rhel-server-7.0 更改yum源

1.檢查是否安裝yum軟件包.

[root@localhost ~]# rpm -qa |grep yum

yum-utils-1.1.31-24.el7.noarch

yum-langpacks-0.4.2-3.el7.noarch

yum-metadata-parser-1.1.4-10.el7.x86_64

yum-rhn-plugin-2.0.1-4.el7.noarch

PackageKit-yum-0.8.9-11.el7.x86_64

yum-3.4.3-118.el7.noarch

2.刪除RedHat自帶yum軟件包.

[root@localhost ~]#  rpm -qa | grep yum | xargs rpm -e --nodeps

[root@localhost ~]#  rpm -qa | grep yum

3.下載yum軟件包，使用CentOS 7的yum軟件包.

使用阿里雲地址下載

[root@localhost ~]# wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-metada ta-parser-1.1.4-10.el7.x86_64.rpm

[root@localhost ~]# wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-3.4.3- 150.el7.centos.noarch.rpm

[root@localhost ~]# wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-plugin -fastestmirror-1.1.31-40.el7.noarch.rpm

[root@localhost ~]# wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-utils- 1.1.31-40.el7.noarch.rpm

[root@localhost ~]# wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/python-url grabber-3.10-8.el7.noarch.rpm

（rpm -qa|grep python-urlgrabber|xargs rpm -e --nodeps ）  

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或使用163地址下載

[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-125.el7.centos.noarch.rpm

[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-29.el7.noarch.rpm

4.安裝Yum軟件包.

注意：單獨安裝包可能會產生依賴包（如yum和yum-fastestmirror會相互依賴）

[root@localhost ~]# rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm

[root@localhost ~]# rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm yum-3.4.3-150.el7 .centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm

5.更換Yum源，使用阿里雲或163的Yum源.

5.1 備份原鏡像文件

5.2 下載CentOS7-Base.repo到/etc/yum.repos.d/

[root@localhost ~]# wget -O /etc/yum.repos.d/CentOS7-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.re po

5.3 修改CentOS-Base.repo文件中的$releasever全部替換爲版本號7. 或下載下面文件上傳至/etc/yum.repos.d 目錄.

5.4 運行 yum makecache 生成緩存.

[root@localhost ~]# yum clean all  

[root@localhost ~]# yum makecache  

[root@localhost ~]# yum update

[root@localhost ~]# yum repolist