解除安裝yum

檢視：rpm -qa |grep yum

解除安裝：rpm -aq|grep yum|xargs rpm -e --nodeps

還是無意間執行yum remove yum解除安裝了yum，重新安裝思路如下：

安裝yum

下載RPM包http://mirrors.163.com/centos/7/os/x86_64/Packages/

centos7為例：

wegethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-10.el7.noarch.rpm

wegethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-cron-3.4.3-168.el7.centos.noarch.rpm

wegethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm

wegethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

wegethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm

rpm -ivh --force --nodepspython-urlgrabber-3.10-10.el7.noarch.rpm

rpm -ivh --force --nodepsyum-cron-3.4.3-168.el7.centos.noarch.rpm

rpm -ivh --force --nodepsyum-3.4.3-168.el7.centos.noarch.rpm

rpm -ivh --force --nodepsyum-metadata-parser-1.1.4-10.el7.x86_64.rpm

rpm -ivh --force --nodepsyum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm

yum

如果出現

no module named yum

這個問題解決方案：

下載： http://mirrors.163.com/centos/7/os/x86_64/Packages/

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-2.7.5-89.el7.x86_64.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-chardet-2.2.1-3.el7.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-devel-2.7.5-89.el7.x86_64.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-kitchen-1.1.1-5.el7.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-libs-2.7.5-89.el7.x86_64.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-pycurl-7.19.0-19.el7.x86_64.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-setuptools-0.9.8-7.el7.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-10.el7.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-python-4.11.3-45.el7.x86_64.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-aliases-1.1.31-54.el7_8.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-protectbase-1.1.31-54.el7_8.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-updateonboot-1.1.31-54.el7_8.noarch.rpm

wgethttp://mirrors.163.com/centos/7/os/x86_64/Packages/yum-utils-1.1.31-54.el7_8.noarch.rpm

rpm -ivh --force *.rpm --nodeps

然後再yum

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