Problems with 3rd party repos when installing VLC

[pieniValkoinenHattu]

Hi,

Could you help me resolving this error

CODE

[root@ISENMIC-EU0I8NA yum.repos.d]# yum --enablerepo=linuxtech-testing install vlc Loaded plugins: refresh-packagekit Error: Cannot retrieve repository metadata (repomd.xml) for repository: rpmfusion-free. Please verify its path and try again

I'm new on SL, before I was on ubuntu until it broke several times.
Is it just a feeling or SL is less "user friendly" than ubuntu ?

Thank you for answering

[redman]

QUOTE (pieniValkoinenHattu @ Apr 10 2012, 09:14 PM)

Is it just a feeling or SL is less "user friendly" than ubuntu ?

First of all, you might want to explain that a little bit.
What do you consider to be "less user friendly"?
When answering this, please keep in mind that Ubuntu is aimed at a completely different kind of users than RHEL (and thus SL). Ubuntu has been created for the home users. RHEL is created to be used on corporate like servers. And as such, lacks the eye-candy and user apps Ubuntu has.

[pieniValkoinenHattu]

QUOTE

First of all, you might want to explain that a little bit. What do you consider to be "less user friendly"?

What I meant is that I never had any problems instaling something with synaptic whereas I have many dependency problems on SL. But it may be because my system is not well configured.

But let's go back to the point: do you have any idea about how to solve my problem ?
Please.

[redman]

The error you mentioned is related to the RPMfusion repo (not being able to download the file with the list of packages).
That might be caused by a problem on their website (which might be solved by now).

[pieniValkoinenHattu]

Hum...still not working.

QUOTE

[root@ISENMIC-EU0I8NA ~]# yum --disablerepo=rpmfusion-free* --enablerepo=linuxtech-testing install vlc Loaded plugins: refresh-packagekit Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package vlc.x86_64 0:2.0.1-2.el6 will be installed --> Processing Dependency: libavformat.so.53(LIBAVFORMAT_53)(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libavcodec.so.53(LIBAVCODEC_53)(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: bitstream-vera-serif-fonts for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libpostproc.so.52(LIBPOSTPROC_52)(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libvcdinfo.so.0(VCDINFO_0)(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libswscale.so.2(LIBSWSCALE_2)(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libavcodec.so.53()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libupnp.so.3()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libmodplug.so.0()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libfluidsynth.so.1()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libpostproc.so.52()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libvcdinfo.so.0()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libmpcdec.so.6()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libbluray.so.1()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libthreadutil.so.2()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libxosd.so.2()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libgoom2.so.0()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libtiger.so.5()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libminizip.so.1()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libswscale.so.2()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libprojectM.so.2.0.1()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libavformat.so.53()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Running transaction check ---> Package bitstream-vera-serif-fonts.noarch 0:1.10-18.el6 will be installed --> Processing Dependency: bitstream-vera-fonts-common = 1.10-18.el6 for package: bitstream-vera-serif-fonts-1.10-18.el6.noarch ---> Package fluidsynth-libs.x86_64 0:1.1.3-1.el6 will be installed --> Processing Dependency: liblash.so.1()(64bit) for package: fluidsynth-libs-1.1.3-1.el6.x86_64 ---> Package libavcodec53.x86_64 0:0.10.2-54.el6 will be installed ---> Package libavformat53.x86_64 0:0.10.2-54.el6 will be installed ---> Package libbluray1.x86_64 0:0.2.2-2.el6 will be installed ---> Package libgoom2.x86_64 0:0-3.el6 will be installed ---> Package libpostproc52.x86_64 0:0.10.2-54.el6 will be installed ---> Package libprojectM.x86_64 0:2.0.1-5.el6 will be installed --> Processing Dependency: bitstream-vera-sans-mono-fonts for package: libprojectM-2.0.1-5.el6.x86_64 --> Processing Dependency: bitstream-vera-sans-fonts for package: libprojectM-2.0.1-5.el6.x86_64 --> Processing Dependency: libGLEW.so.1.5()(64bit) for package: libprojectM-2.0.1-5.el6.x86_64 Package glew is obsoleted by glew-utils, but obsoleting package does not provide for requirements --> Processing Dependency: libftgl.so.2()(64bit) for package: libprojectM-2.0.1-5.el6.x86_64 ---> Package libswscale2.x86_64 0:0.10.2-54.el6 will be installed ---> Package libtiger.x86_64 0:0.3.3-3.el6 will be installed ---> Package libvcdinfo.x86_64 0:0.7.24-3.el6 will be installed ---> Package libxosd2.x86_64 0:2.2.14-4.el6 will be installed ---> Package minizip.x86_64 0:1.2.3-25.el6 will be installed --> Processing Dependency: zlib = 1.2.3-25.el6 for package: minizip-1.2.3-25.el6.x86_64 ---> Package musepack-tools.x86_64 0:sv8-3.svn435.el6 will be installed --> Processing Dependency: libcuefile.so.0()(64bit) for package: musepack-tools-sv8-3.svn435.el6.x86_64 --> Processing Dependency: libreplaygain.so.1()(64bit) for package: musepack-tools-sv8-3.svn435.el6.x86_64 ---> Package vlc.x86_64 0:2.0.1-2.el6 will be installed --> Processing Dependency: libupnp.so.3()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libmodplug.so.0()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libthreadutil.so.2()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Running transaction check ---> Package bitstream-vera-fonts-common.noarch 0:1.10-18.el6 will be installed ---> Package bitstream-vera-sans-fonts.noarch 0:1.10-18.el6 will be installed ---> Package bitstream-vera-sans-mono-fonts.noarch 0:1.10-18.el6 will be installed ---> Package cuetools.x86_64 0:1.4.0-0.6.svn305.el6 will be installed ---> Package ftgl.x86_64 0:2.1.3-0.3.rc5.el6 will be installed ---> Package lash.x86_64 0:0.5.4-9.el6 will be installed ---> Package libprojectM.x86_64 0:2.0.1-5.el6 will be installed --> Processing Dependency: libGLEW.so.1.5()(64bit) for package: libprojectM-2.0.1-5.el6.x86_64 Package glew is obsoleted by glew-utils, but obsoleting package does not provide for requirements ---> Package libreplaygain.x86_64 0:0.9.1-0.1.svn453.el6 will be installed ---> Package vlc.x86_64 0:2.0.1-2.el6 will be installed --> Processing Dependency: libupnp.so.3()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libmodplug.so.0()(64bit) for package: vlc-2.0.1-2.el6.x86_64 --> Processing Dependency: libthreadutil.so.2()(64bit) for package: vlc-2.0.1-2.el6.x86_64 ---> Package zlib.i686 0:1.2.3-25.el6 will be installed --> Finished Dependency Resolution Error: Package: vlc-2.0.1-2.el6.x86_64 (atrpms)           Requires: libupnp.so.3()(64bit)           Available: libupnp-1.6.6-3.el6.x86_64 (atrpms)               libupnp.so.3()(64bit)           Installed: libupnp-1.6.13-1.el6.x86_64 (@epel)               Not found           Available: libupnp-1.6.15-3.el6.i686 (linuxtech-release)               Not found Error: Package: libprojectM-2.0.1-5.el6.x86_64 (atrpms)           Requires: libGLEW.so.1.5()(64bit)           Available: glew-1.5.4-1.el6.x86_64 (atrpms)               libGLEW.so.1.5()(64bit)           Available: glew-1.5.5-1.el6.x86_64 (epel)               libGLEW.so.1.5()(64bit) Error: Package: vlc-2.0.1-2.el6.x86_64 (atrpms)           Requires: libmodplug.so.0()(64bit)           Available: 1:libmodplug-0.8.7-2.el6.x86_64 (atrpms)               libmodplug.so.0()(64bit)           Installed: 1:libmodplug-0.8.8.3-2.el6.x86_64 (@epel)               Not found           Available: libmodplug-0.8.8.3-3.el6.x86_64 (linuxtech-release)               Not found           Available: libmodplug-0.8.8.4-1.el6.i686 (linuxtech-release)               Not found Error: Package: vlc-2.0.1-2.el6.x86_64 (atrpms)           Requires: libthreadutil.so.2()(64bit)           Available: libupnp-1.6.6-3.el6.x86_64 (atrpms)               libthreadutil.so.2()(64bit)           Installed: libupnp-1.6.13-1.el6.x86_64 (@epel)               Not found           Available: libupnp-1.6.15-3.el6.i686 (linuxtech-release)               Not found You could try using --skip-broken to work around the problem

