How did you create the installation media?
With the dd command. Would an app such as Etcher also work?
Did you verify that the Qubes OS ISO is not corrupted?
Yes, I checked the signature and the checksum. The release signing key had different values from what’s posted on the Qubes website. I already asked about this on the forum,
Did you re-verify installation media after writing?
Yes, but I will try again