ttech
..... BUT it is what I did before (see comment 13 for bug 8788), and it didn't work that time. This time I also added ...
signal-event yum-modify
I didn't do that the first time as it wasn't mentioned in the bug comment.
Is this the difference?
Most probably.
The changes you made before will not take effect until you issue
signal-event yum-modify
or
alternatively (& especially if in doubt), you should always issue
signal-event post-upgrade
signal-event reboot
The latter commands will cover all possible changes you can make to the system with db commnds & custom templates etc, so they or a reduced command set, should always be issued after making changes.