How to persistently store FW files in /mnt? (HAOS 10.5)


Is there some advice or guidance how to persistently store FW files in /mnt?

Whatever I store there, it does not survive a reboot, i.e. /mnt is always empty after a reboot.

Therefore, I cannot store and load FW files via kernel boot parameter, but I need these FW files for a USB DVB-T2 stick, attached to my Raspberry Pi 4 running this:

Home Assistant 2023.8.3
Supervisor 2023.08.1
Operating System 10.5
Frontend 20230802.1 - latest

Thanks for your help!

PS - I refer to this:

There was no need to start a new topic. Just bump the other one up the list by commenting on it.