I decided to neglect this since I didn’t know what happened: Raspberry Pi’s image SHA512 doesn’t match
I tried to proceed to the image installaton anyway, so I used the command
sudo dd if=.../YunoHost_v251_rpi.img of=/dev/mmcblk0
You said it migh take some minutes, but it has been running for an hour now and I still don’t have the prompt?
Is there something wrong? Can I stop it?