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解除安裝重裝yum
作業系統版本:centos7
[[email protected] ~]# uname -r
3.10.0-514.el7.x86_64
一、将現有的yum源解除安裝
[[email protected] ~]# rpm -qa yum
yum-3.4.3-150.el7.centos.noarch
[[email protected] ~]# rpm -qa | grep yum | xargs rpm -e --nodeps #這一步一定要執行,而且要将所有的元件解除安裝掉,如果解除安裝不幹淨,後面安裝會有問題
[[email protected] ~]# rpm -qa yum
二、從centos官網上下載下傳和yum有關的rpm包
- 下載下傳rpm包
[[email protected] ~]# wget http://mirror.centos.org/centos/7/os/x86_64/Packages/yum-3.4.3-150.el7.centos.noarch.rpm
[[email protected] ~]# wget http://mirror.centos.org/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
[[email protected] ~]# wget http://mirror.centos.org/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm
備注:如果是centos6,應下載下傳以下rpm包
http://mirror.centos.org/centos/6/os/x86_64/Packages/yum-3.2.29-81.el6.centos.noarch.rpm
http://mirror.centos.org/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
http://mirror.centos.org/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-40.el6.noarch.rpm
- 安裝
[[email protected] ~]# ls
yum-3.4.3-150.el7.centos.noarch.rpm
yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm
[[email protected] ~]# rpm -ivh yum-* #安裝
[[email protected] ~]# rpm -qa yum #檢視是否已經安裝上
yum-3.4.3-150.el7.centos.noarch.rpm
三、檢測安裝的yum是否有問題,執行指令進行測試
備注 :
- 不同的作業系統版本,要從官網上下載下傳不同的rpm包,官網位址”http://mirror.centos.org/centos/“,然後根據自己作業系統的版本選擇即可。
- 如果出現安裝好以後,yum還是不能用的情況,那肯是是原有的yum沒有删除幹淨,再次執行以下指令,重新安裝yum即可。
rpm -qa|grep yum|xargs rpm -e --nodeps
- 如果有需要導入證書的情況,請從官網上找到連結,導入即可
rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7
轉載于:https://www.cnblogs.com/browselife/p/10646373.html