On Mon, 17 Dec 2018 at 06:04, Richard Owlett <rowl...@cloud85.net> wrote: > > My sources.list has lines of the form > deb trusted=yes file:/media/richard/debian9/dvd1 stable main contrib > > When using Synaptic's "Edit->Reload Package Information" the error > message is: > > E: Malformed entry 3 in list file /etc/apt/sources.list (URI parse) > > E: The list of sources could not be read. > > Go to the repository dialog to correct the problem. > > E: _cache->open() failed, please report. > > https://manpages.debian.org/stretch/apt/sources.list.5.en.html states
[snipped] > Whats my problem? > TIA Reading the URL you provided above, under the heading ONE-LINE-STYLE FORMAT we find this text: "If options should be provided they are separated by spaces and all of them together are enclosed by square brackets ([]) included in the line after the type separated from it with a space." Yes that is worth at least one facepalm.