linux误删yum、python以后重装
一：残余检查：
1：卸载python（以免有些同学没有卸载干净）
|
1
2
3
|
rpm -qa|grep python|xargs rpm -ev --allmatches --nodeps #强制删除已安装程序及其关联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 |
2.卸载yum
|
1
2
3
|
rpm -qa|grep yum|xargs rpm -ev --allmatches --nodepsrm -rf /etc/yum.repos.d/* |
|
1
|
whereis yum|xargs rm -frv<br> |
3.验证是否删除干净
|
1
|
whereis python #验证删除，返回应该是没有结果的<br>whereis yum |
二.先安装python，因为python是yum的依赖
python-devel-2.6.6-66.el6_8.x86_64.rpm
python-iniparse-0.3.1-2.1.el6.noarch.rpm
python-libs-2.6.6-66.el6_8.x86_64.rpm
python-pycurl-7.19.0-9.el6.x86_64.rpm
python-urlgrabber-3.9.1-11.el6.noarch.rpm
rpm-python-4.8.0-55.el6.x86_64.rpm
yum-3.2.29-81.el6.centos.noarch.rpm
yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
yum-plugin-fastestmirror-1.1.30-40.el6.noarch.rpm
cd /usr/local/src/python
rz -be #出现弹框，上传文件#这里建议先安装 python-*的文件，再安装rpm-python-*的文件，最后安装yum-*的文件
rpm -ivh python-*rpm -ivh rpm-python-*rpm -ivh yum-*很多人到这里之后会报错：
There are no enabled repos. Run "yum repolist all" to see the repos you have.
解决办法：
（1）wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS6-Base-163.repo
（2）gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6，之前的用 “#” 注释
PS:本日列出已经配置好的repo，大家可以直接复制内容到/etc/yum.repos.d/CentOS-Base.repo 即可使用。
# 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-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
ok，继续执行./yummain.py install yum，成功安装。
