System failure
 

Hi.
How could I solve this problem?

[root@gnome gnome]# yum update
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Update Process
Loading mirror speeds from cached hostfile
* base: mirror.gtdinternet.com
* epel: epel.gtdinternet.com
* extras: mirror.gtdinternet.com
* nux-dextop: mirror.li.nux.ro
* rpmfusion-free-updates: mirror.nexcess.net
* rpmfusion-nonfree-updates: mirror.nexcess.net
* updates: mirror.gtdinternet.com
Resolving Dependencies
--> Running transaction check
---> Package ffmpeg-libs.x86_64 0:0.10.4-2.el6.nux will be updated
---> Package ffmpeg-libs.x86_64 0:0.10.15-1.el6 will be an update
--> Processing Dependency: libx264.so.120()(64bit) for package: ffmpeg-libs-0.10.15-1.el6.x86_64
--> Processing Dependency: libcelt0.so.1()(64bit) for package: ffmpeg-libs-0.10.15-1.el6.x86_64
---> Package gstreamer-plugins-ugly.x86_64 0:0.10.18-3.el6.nux will be updated
---> Package gstreamer-plugins-ugly.x86_64 0:0.10.18-4.el6 will be an update
--> Processing Dependency: libx264.so.120()(64bit) for package: gstreamer-plugins-ugly-0.10.18-4.el6.x86_64
---> Package libdvbpsi.x86_64 0:0.1.7-1.el6.nux will be updated
---> Package libdvbpsi.x86_64 0:0.2.2-2.el6 will be an update
---> Package libva-freeworld.x86_64 0:0.32.0-1.sds2.el6.nux will be obsoleted
--> Processing Dependency: libva-0.32.0.2.so.1()(64bit) for package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64
--> Processing Dependency: libva-glx-0.32.0.2.so.1()(64bit) for package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64
--> Processing Dependency: libva-x11-0.32.0.2.so.1()(64bit) for package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64
---> Package libva-intel-driver.x86_64 0:1.0.15-4.el6 will be obsoleting
---> Package live555.x86_64 0:0-0.34.2012.01.25.el6.nux will be updated
---> Package live555.x86_64 0:0-0.37.2012.04.27.el6 will be an update
---> Package vlc.x86_64 0:2.0.8-3.el6.nux will be updated
---> Package vlc.x86_64 0:2.0.10-1.el6 will be an update
---> Package vlc-core.x86_64 0:2.0.8-3.el6.nux will be updated
---> Package vlc-core.x86_64 0:2.0.10-1.el6 will be an update
--> Processing Dependency: libx264.so.120()(64bit) for package: vlc-core-2.0.10-1.el6.x86_64
--> Running transaction check
---> Package celt.x86_64 0:0.8.0-1.el6 will be installed
---> Package ffmpeg-libs.x86_64 0:0.10.15-1.el6 will be an update
--> Processing Dependency: libx264.so.120()(64bit) for package: ffmpeg-libs-0.10.15-1.el6.x86_64
---> Package gstreamer-plugins-ugly.x86_64 0:0.10.18-4.el6 will be an update
--> Processing Dependency: libx264.so.120()(64bit) for package: gstreamer-plugins-ugly-0.10.18-4.el6.x86_64
---> Package libva-freeworld.x86_64 0:0.32.0-1.sds2.el6.nux will be obsoleted
--> Processing Dependency: libva-0.32.0.2.so.1()(64bit) for package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64
--> Processing Dependency: libva-glx-0.32.0.2.so.1()(64bit) for package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64
--> Processing Dependency: libva-x11-0.32.0.2.so.1()(64bit) for package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64
---> Package vlc-core.x86_64 0:2.0.10-1.el6 will be an update
--> Processing Dependency: libx264.so.120()(64bit) for package: vlc-core-2.0.10-1.el6.x86_64
--> Finished Dependency Resolution
Error: Package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64 (@nux-dextop)
Requires: libva-0.32.0.2.so.1()(64bit)
Removing: libva-freeworld-0.32.0-1.sds2.el6.nux.x86_64 (@nux-dextop)
libva-0.32.0.2.so.1()(64bit)
Obsoleted By: libva-intel-driver-1.0.15-4.el6.x86_64 (rpmfusion-free-updates)
Not found
