# Docker basic installation questions - yum install docker vs docker-engine

**URL:** <https://forums.docker.com/t/docker-basic-installation-questions-yum-install-docker-vs-docker-engine/30101>\
**Category:** General\
**Tags:** docker\
**Created:** [March 22, 2017, 2:36am UTC](https://forums.docker.com/t/docker-basic-installation-questions-yum-install-docker-vs-docker-engine/30101 "2017-03-22T02:36:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dockervick](https://avatars.discourse-cdn.com/v4/letter/d/e99b99/32.png) [@dockervick](https://forums.docker.com/u/dockervick)\
**Post date:** [March 22, 2017, 2:36am UTC](https://forums.docker.com/t/docker-basic-installation-questions-yum-install-docker-vs-docker-engine/30101/1 "2017-03-22T02:36:00Z")

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Hi,

Usually I just install yum install docker and proceed. I tried to configure docker storage and noticed a few things which I wanted to clarify.

With the default repo in my oracle linux, when I do a yum install docker, then the docker-storage-setup service isn’t present. Then I see that I could do a yum install docker-engine as well. but that too doesn’t bring docker storage setup.

1. What is the basic difference between installing docker vs docker engine
2. When I added this in /etc/yum.repos.d

[virt7-docker-common-release]  
name=virt7-docker-common-release  
baseurl=http://mirror.centos.org/centos/7/extras/$basearch/  
gpgcheck=0

It installed docker-storage-setup, why is it so? IS it because the OEL7 repos might be old and doesnt install docker proper version? How do I check these things?

I’m still a beginner n Linux envs and learning currently. A link to some documentation would also suffice as I Wasnt able to find the answers o the above.

Thanks in Advance.

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**Author:** ![pennacook](https://sea3.discourse-cdn.com/docker/user_avatar/forums.docker.com/pennacook/32/13977_2.png) [@pennacook](https://forums.docker.com/u/pennacook)\
**Post date:** [March 27, 2017, 3:26pm UTC](https://forums.docker.com/t/docker-basic-installation-questions-yum-install-docker-vs-docker-engine/30101/2 "2017-03-27T15:26:07Z")

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docker-storage-setup is only in the extras, which is why you got it installed when your yum repo was configured as shown

> [virt7-docker-common-release]  
> name=virt7-docker-common-release  
> baseurl=[http://mirror.centos.org/centos/7/extras/$basearch/](http://mirror.centos.org/centos/7/extras/$basearch/)  
> gpgcheck=0

You can check what version you have installed by running the command docker version, if you had things running.