:阿里云开源镜像站: http://mirrors.aliyun.com/]

                                                                               [清华大学:http://mirrors.tuna.tsinghua.edu.cn/  (IPv4+IPv6)]

                                                                               [中科大:http://mirrors.ustc.edu.cn/  (IPv4+IPv6)]

#添加阿里源

deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

 

deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

 

deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

 

deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

 

deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

 

deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

 

deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

 

deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

 

deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

 

deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

 

#添加清华源

 

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse

 

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse

 

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse

 

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse

 

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse

 

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse

 

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse

 

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse multiverse

                                   

 

posted @ 2020-03-29 22:57  天际使徒  阅读(3075)  评论(0编辑  收藏
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