It's CoreOS (now called containerLinux) so they probably figure the end user will install containers instead of rpm packages. I haven't added anything to the base containerLinux image while using it, which is probably as intended.
I am so glad they changed the name. TinyCore and Core Linux were around before CoreOS and I always thought they robbed the name. Defiantly made for some confusion.
If you read the article they are changing it back to Red Hat CoreOS.
container linux was always pretty much useless to search for help for.
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