Linux中修改docker映象源及安裝docker
阿新 • • 發佈：2018-12-13
1、首先備份系統自帶yum源配置檔案/etc/yum.repos.d/CentOS-Base.repo
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
2、進入yum源配置檔案所在的資料夾
cd /etc/yum.repos.d/
3、下載163的yum源配置檔案(CentOS7)
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
清華大學映象源地址：https://mirrors.tuna.tsinghua.edu.cn/
4、清理快取
yum clean all
5、測試下載安裝
yum install gcc
6、安裝docker
yum install docker
7、啟動
systemctl start docker
啟動報錯
[[email protected] yum.repos.d]# systemctl start docker Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details. [[email protected] yum.repos.d]# systemctl status docker ● docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled) Active: failed (Result: exit-code) since Wed 2018-12-12 07:27:23 UTC; 28s ago Docs: http://docs.docker.com Process: 4166 ExecStart=/usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --init-path=/usr/libexec/docker/docker-init-current --seccomp-profile=/etc/docker/seccomp.json $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY $REGISTRIES (code=exited, status=1/FAILURE) Main PID: 4166 (code=exited, status=1/FAILURE) Dec 12 07:27:21 localhost.localdomain systemd[1]: Starting Docker Application Container Engine... Dec 12 07:27:22 localhost.localdomain dockerd-current[4166]: time="2018-12-12T07:27:22.024162402Z" level=warning msg="could not change group /var/run/docker...t found" Dec 12 07:27:22 localhost.localdomain dockerd-current[4166]: time="2018-12-12T07:27:22.038636556Z" level=info msg="libcontainerd: new containerd process, pid: 4170" Dec 12 07:27:23 localhost.localdomain dockerd-current[4166]: Error starting daemon: SELinux is not supported with the overlay2 graph driver on this kernel. ...d=false) Dec 12 07:27:23 localhost.localdomain systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 12 07:27:23 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine. Dec 12 07:27:23 localhost.localdomain systemd[1]: Unit docker.service entered failed state. Dec 12 07:27:23 localhost.localdomain systemd[1]: docker.service failed. Hint: Some lines were ellipsized, use -l to show in full.
根據提示檢視一下詳情，執行：journalctl -xe
Dec 13 06:42:24 localhost.localdomain dockerd[2719]: time="2018-12-13T06:42:24.350020859Z" level=info msg="libcontainerd: new containerd process, pid: 2722" Dec 13 06:42:25 localhost.localdomain dockerd[2719]: time="2018-12-13T06:42:25.356303658Z" level=error msg="[graphdriver] prior storage driver overlay2 failed: driver Dec 13 06:42:25 localhost.localdomain dockerd[2719]: Error starting daemon: error initializing graphdriver: driver not supported
錯誤原因：error initializing graphdriver: driver not supported
解決辦法：在 /etc/docker 目錄下建立daemon.json檔案，並且加入以下配置
touch daemon.json
vi daemon.json
{
"storage-driver": "overlay2",
"storage-opts": [
"overlay2.override_kernel_check=true"
]
}
再次啟動
systemctl start docker
問題解決