There should be a note in upgrade documents that after upgrade "PXE loader" should be to "PXELinux BIOS" or based on provisioning method. An end user when trying to provision machines after upgrade would only see the default PXE menu, however there is a new option introduced in 6.3 called "PXELinux BIOS" and "PXELinux UEFI" depending on the provisioning requirement. These values are by default set to none. So, an additional setup for the end user would be to set these values after upgrade.
Assigning Russell as the QA contact. Russell - could you take a look at the changes for this bug?
(In reply to Andrew Dahms from comment #4) > Assigning Russell as the QA contact. > > Russell - could you take a look at the changes for this bug? and fell free to change the QA contact.
Updating the doc type.
*** Bug 1527007 has been marked as a duplicate of this bug. ***