【亲测有效】Centos安装完成docker后启动docker报错docker: unrecognized service的两种解决方案

[root@Sakura ~]# service docker start 
docker: unrecognized service

[root@Sakura ~]# yum remove docker

[root@Sakura ~]# yum remove docker-selinux

[root@Sakura ~]# vi /etc/yum.repos.d/docker.repo

[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg

[root@Sakura ~]# yum install docker-engine

[root@Sakura ~]# service docker start

Starting cgconfig service:                                 [  OK  ]
Starting docker:                                           [  OK  ]

[root@Sakura ~]# curl -fsSL https://get.docker.com/ | sh + sh -c 'sleep 3; yum -y -q install docker-engine'

警告：/var/cache/yum/x86_64/7/docker-main-repo/packages/docker-engine-selinux-1.10.2-1.el7.centos.noarch.rpm: 头V4 RSA/SHA512 Signature, 密钥 ID 2c52609d: NOKEY docker-engine-selinux-1.10.2-1.el7.centos.noarch.rpm 的公钥尚未安装 导入 GPG key 0x2C52609D: 用户ID : "Docker Release Tool (releasedocker) " 指纹 : 5811 8e89 f3a9 1289 7c07 0adb f762 2157 2c52 609d 来自 : https://yum.dockerproject.org/gpg setsebool: SELinux is disabled. + sh -c 'docker version' Client: Version: 1.10.2 API version: 1.22 Go version: go1.5.3 Git commit: c3959b1 Built: Mon Feb 22 16:16:33 2016 OS/Arch: linux/amd64 Cannot connect to the Docker daemon. Is the docker daemon running on this host? If you would like to use Docker as a non-root user, you should now consider adding your user to the "docker" group with something like: sudo usermod -aG docker your-user Remember that you will have to log out and back in for this to take effect!

[root@Sakura ~]# service docker start Redirecting to /bin/systemctl start docker.service