I tried both methods listed in this guide. https://qubes.3isec.org/Templates_4.1_README.html Unfortunately, none of them worked. I copied the RPM files to dom0. When I try to verify the templates I always get a negative output. I used the unman key 4B1F … C2EF, and downloaded the files several times from the official repo.
rpm -K template_name.rpm
template_name.rpm: checksum SIGANTURE NOT OK
The second method is similar.
sudo nano /etc/qubes/repo-templates/3isec-templates.repo
qvm-template list
[Qrexec] ERROR: Failed to download metadata for repo ‘3isec-templates’: cannot download repomd.xml: cannot download repodata/repomd.XML: All mirrors were tried ERROR qrexec call ‘qubes.TemplateSearch’ failed.
Does anyone know whats the problem? @unman