目录

1.到yum.repos.d目录

2./etc/yum.repos.d目录下新增CentOS-Base.repo

---

CentOS 7 的官方仓库在 2024 年 6 月 30 日之后已经停止维护。因此，使用最新的 CentOS 7 官方仓库可能会遇到问题。

解决failure: repodata/repomd.xml from centos: [Errno 256] No more mirrors to try.
http://mirrors.aliyun.com/centos/7/x86_64/os/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

1.到yum.repos.d目录

      只需要保留一个文件即可，CentOS-Base.repo，其余文件可以全部删除。

cd    /etc/yum.repos.d
#删除该目录下所有文件

rm -rf *

 

2./etc/yum.repos.d目录下新增CentOS-Base.repo

新增文件：CentOS-Base.repo

vi CentOS-Base.repo,然后复制以下文本，粘贴。

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#
 
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
#baseurl=http://vault.centos.org/7.8.2003/x86_64/os/
baseurl=http://vault.centos.org/7.8.2003/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
 
#released updates 
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
#baseurl=http://vault.centos.org/7.8.2003/x86_64/os/
baseurl=http://vault.centos.org/7.8.2003/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
 
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
#$baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
#baseurl=http://vault.centos.org/7.8.2003/x86_64/os/
baseurl=http://vault.centos.org/7.8.2003/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
 
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
#baseurl=http://vault.centos.org/7.8.2003/x86_64/os/
baseurl=http://vault.centos.org/7.8.2003/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

保存。

执行命令：

yum clean all
yum makecache