CentOS7的yum重装

Love The Way You Lie 2022-10-09 14:22 166阅读 0赞

# **前言** #

腾讯云服务器上的本机python环境被我不小心卸载了，而yum依赖python环境，当我重新安装同版本的python环境后，做了如下操作，没有解决yum不能使用的问题(no module named yum)：

whereis yum 
    
    whereis python
    
    sudo rm -rf /usr/bin/python 
    
    sudo ln -s /usr/bin/python2.6/bin/python /usr/bin/python

# 整个重新安装过程 #

**1、删除现有的python**

rpm -qa|grep python|xargs rpm -ev –allmatches –nodeps \#\#强制清除已安装的程序及其关联

whereis python |xargs rm -frv \#\#删除所有残余文件 \#\#xargs，允许你对输出执行其他某些命令

whereis python \#\#验证删除，返回无结果说明清除干净

**2、删除现有的yum**

rpm -qa|grep yum|xargs rpm -ev –allmatches –nodeps

whereis yum |xargs rm -frv

**3、检查CentOS 7版本**  
cat /etc/centos-release

![5d3a0c62f78a4e3af5ad608453ae722d.png][]

**4、找到对应的依赖下载**  
http://vault.centos.org/  
http://mirrors.163.com/

*  python-2.7.5-34.el7.x86\_64.rpm
 *  python-iniparse-0.4-9.el7.noarch.rpm
 *  python-libs-2.7.5-34.el7.x86\_64.rpm
 *  python-pycurl-7.19.0-17.el7.x86\_64.rpm
 *  python-urlgrabber-3.10-7.el7.noarch.rpm
 *  rpm-python-4.11.3-17.el7.x86\_64.rpm
 *  yum-3.4.3-132.el7.centos.0.1.noarch.rpm
 *  yum-metadata-parser-1.1.4-10.el7.x86\_64.rpm
 *  yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/python-2.7.5-34.el7.x86_64.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/python-pycurl-7.19.0-17.el7.x86_64.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/python-urlgrabber-3.10-7.el7.noarch.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/rpm-python-4.11.3-17.el7.x86_64.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/python-libs-2.7.5-34.el7.x86_64.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
    wget https://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

**5、安装**

rpm -Uvh --replacepkgs python\*.rpm  
rpm -Uvh --replacepkgs rpm-python\*.rpm yum\*.rpm --nodeps --force

**6、验证**

![29be30f569946bc3e35a43fecb95cce1.png][]

[5d3a0c62f78a4e3af5ad608453ae722d.png]: /images/20221005/90d6a681248b452db470d909aac33621.png
[29be30f569946bc3e35a43fecb95cce1.png]: /images/20221005/c0dbcb1fae5d4f47bf25f576a36ff25a.png