Running "satellite-maintain packages update gofer" on Red Hat Capsule server 6.x results in: Procedures::Installer::Upgrade: Could not get default values, check log file at /var/log/foreman-installer/capsule.log for more information.

Issue

Running "satellite-maintain packages update gofer" on Red Hat Satellite 6.x Capsule server results in:

Procedures::Installer::Upgrade: Could not get default values, check log file at /var/log/foreman-installer/capsule.log for more information
                                      [FAIL]
Failed executing LANG=en_US.utf-8 foreman-installer  --disable-system-checks, exit status 25
--------------------------------------------------------------------------------
Scenario [update packages in unlocked session] failed.

The following steps ended up in failing state:

  [installer-upgrade]

Resolve the failed steps and rerun
the command. In case the failures are false positives,
use --whitelist="installer-upgrade"