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Re: Ubuntu PPA gnuradio-releases doesn't actually install

From: Josh
Subject: Re: Ubuntu PPA gnuradio-releases doesn't actually install
Date: Wed, 22 Jul 2020 09:09:59 -0400

This should be resolved now in the PPA for Ubuntu 20.04 - thanks to Paul coming up with the correct naming structure for the package!


On Thu, Jul 16, 2020 at 9:06 AM Paul Boven <p.boven@xs4all.nl> wrote:
Hi everyone,

Ubuntu 20.04 (Focal) ships with GNU Radio I have
added the gnuradio-releases PPA on my machine, assuming that it would
get me the slightly newer release version of However, after
adding the PPA, the Ubuntu provided release candidate version still gets
installed, not the PPA version.

apt policy gnuradio:
   Version table:
  *** 500
         500 http://nl.archive.ubuntu.com/ubuntu focal/universe amd64
         100 /var/lib/dpkg/status 500
         500 http://ppa.launchpad.net/gnuradio/gnuradio-releases/ubuntu
focal/main amd64 Packages

So the package is seen as available, but the OS prefers the rc1 version.
Is this because the version number string is considered 'higher'
alphabetically than the version string of the PPA version?
( against Did we get the
naming or version numbering convention wrong in the PPA?

After some research, I managed to install the PPA version:
sudo apt install gnuradio=

This fails at first, because all of the Ubuntu provided gnuradio library
packages have in their name, whereas the PPA packages don't - so
they are not seen as up/downgrades, and instead, massive file conflicts
ensue. These can be resolved by first removing the gnuradio package, and
all its dependencies, and then installing the gnuradio from the PPA.
This will then pull in all the dependencies from the PPA as well.

But on the next 'apt upgrade', the PPA version will be replaced again by
the OS version (causing the same level of mayhem), unless I start
pinning stuff.

(I don't particularly need anything that's in the release version,
versus the release candidate version, as far as I know - I was just
surprised that when switching to this PPA, I didn't actually get the
release version and had to investigate).

Regards, Paul Boven.

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