I followed the instructions in this blog “https://blogs.oracle.com/hlsu/install-docker-on-oracle-linux-7” to install docker engine in my Oracle Linux 7 server.
This is my log for yum install docker-engine :
Loaded plugins: langpacks ol7_UEKR4 | 1.2 kB 00:00:00 ol7_addons | 1.2 kB 00:00:00 ol7_latest | 1.4 kB 00:00:00 Resolving Dependencies --> Running transaction check ---> Package docker-engine.x86_64 0:17.06.2.ol-1.0.1.el7 will be installed --> Processing Dependency: container-selinux >= 2.9 for package: docker-engine-17.06.2.ol-1.0.1.el7.x86_64 --> Running transaction check ---> Package container-selinux.noarch 2:2.21-1.el7 will be installed --> Processing Dependency: selinux-policy-targeted >= 3.13.1-39 for package: 2:container-selinux-2.21-1.el7.noarch --> Processing Dependency: selinux-policy-base >= 3.13.1-39 for package: 2:container-selinux-2.21-1.el7.noarch --> Running transaction check ---> Package selinux-policy-targeted.noarch 0:3.13.1-166.0.3.el7_4.7 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================================================================================ Package Arch Version Repository Size ================================================================================================================================================ Installing: docker-engine x86_64 17.06.2.ol-1.0.1.el7 ol7_addons 21 M Installing for dependencies: container-selinux noarch 2:2.21-1.el7 ol7_addons 28 k selinux-policy-targeted noarch 3.13.1-166.0.3.el7_4.7 ol7_latest 6.5 M Transaction Summary ================================================================================================================================================ Install 1 Package (+2 Dependent packages) Total download size: 27 M Installed size: 92 M Is this ok [y/d/N]: y Downloading packages: (1/3): container-selinux-2.21-1.el7.noarch.rpm | 28 kB 00:00:00 (2/3): docker-engine-17.06.2.ol-1.0.1.el7.x86_64.rpm | 21 MB 00:00:21 (3/3): selinux-policy-targeted-3.13.1-166.0.3.el7_4.7.noarch.rpm | 6.5 MB 00:00:29 ------------------------------------------------------------------------------------------------------------------------------------------------ Total 935 kB/s | 27 MB 00:00:29 Running transaction check Running transaction test Transaction test succeeded Running transaction warning: Failed to open SELinux handle. Installing : selinux-policy-targeted-3.13.1-166.0.3.el7_4.7.noarch 1/3 Installing : 2:container-selinux-2.21-1.el7.noarch 2/3 Installing : docker-engine-17.06.2.ol-1.0.1.el7.x86_64 3/3 Verifying : docker-engine-17.06.2.ol-1.0.1.el7.x86_64 1/3 Verifying : selinux-policy-targeted-3.13.1-166.0.3.el7_4.7.noarch 2/3 Verifying : 2:container-selinux-2.21-1.el7.noarch 3/3 Installed: docker-engine.x86_64 0:17.06.2.ol-1.0.1.el7 Dependency Installed: container-selinux.noarch 2:2.21-1.el7 selinux-policy-targeted.noarch 0:3.13.1-166.0.3.el7_4.7 Complete!
it seems to have installed correctly but the next step i,e. to start the docker gives me this error :
—># 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.
–>#systemctl status docker.service
docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/docker.service.d
└─docker-sysconfig.conf
Active: failed (Result: start-limit) since Thu 2017-12-28 17:48:45 IST; 13s ago
Docs: https://docs.docker.com
Process: 26093 ExecStart=/usr/bin/dockerd $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $INSECURE_REGISTRY (code=exited, status=1/FAILURE)
Main PID: 26093 (code=exited, status=1/FAILURE)
Dec 28 17:48:45 Linuxtest systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Dec 28 17:48:45 Linuxtest systemd[1]: Failed to start Docker Application Container Engine.
Dec 28 17:48:45 Linuxtest systemd[1]: Unit docker.service entered failed state.
Dec 28 17:48:45 Linuxtest systemd[1]: docker.service failed.
Dec 28 17:48:45 Linuxtest systemd[1]: docker.service holdoff time over, scheduling restart.
Dec 28 17:48:45 Linuxtest systemd[1]: start request repeated too quickly for docker.service
Dec 28 17:48:45 Linuxtest systemd[1]: Failed to start Docker Application Container Engine.
Dec 28 17:48:45 Linuxtest systemd[1]: Unit docker.service entered failed state.
Dec 28 17:48:45 Linuxtest systemd[1]: docker.service failed.
–>#journalctl -xe -l -u docker | tail -n 50
[root@Linuxtest ~]# journalctl -xe -l -u docker | tail -n 50 -- Subject: Unit docker.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has begun starting up. Dec 29 08:54:39 Linuxtest dockerd[44034]: time="2017-12-29T08:54:39.738769156+05:30" level=info msg="libcontainerd: new containerd process, pid: 44041" Dec 29 08:54:40 Linuxtest dockerd[44034]: time="2017-12-29T08:54:40.754043731+05:30" level=fatal msg="Your Linux kernel version 3.8.13-55.1.6.el7uek.x86_64 is not supported for running docker. Please upgrade your kernel to 3.10.0 or newer." Dec 29 08:54:40 Linuxtest systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 29 08:54:40 Linuxtest systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Dec 29 08:54:40 Linuxtest systemd[1]: Unit docker.service entered failed state. Dec 29 08:54:40 Linuxtest systemd[1]: docker.service failed. Dec 29 08:54:40 Linuxtest systemd[1]: docker.service holdoff time over, scheduling restart. Dec 29 08:54:40 Linuxtest systemd[1]: Starting Docker Application Container Engine... -- Subject: Unit docker.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has begun starting up. Dec 29 08:54:40 Linuxtest dockerd[44060]: time="2017-12-29T08:54:40.970832804+05:30" level=info msg="libcontainerd: new containerd process, pid: 44063" Dec 29 08:54:41 Linuxtest dockerd[44060]: time="2017-12-29T08:54:41.978053869+05:30" level=fatal msg="Your Linux kernel version 3.8.13-55.1.6.el7uek.x86_64 is not supported for running docker. Please upgrade your kernel to 3.10.0 or newer." Dec 29 08:54:41 Linuxtest systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 29 08:54:41 Linuxtest systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Dec 29 08:54:41 Linuxtest systemd[1]: Unit docker.service entered failed state. Dec 29 08:54:41 Linuxtest systemd[1]: docker.service failed. Dec 29 08:54:42 Linuxtest systemd[1]: docker.service holdoff time over, scheduling restart. Dec 29 08:54:42 Linuxtest systemd[1]: start request repeated too quickly for docker.service Dec 29 08:54:42 Linuxtest systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Dec 29 08:54:42 Linuxtest systemd[1]: Unit docker.service entered failed state. Dec 29 08:54:42 Linuxtest systemd[1]: docker.service failed.
Can someone please explain why is this happening? Thanks a lot!
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Answer
Please note the error message
Your Linux kernel version 3.8.13-55.1.6.el7uek.x86_64 is not supported for running docker. Please upgrade your kernel to 3.10.0 or newer.
You need kernel 3.10+ to install docker