After booting up, the computer displays an error: One of the files containing integrity information for /boot is missing!
If you are setting up heads for the first time or upgrading from an older version, select Yes to create the missing files.
Otherwise this could indicate a compromise and you should select No to return to the main menu.
I press Yes.
Then it says: “Please confirm that your GPG card is inserted y/n.”
I select Yes.
After that, it gives an error: “Failed to update checksums / sign default config” and you can only press OK.
I click Options - Update checksums and sign all files in /boot and again I get the error Failed to update checksums / sign default config