Error: Package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64 (@nux-dextop)
Requires: libva-x11-0.32.0.2.so.1()(64bit)
Removing: libva-freeworld-0.32.0-1.sds2.el6.nux.x86_64 (@nux-dextop)
libva-x11-0.32.0.2.so.1()(64bit)
Obsoleted By: libva-intel-driver-1.0.15-4.el6.x86_64 (rpmfusion-free-updates)
Not found
Error: Package: ffmpeg-libs-0.10.15-1.el6.x86_64 (rpmfusion-free-updates)
Requires: libx264.so.120()(64bit)
Available: x264-libs-0.120-4.20120303.el6_bootstrap.x86_64 (rpmfusion-free-updates)
libx264.so.120()(64bit)
Available: x264-libs-0.120-5.20120303.el6.x86_64 (rpmfusion-free-updates)
libx264.so.120()(64bit)
Available: x264-libs-0.120-5.20120303.el6.nux.x86_64 (nux-dextop)
libx264.so.120()(64bit)
Available: x264-libs-0.120-6.20120303.el6.nux.x86_64 (nux-dextop)
libx264.so.120()(64bit)
Installed: x264-libs-0.142-7.20140728gitaf8e768.el6.nux.x86_64 (@nux-dextop)
Not found
Available: x264-libs-0.0.0-0.28.20100706gitd058f37.el6.nux.x86_64 (nux-dextop)
Not found
Available: x264-libs-0.0.0-0.31.20110811.el6.nux.x86_64 (nux-dextop)
Not found
Error: Package: gstreamer-vaapi-0.2.12-3.el6.nux.x86_64 (@nux-dextop)
Requires: libva-glx-0.32.0.2.so.1()(64bit)
Removing: libva-freeworld-0.32.0-1.sds2.el6.nux.x86_64 (@nux-dextop)
libva-glx-0.32.0.2.so.1()(64bit)
Obsoleted By: libva-intel-driver-1.0.15-4.el6.x86_64 (rpmfusion-free-updates)
Not found
Error: Package: vlc-core-2.0.10-1.el6.x86_64 (rpmfusion-free-updates)
Requires: libx264.so.120()(64bit)
Available: x264-libs-0.120-4.20120303.el6_bootstrap.x86_64 (rpmfusion-free-updates)
libx264.so.120()(64bit)
Available: x264-libs-0.120-5.20120303.el6.x86_64 (rpmfusion-free-updates)
libx264.so.120()(64bit)
Available: x264-libs-0.120-5.20120303.el6.nux.x86_64 (nux-dextop)
libx264.so.120()(64bit)
Available: x264-libs-0.120-6.20120303.el6.nux.x86_64 (nux-dextop)
libx264.so.120()(64bit)
Installed: x264-libs-0.142-7.20140728gitaf8e768.el6.nux.x86_64 (@nux-dextop)
Not found
Available: x264-libs-0.0.0-0.28.20100706gitd058f37.el6.nux.x86_64 (nux-dextop)
Not found
Available: x264-libs-0.0.0-0.31.20110811.el6.nux.x86_64 (nux-dextop)
Not found
Error: Package: gstreamer-plugins-ugly-0.10.18-4.el6.x86_64 (rpmfusion-free-updates)
Requires: libx264.so.120()(64bit)
Available: x264-libs-0.120-4.20120303.el6_bootstrap.x86_64 (rpmfusion-free-updates)
libx264.so.120()(64bit)
Available: x264-libs-0.120-5.20120303.el6.x86_64 (rpmfusion-free-updates)
libx264.so.120()(64bit)
Available: x264-libs-0.120-5.20120303.el6.nux.x86_64 (nux-dextop)
libx264.so.120()(64bit)
Available: x264-libs-0.120-6.20120303.el6.nux.x86_64 (nux-dextop)
libx264.so.120()(64bit)
Installed: x264-libs-0.142-7.20140728gitaf8e768.el6.nux.x86_64 (@nux-dextop)
Not found
Available: x264-libs-0.0.0-0.28.20100706gitd058f37.el6.nux.x86_64 (nux-dextop)
Not found
Available: x264-libs-0.0.0-0.31.20110811.el6.nux.x86_64 (nux-dextop)
Not found
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest

I want to install ffmpeg... Hope you can help me out.

Last time I used EL6, I dropped rpmfusion repos. I saw updates, but couldn't upgrade because of dependency problems. So, try to remove them, nux-dextop would be enough. And, quite frankly, the title of the thread is misleading.

mixing third party repos is never a great idea
the cent wiki stresses that

also you have not installed and CONFIGURED!!! yum-priorites

that plugin was made to PREVENT your issue

see the wiki
https://wiki.centos.org/AdditionalRe...s/Repositories

the plugin ( this link is on the ABOVE link )
https://wiki.centos.org/PackageManag...Yum/Priorities

Ok. So I'm gonna do some more studies. Thanks to both of you.