you need to generate a gkdefault.cfg file to force the upgrade. You need access to CCO downloads for the required "7912 tools" and cfgfmt utility. It includes instruction on how to configure the boot string in txt file, etc.
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...