* Updated Oracle Linux instructions
* Change the note about the UEK4, because it's not only required for `btrfs` support
* Added a note about the fact that Oracle also ships a supported package with the same name as upstream
* Added a note about the fact that we've already deprecated docker-engine-selinux
* Added a link to the Oracle Linux Docker User's Guide
* Fixed the GPG key section as it will not be shown during the `makecache fast` run but rather will automatically be accepted when the yum install command is run.
* Added a note about disabling the `-y` parameter to prevent the automatic acceptance of the upstream GPG key
* Provided the specific GPG key output for better validation
* Provide context about the fact that `docker-engine` exists in the Oracle Linux addons repo as well and may appear in the results of the `yum ilst` command.
* Provide more context for the `btrfs` subvolume removal
* overlay2 is only supported on UEK4
The default RHCK (3.10) does not support overlay2.
Signed-off-by: Avi Miller <avi.miller@gmail.com>
Misty Stanley-Jones
Avi Miller
tradfor
Misty Stanley-Jones
Gaetan
John Mulhausen