Anne Wilson wrote:
Being a lengthy process, I continued working on the main laptop while it progressed, so wasn't giving it my full attention, but I think the download process happens while you are in rl5, dropping out to rl3 when the actual update happens. But I couldn't swear to that.
If you just run "yum upgrade" or "yum update" (they behave the same by default), that's not what happens. To achieve that, you have to: yum --downloadonly upgrade telinit 3 yum -C upgrade
On the other hand, preupgrade does drop you out of the running system, it does the upgrade in an Anaconda environment.
Kevin Kofler