How have you set up wifi? If you are setting up WiFi in the pi imager that will not work as HAOS does not work the same as other OS’s. As far as I know none of the other settings will work either.
Hello,
here is my experience with installing HA on SSD and Pi5:
I started up my Pi5 with the original 27W power supply and the 64bit OS. As microSD I have a 64GB card.
I then connected a Kingston 240GB SSD with the recommended adapter USB 3. I copied the OS to the SSD.
I removed the microSD card and the OS started, so SSD works on Pi5!
I installed the HA OS via imager on the SSD, it did not work.
I installed the HA OS with imager on a 64GB microSD, it works!!!
Now I set up the HA OS on the 64GB microSD and did an update.
All good…
Now I copied the microSD card to the SSD with Etcher on my Windows11 PC. Please note that you have to start Etcher in admin mode!
This took some time but was successful.
My HA OS which runs on a Pi4 now works with all data on the Pi5 on an SSD. I made a backup of the Pi4 system and then installed it on the Pi5. Everything worked fine.
I am not a Linux expert and have spent a lot of time installing HA on the Pi5. If anyone has any questions, maybe I can help…