centos 7 更换为阿里云yum源

Cannot find a valid baseurl for repo: centos-sclo-rh/x86_64

报错解释：这个错误表明系统无法为名为 "centos-sclo-rh" 的软件集合仓库找到有效的基础URL。这通常发生在CentOS系统上，当系统尝试使用已经停止支持的软件仓库时。

问题原因：Centos 7版本已经于2024/6/30结束了官方支持。

 

解决办法：

 

cd /etc/yum.repos.d/
mv CentOS-SCLo-scl.repo CentOS-SCLo-scl.repo.bak
mv CentOS-SCLo-scl-rh.repo CentOS-SCLo-scl-rh.repo.bak

 

# vim CentOS-SCLo-rh.repo

[centos-sclo-rh]
name=CentOS-7 - SCLo rh
baseurl=https://mirrors.aliyun.com/centos/7/sclo/x86_64/rh/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

　　

=======更新CentOS-Base.repo文件====================

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
  
#released updates
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
  
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
  
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
  
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

　　

============常见报错问题=============

mv   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo.bak
vim   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

　　

粘贴以下内容：

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (GNU/Linux)
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=+Gr2
-----END PGP PUBLIC KEY BLOCK-----

 

yum-config-manager --enable centos-sclo-rh
yum-config-manager --enable centos-sclo-sclo
yum clean all
yum makecache

　　

【常见问题】

1. failure: repodata/repomd.xml from centos-sclo-rh: [Errno 256] No more mirrors to try.

https://mirrors.aliyun.com/centos/7/sclo/x86_64/rh/repodata/repomd.xml: [Errno 14] curl#60 - "Peer's Certificate has expired."

检查步骤：1）服务器设备时间是否与北京时间一致  2）yum clean all && yum makecashe

 

自建本地yum源并下载rpm包

yum install yum-utils -y 
yumdownloader --resolve --destdir=/home/yum nfs-utils