On 5/25/2015 12:12 PM, Jonathan Billings wrote:
On May 25, 2015, at 10:48 AM, Kirk Bocek t004@kbocek.com wrote:
It usually happens when I've wanted to change versions of the same software between repos and that software has been compiled differently. Usually audio-visual software. Yum install triggers a conflict and yum uninstall on the older package cascades a bunch of undesirable uninstalls. The only solution is rpm -e -nodeps followed by installing the newer package.
If you have a better solution, let me know.
Stop using those repos. Whatever you’re doing, you’re not using a repo or software packaged for the version of CentOS you are using. Could you give some examples? It would help to see these dependency mismatches in person.
If you want to use the software, find the source RPMs and rebuild them for the version of CentOS you’re using.
I am an avid user of MythTV and prefer to install from RPM. There are *very* few sources of those RPMS. ATRpms used to be my main source:
http://packages.atrpms.net/dist/
But Axel Thimm seems to have drifted off to better things and he stopped building the latest versions of Myth. SCRpms provided by Stephen Collier has picked up the torch:
Now the problem has been less these repos than the host of supporting audio-visual packages needed to get MythTV up and running: things like FFMpeg, the latest proprietary Nvidia driver, lirc. Often I have to go to third party repos to get things working.
One example of the conflicts involved here are the QT packages. It looks like CentOS 7 ships with QT 4.8 which is what MythTV currently requires. But CentOS 6 shipped with QT 4.6. Stephen Collier did a really good job compiling his 4.8 packages for CentOS 6 so they could install in parallel. *Except* for the qt-x11 package. That one cannot be installed in parallel. If you have anything depending on qt-x11, you'll have to rpm -e --nodeps the 4.6 package before installing the 4.8 package. The regular yum upgrade process somehow doesn't work. As I recall it wants to pull in a bunch of other stuff and conflicts arise.
The bigger issue is a project like MythTV being targeted at the bleeding edge like Fedora while I want to stay on the stable edge with CentOS. I've had to deal with this for years. MythTV will eventually move on to a library or a tool not supported by the base CentOS install and it will be a battle to get it to work.