Home assistant green - recover with micro sd

Hi there, I just starting to work with home assistant, so far so good. When I tried to setup tailscale for remote access, I realized that I do not have the supervisor package installed. So I created a recover micro SD. However, when I plug in, press the button and energize the HA green, the yellow LED is on static. It seems that the HA does not recognize the flash card. What can I do?

Wait.
It will eventually complete the update and things will be rosy.
The supervisor package should be pre-installed.
Sometimes this can take many hours. Leave it overnight.