Hi,


I've been having issues trying to upgrade an old Raspberry Pi 1B rev 2
to Raspbian Buster (or Raspberry OS).

I bought a WiFi adapter and it worked out of the box with Stretch. I
usually use this device in a headless setup so as soon as I rebooted I
stopped having access to the pi. Then I tried to flash a SD card with
Buster straight from the Raspberry Pi website (the lite version because
it's headless) and I had the same outcome (previously I added a
wpa_supplicant.conf and added an empty "ssh" file to /boot).

Do you know what's going on? I booted the last SD card with a monitor
and I couldn't find any strange errors. I have to say that the adapter
is not faulty because I flashed a backup I made of the SD card with
Stretch and it's just fine.

Thanks in advance :)

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