So @Joulinar I try the new Buster image today on my Odroid HC1.
Spent a bit of time setting up the sata drive and some partitions and left it for a few hours.
Now i am locked out of SSH.
did you reboot the system after SSH is not working anymore? After reboot, is it still same? Do you have direct access to the system (to check what happen) or just SSH?
Pls let us know if a solution is working. This could help others if they hit by similar situation. Your DietPi Team