redhat 7的 yum 安装,使用的centos镜像

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centos 源镜像地址 http://mirrors.163.com/centos/7/updates/x86_64/

1.首先查看redhat 7.0系统本身所安装的那些yum 软件包:

  rpm -qa | grep yum              #列出所有已安装的yum包

2.删除这些包:

  rpm -e *.rpm –nodeps            #删除所有以前的yum包

3.下载新的yum rpm包:(2016/12/8 最新版本rpm,如果404 NOT FOUND错误,自己进去网址,下载最新的安装包放到redhat上面)

http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm
http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-utils-1.1.31-34.el7.noarch.rpm
http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-updateonboot-1.1.31-34.el7.noarch.rpm
http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

可以也下载的
python-urlgrabber-3.10-8.el7.noarch.rpm;python-kitchen-1.1.1-5.el7.noarch.rpm;python-iniparse-0.4-9.el7.noarch.rpm

4.安装下载的rpm包:

[root@redhat 7 /]# rpm -ivh yum-* --nodeps警告:yum-3.4.3-150.el7.centos.noarch.rpm: 头V3 RSA/SHA256 Signature, 密钥 ID f4a80eb5: NOKEY准备中...                          ################################# [100%]正在升级/安装...   1:yum-metadata-parser-1.1.4-10.el7 ################################# [ 20%]   2:yum-plugin-fastestmirror-1.1.31-4################################# [ 40%]   3:yum-3.4.3-150.el7.centos         ################################# [ 60%]   4:yum-updateonboot-1.1.31-40.el7   ################################# [ 80%]   5:yum-utils-1.1.31-40.el7          ################################# [100%]

5 安装后的vi 新建个文件 : vi /etc/yum.repos.d/CentOS-Base.repo

然后编辑 文件

[base]name=CentOS-7-Basebaseurl=http://mirrors.163.com/centos/7/os/x86_64/gpgcheck=0#released updates[updates]name=CentOS-7- Updatesbaseurl=http://mirrors.163.com/centos/7/updates/x86_64/gpgcheck=0gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7#packages used/produced in the build but not released[addons]name=CentOS-7- Addonsbaseurl=http://mirrors.163.com/centos/7/sclo/x86_64/sclo/gpgcheck=0gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that may be useful[extras]name=CentOS-7- Extrasbaseurl=http://mirrors.163.com/centos/7/extras/x86_64/gpgcheck=0gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that extend functionality of existing packages[centosplus]name=CentOS-7- Plusbaseurl=http://mirrors.163.com/centos/7/centosplus/x86_64/gpgcheck=0enabled=1这里的 gpgcheck=0 如果=1代表的需要gpg校验,新人的练习的话建议关了到这里就已经配置完成了。事宜使用yum安装了
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