Problems encountered in configuring Yum source

zero   Configuration environment

centos  

One Problems encountered

Question 1 : Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

http://mirrors.aliyun.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
http://mirrors.aliyuncs.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.cloud.aliyuncs.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.cloud.aliyuncs.com'"
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

resolvent ：

cd /etc/yum.repos.d vi CentOS-Base.repo :%s/$releasever/7/g # Put... In the file $releasever All changed 7 yum clean all && yum makecache # Clear and cache

among $releasever It's about getting you centos Version number of , For example, I centos Is the version number 6.7, What we get is 6, But it's gone , So the whole situation is changed to 7 that will do .

Question two ： Tips No more mirrors to try

Error Downloading Packages: binutils-2.27-44.base.el7.x86_64: failure: Packages/binutils-2.27-44.base.el7.x86_64.rpm from base: [Errno 256] No more mirrors to try.

resolvent ： Re Download

Question 3 ：Public key for glibc-common-2.17-317.el7.x86_64.rpm is not installed

resolvent ：

1 Import GPG keys:

#rpm -- import /etc/pki/rpm-gpg/PRM-GPG-KEY -*

2 modify yum Source file , skip gpg check( Not recommended )

hold repo The file is set to gpgcheck =0

Use yum install Add a parameter to it -no gpgcheck

3 Download the latest signature （ recommend ）

cd /etc/pki/rpm-gpg
wget http://mirrors.163.com/centos/RPM-KEY-CentOS-6
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

Question 4 ：ERROR with rpm_check_debug vs depsolve

ERROR with rpm_check_debug vs depsolve:

/sbin/new-kernel-pkg is needed by (installed) kernel-2.6.32-431.el6.x86_64

/sbin/new-kernel-pkg is needed by (installed) kernel-2.6.32-431.el6.x86_64

You could try running: rpm -Va --nofiles --nodigest

Your transaction was saved, rerun it with: yum load-transaction /tmp/yum_save_tx-2020-12-24-08-20xUyYyL.yumtx

  resolvent ： To be added

Two Download new CentOS-Base.repo To /etc/yum.repos.d/

 Centos-6

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-6.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-6.repo

Centos-7

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

Centos-8

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo

3、 ... and   yum Common operation commands of source

1 Clean cache ：yum clean all

2 Generate new cache ：yum makecache

3 perform yum to update ：yum update