In this discussion the customer requests to make the use of blocked images more clear as a better way to workaround deleted images problem instead of the --continue-on-error

After discussion with the docs team and rhn-support-snarayan, it appears that since this is not a solution nor a workaround that should be applied in all situations, it is better to be described on knowledge base instead of documentation.

Acceptance criteria
Publish KB article about

• When to use blocked images
• how to use it
• what are the things to watch out for