Linux Redhat 7 安装免费yum源
出处地址：http://www.cnblogs.com/nbartchen/p/8565816.html
1、查看是否安装相关包
rpm -qa|grep yum|xargs rpm -e --nodeps
2、下载rpm包到本地、并安装
curl -O http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-163.el7.centos.noarch.rpm
curl -O http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
curl -O http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-52.el7.noarch.rpm
3、安装rpm包
rpm -ivh yum-*
4、备份redhat yum源，新建免费yum源目录
mv /etc/yum.repos.d/ /etc/yum.repos.d.backup
mkdir /etc/yum.repos.d
5、下载yum Centos7 yum源、移动到yum目录
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
mv CentOS7-Base-.repo /etc/yum.repos.d
6、修改文件相关内容
# 进入文件 编辑 CentOS7-Base-163.repo
:%s/$releasever//g
7、更新yum缓存测试使用
yum clean all
yum makecache
yum repolist all
注：如上述不生效需采取另一种方式
rpm -ivh yum-*
警告：yum-3.4.-.el7.centos.noarch.rpm: 头V3 RSA/SHA256 Signature, 密钥 ID f4a80eb5: NOKEY
错误：依赖检测失败：
python-urlgrabber >= 3.10- 被 yum-3.4.-.el7.centos.noarch 需要
rpm >= :4.11.- 被 yum-3.4.-.el7.centos.noarch 需要
报错
1、python-urlgrabber和rpm包升级
curl -O http://mirrors.163.com/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-9.el7.noarch.rpm
curl -O http://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-4.11.3-40.el7.x86_64.rpm
rpm -Uvh rpm-4.11.3-40.el7.x86_64.rpm --nodeps
rpm -Uvh python-urlgrabber-3.10-9.el7.noarch.rpm --nodeps
2、添加vim源
vim /etc/yum.repos.d/CentOS-Base.repo
#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-$7 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/7/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 #released updates
[updates]
name=CentOS-$7 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/7/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 #additional packages that may be useful
[extras]
name=CentOS-$7 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/7/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 #additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$7 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
配置文件
3、更新yum缓存测试使用
yum clean all
yum makecache
yum repolist all