[Trisquel-users] Re : debian mark and unmark non free repositories

[lcerf]

From the "Synaptic Pacage Manager" (in the "System Settings"), click the  
"Origin" button in the bottom-left part of the window, then choose the  
non-free section above, select all the listed of packages (a click on the  
first one and a shift click on the last one), right-click on the selection,  
choose "Mark for Complete Removal", click on the "Apply" button and confirm.