Document URL: https://access.redhat.com/documentation/en/red-hat-satellite/6.2/single/installation-guide#configuring_capsule_custom_server_certificate
Section Number and Name: 4.7.5. Configuring Capsule Server with a Custom Server Certificate
Describe the issue: When upgrading a Capsule Server, the installer checks for the certificates TAR file. If this file is not found, the installer will fail with a message similar to the following:
[ERROR 2017-01-26 14:30:45 main] tar -xzf /var/tmp/srvcapsule01.tar returned 2 instead of one of 
Suggestions for improvement: Add a notice to the custom certificates documentation, instructing customers to retain the certificates archive (TAR) file, even after those certificates have been deployed to all relevant hosts.
Additional information: This BZ ticket was raised in response to a customer case being managed by Sam Yangsao, and discussed via IRC (#sysmgmt).
Assigning to Zac for review.