During an attempt to upgrade webmin-virtual-server (4.17) I get this message:
Reading package lists... Building dependency tree... Reading state information... The following package was automatically installed and is no longer required: btsync-common Use 'apt-get autoremove' to remove them. The following packages will be upgraded: webmin-virtual-server 1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 4243 kB of archives. After this operation, 92.3 MB of additional disk space will be used.
WARNING: The following packages cannot be authenticated! webmin-virtual-server
E: There are problems and -y was used without --force-yes
Going through the issue list I did not find any solutions.
I am running: Linux 2.6.32-5-amd64 on x86_64