Chapter 2. Prerequisites

On RHEL Atomic Host, atomic is part of the OSTree and is ready to use.
On Red Hat Enterprise Linux, make sure you have covered the following:
- Subscribe the system to the Extras channel which provides the atomic package.

For Red Hat Subscription Management run this command:

subscription-manager repos --enable rhel-7-server-extras-rpms

# subscription-manager repos --enable rhel-7-server-extras-rpms

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If you are using Satellite, run:

rhn-channel --add --channel rhel-x86_64-server-extras-7

# rhn-channel --add --channel rhel-x86_64-server-extras-7

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yum install atomic

# yum install atomic

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systemctl status docker

# systemctl status docker

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If the output states "inactive", use the following command:

systemctl start docker

# systemctl start docker

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Note

On both systems, you need to have root privileges to use atomic.