Right, when run the upgrade, it upgrades the inactive partition. That is why you reboot after the upgrade is done. If you waited 3 days later to reboot, any changes done in the past 3 days will not be included after the upgrade.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...