On Fri, Jun 12, 2020 at 04:40:22PM +0300, Reco wrote: > For "apt source" to work you need to add two lines: > > deb http://approx:9999/debian/ unstable main contrib non-free > deb-src http://approx:9999/debian/ unstable main contrib non-free
Incorrect. Do *not* add a "deb" line for unstable to a stable system. Only add the "deb-src" line. Beyond that, the OP is using some local mirror, so only they will know what the correct sources.list lines should be.
