On Sat, Dec 19, 2015 at 10:24 AM, Kynn Jones <kyn...@gmail.com> wrote:
> I apologize for all these apt-related questions.
>
> I have rtfm'd on this ad nauseam. For years, literally.
>
> Still, I'm routinely rendered utterly helpless by this sort of thing:
>
> % sudo apt-get -qq update
> % sudo apt-get -qq upgrade
> % sudo apt-get -qq dist-upgrade
> % sudo apt-get install ffmpeg
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
>
> The following packages have unmet dependencies:
> ffmpeg : Depends: libavcodec-ffmpeg56 (>= 7:2.7) but it is not
> going to be installed or
> libavcodec-ffmpeg-extra56 (>= 7:2.7) but it is
> not going to be installed
> Depends: libavdevice-ffmpeg56 (>= 7:2.6) but it is not
> going to be installed
> Depends: libavfilter-ffmpeg5 (>= 7:2.4) but it is not
> going to be installed
> Depends: libavformat-ffmpeg56 (>= 7:2.6) but it is not
> going to be installed
> E: Unable to correct problems, you have held broken packages.
>
>
> Where does one begin troubleshooting out such problems?
>
> Thanks in advance for any help.
>
> kj
>
>
> PS:
>
> # /etc/apt/apt.conf
> APT::Default-Release "jessie";
>
> # /etc/apt/preferences
> Package: /^r-/
> Pin: release n=stretch
> Pin-Priority: 995
>
> # /etc/apt/sources.list
> deb http://http.us.debian.org/debian jessie main contrib non-free
> deb http://http.us.debian.org/debian jessie-updates main contrib
> deb http://security.debian.org jessie/updates main contrib non-free
> deb-src http://http.us.debian.org/debian jessie main contrib
> deb-src http://http.us.debian.org/debian jessie-updates main contrib
> deb-src http://security.debian.org jessie/updates main contrib non-free
>
> deb http://http.us.debian.org/debian stretch main contrib non-free
> deb-src http://http.us.debian.org/debian stretch main contrib
>
> deb http://download.videolan.org/pub/debian/stable / # needed for
> libdvdcss2 (see http://www.videolan.org/developers/libdvdcss.html)
>
> I have made no changes to my /etc/apt/apt.conf.d/,
> /etc/apt/preferences.d, and /etc/apt/sources.list.d/ that I'm aware
> of. The last two of these directories are empty. The first one
> contains
>
> % ls -l /etc/apt/apt.conf.d
> -rw-rw-r-- 1 root root 82 Nov 22 13:45 00CDMountPoint
> -rw-rw-r-- 1 root root 40 Nov 22 13:45 00trustcdrom
> -rw-rw-r-- 1 root root 643 Nov 22 13:45 01autoremove
> -rw-r--r-- 1 root root 981 Dec 19 09:44 01autoremove-kernels
> -rw-rw-r-- 1 root root 243 Nov 22 13:45 20dbus
> -rw-rw-r-- 1 root root 141 Nov 22 13:45 20listchanges
> -rw-rw-r-- 1 root root 1040 Nov 22 13:45 20packagekit
> -rw-rw-r-- 1 root root 3945 Nov 22 13:45 50unattended-upgrades
> -rw-rw-r-- 1 root root 182 Nov 22 13:45 70debconf
An additional detail I noticed after I posted the message above:
% apt-cache policy ffmpeg
ffmpeg:
Installed: (none)
Candidate: 7:2.8.3-1
Version table:
7:2.8.3-1 0
500 http://http.us.debian.org/debian/ stretch/main amd64 Packages
I don't understand why the ffmpeg version from stretch comes out as
the best (and only remaining) candidate.
How can I find out why the ffmpeg version from jessie (whatever that
is) is not a candidate?
TIA,
kj
