RHELC-750 was created to have the CONVERT2RHEL_UNSUPPORTED_INCOMPLETE_ROLLBACK env var, among others, renamed to not use the word "unsupported". It didn't happen so this ticket is to remedy that.

The original RHELC-750 rationale from fgustavs@redhat.com:

The use of unsupported can be confusing and there is better ways of handling the logging of unsupported edge cases. It would be more beneficial to not say unsupported but rather go into detail of what went wrong or what could go wrong with the conversion and why that is the case, such as having a lot of unknown configurations, bad state that is indeterminate, third-party kernels that may modify things a lot and may cause conversion to brick machine etc.

Acceptance criteria:

• The CONVERT2RHEL_UNSUPPORTED_INCOMPLETE_ROLLBACK env var is renamed to not use the word unsupported
  • If this change goes to a convert2rhel release that has its major version bumped, the original env var can simply be replaced. If not, the original env var needs to be kept working for backwards compatibility reasons.