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Cleanup Oracle install instructions #1027

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25 changes: 2 additions & 23 deletions engine/installation/linux/oracle.md
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Expand Up @@ -156,13 +156,7 @@ Linux Administrator's Solution
Guide](http://docs.oracle.com/cd/E37670_01/E37355/html/index.html) for details
on how to create and mount btrfs filesystems.

To enable btrfs support on Oracle Linux:

1. Ensure that `/var/lib/docker` is on a btrfs filesystem.

2. Edit `/etc/sysconfig/docker` and add `-s btrfs` to the `OTHER_ARGS` field.

3. Restart the Docker daemon:
To enable btrfs support on Oracle Linux, ensure that `/var/lib/docker` is on a btrfs filesystem.

## Uninstallation

Expand All @@ -178,21 +172,6 @@ and volumes run the following command:

You must delete the user created configuration files manually.

## Known issues

### Docker unmounts btrfs filesystem on shutdown
If you're running Docker using the btrfs storage engine and you stop the Docker
service, it will unmount the btrfs filesystem during the shutdown process. You
should ensure the filesystem is mounted properly prior to restarting the Docker
service.

On Oracle Linux 7, you can use a `systemd.mount` definition and modify the
Docker `systemd.service` to depend on the btrfs mount defined in systemd.

### SElinux support on Oracle Linux 7
SElinux must be set to `Permissive` or `Disabled` in `/etc/sysconfig/selinux` to
use the btrfs storage engine on Oracle Linux 7.

## Further issues?

If you have a current Basic or Premier Support Subscription for Oracle Linux,
Expand All @@ -201,4 +180,4 @@ Request at [My Oracle Support](https://support.oracle.com).

If you do not have an Oracle Linux Support Subscription, you can use the [Oracle
Linux
Forum](https://community.oracle.com/community/server_%26_storage_systems/linux/oracle_linux) for community-based support.
Forum](https://community.oracle.com/community/server_%26_storage_systems/linux/oracle_linux) for community-based support.