I think I am getting this error "WARNING: The following packages cannot be
authenticated!" because I was adding repositories to trisquel.
How do I get rid of the non free repositories. I want to keep videolan and
handbrake. Libdvdcss2 and handbrake repo is gnu friendly right?
Here is a list of my trusted.gpg file.
apt-key list
/etc/apt/trusted.gpg
--------------------
pub 1024D/8D8AEBF1 2007-01-14
uid Trisquel GNU/Linux (Trisquel GNU/Linux signing key)
sub 2048g/ECBB0F64 2007-01-14
pub 2048R/B84288D9 2013-08-27
uid VideoLAN APT Signing Key
sub 2048R/288D4A2C 2013-08-27
pub 4096R/46D7E7CF 2009-05-15
uid GetDeb Archive Automatic Signing Key
/etc/apt/trusted.gpg.d/aheck-ppa.gpg
------------------------------------
pub 1024R/A5CCD09F 2009-05-05
uid Launchpad PPA for Andreas Heck
/etc/apt/trusted.gpg.d/stebbins-handbrake-releases.gpg
------------------------------------------------------
pub 1024R/816950D8 2010-04-14
uid Launchpad HandBrake Snapshots
/etc/apt/trusted.gpg.d/ubuntukylin-archive-keyring.gpg
------------------------------------------------------
pub 4096R/5E1D3C58 2014-04-09
uid Ubuntu Kylin Archive Automatic Signing Key
sub 4096R/DF6E30B5 2014-04-09