Well at least i thought that this would let me on Squeeze, but i was wrong.
I´ve did the upgrade to Buster today now on two machines, both with the following result. After upgrading freeradius wouldn´t start, so i looked into it and found out that somehow the folder: /etc/freeradius/3.0/sites-available was gone after the upgrade. Actually that caused the software to not start. I did a fresh Buster installation then, copied the folder and files to my old machines, changed the owner of the folder to "freerad" and now it´s up and running again. Im not really qualified i think to answer your question and though as you can read im not an Freeradius expert. Thanks for your input!
