解决办法:python和yum 全部卸载 重新安装
步骤1:卸载python
rpm -qa|grep python|xargs rpm -e --allmatches --nodeps
whereis python|xargs rm -fr
步骤2:卸载yum
rpm -qa|grep yum|xargs rpm -e --allmatches --nodeps
rm -rf /etc/yum.repos.d/*
whereis yum|xargs rm -fr
从linux安装包ISO文件中,查找到python和yum相关的rpm文件,上传到linux服务器
3. 进入centos镜像网站找到自己对应系统需要的yum包
查看系统的命令:
[root@zf-test-web01-4 ~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
查看系统的位数:
[root@zf-test-web01-4 ~]# file /bin/ls
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=aa7ff68f13de25936a098016243ce57c3c982e06, stripped
http://vault.centos.org/
4. 下载这些yum包
wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm
wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm
5. 安装下载的这些yum包
[root@zf-test-web01-4 ~]# rpm -ivh yum-*
Preparing... ################################# [100%]
Updating / installing...
1:yum-metadata-parser-1.1.4-10.el7 ################################# [ 33%]
2:yum-plugin-fastestmirror-1.1.31-3################################# [ 67%]
3:yum-3.4.3-132.el7.centos.0.1 ################################# [100%]
[root@zf-test-web01-4 ~]#
由于本人系统中的repo源是订制的内网源,内网源又挂了,因此想找能够从外网下载的repo源,故此记录下
2、找到centos,打开Help
3、找到对应的centos版本的repo文件,下载下来,
4、放到/etc/yum.repo.d目录下,yum clean all; yum makecache
5、然后就可以yum install xxx