Homeassistant service failed

With “adapter” you mean “controller”?

You should be able to just clone the disk and boot from the new one without incidence. If it is larger, enable the following service first, to expand filesystem automatically on boot:

systemctl enable dietpi-fs_partition_resize

I hope it’s not smaller, that would make cloning more complicated: Running DietPi from an USB stick or an onboard eMMC