This is so noob. I can’t believe I’m stuck at the second step.
Using Linux, I’ve downloaded the desktop .iso and .sig from with a web browser, but running the sha512sum -c command on the .sig file returns the error in the title.
I followed the instructions to curl the .img file and signature, but get the same error. Searching a bit, I learned that the format of the signature in a .sig file is supposed to be something like <file_checksum>, however it seems the .sig files are not in plain text. I suspect this might be either part of the problem or a red herring stemming from my misunderstanding of the process.
What am I doing wrong?