Ok, so I am deeply confused. DOwnloaded the image, the SHA1sum is correct.
Unpacked the image, wrote it on an 32GB SD card from Samsung. I am booting from an RPI4 with 4GB of RAM. Are the 4GBs the issue?
I can ssh to it, it will send me its public key, and I can give the login and the password, but providing "root" as login and hitting enter upon the password gives me this: