（Linux）基于yum解决Docker完全卸载与Docker安装_yum 卸载docker

一.docker卸载

       1.   systemctl stop docker  停止服务

        2.   yum list installed |grep docker   查看yum安装得docker文件包

        3.    rpm -qa |grep docker    查看docker相关的rpm源文件

        4.    yum -y remove docker-ce.x86_64   

                删除所有安装的docker文件包  （remove后面根据你本身安装得docker安装包名）

         5.  rm -rf /var/lib/docker  删除docker的镜像文件，默认在/var/lib/docker目录下

    这几步完事 docker就已经卸载完了

二. 安装docker

   1. yum -y install yum-utils device-mapper-persistent-data lvm2   下载docker依赖组件

   2. yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo    设置docker下载得镜像地址

  3. yum -y install docker-ce 安装docker服务 

  注:    我安装docker时候报这个错

 docker安装错误:错误：软件包：docker-ce-rootless-extras-20.10.17-3.el7.x86_64 (docker-ce-stable) 需要：slirp4netns

 

解决办法  : 

1. #卸载依赖
yum remove docker-ce docker-ce-cli containerd.io
#删除资源
rm -rf /var/lib/docker  # docker默认的工作路径
rm -rf /var/lib/containerd

或者   cd /etc/yum.repos.d
# 在/etc/yum.repos.d下执行
mv CentOS-Base.repo CentOS-Base.repo.bak
vim /etc/yum.repos.d/CentOS-Base.repo
到etc目录下找到这个文件夹里得这个文件 将内容修改
 
[base]
name=CentOS-$releasever - Base
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
 
#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
 
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
 
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

然后在执行

yum install docker-ce docker-ce-cli containerd.io
systemctl start docker

就安装上了