I trried "--skip-broken" but it did not work. Is it possible to solve these dependency problems automaticaly ?

[U308]

It's repo hell
I think you would do well to set up your repos to avoid conflicts by using priorities.
I have posted my setup here - see link below. (Ignore the remi repo which is no longer required).
Also when installing from linuxtech-testing: --disablerepo=* --enablerepo=linuxtech-testing
atrpms tend to cause problems - best try to avoid.
Anyway just to give an idea what I have done. So far I only had one or two minor problems over 1 year.

http://sharetext.org/DPZR

[tux99]

You have way too many third party repos active, many third party repos are incompatible with each other. I have only tested my vlc 2.0 package when using the official SL6/Centos6 repos and the linuxtech repo.

I would suggest you disable at least temporarily the epel and atrpms repo.

Also atrpms contains an alternative vlc 2.0 package which I would not recommend as it will replace a core system library (libxcb) with it's own version as dependency (my vlc package includes a statically linked newer libxcb instead to avoid messing with the core libraries).

[pieniValkoinenHattu]

Thank you for your help, I think we are getting to it but it does not work yet.

CODE

[root@ISENMIC-EU0I8NA yum.repos.d]# yum repolist Loaded plugins: refresh-packagekit repo id                                                      repo name                                                                                  status adobe-linux-x86_64                                           Adobe Systems Incorporated                                                                     2 google-chrome                                                google-chrome                                                                                  3 linuxtech-backports                                          LinuxTECH.NET el6 backports repo                                                              17 linuxtech-release                                            LinuxTECH.NET el6 production repo                                                            509 linuxtech-testing                                            LinuxTECH.NET el6 testing repo                                                                60 sl                                                           Scientific Linux 6.1 - x86_64                                                              6,251 sl-livecd-extra                                              Extra Packages for LiveCD/DVD 6.1 - x86_64                                                    60 sl-security                                                  Scientific Linux 6.1 - x86_64 - security updates                                           1,098 repolist: 8,000 [root@ISENMIC-EU0I8NA yum.repos.d]# yum install vlc Loaded plugins: refresh-packagekit Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package vlc.x86_64 0:2.0.0-2.el6 will be installed --> Processing Dependency: libx264.so.115()(64bit) for package: vlc-2.0.0-2.el6.x86_64 --> Processing Dependency: libminizip.so.1()(64bit) for package: vlc-2.0.0-2.el6.x86_64 --> Processing Dependency: libmatroska.so.4()(64bit) for package: vlc-2.0.0-2.el6.x86_64 --> Processing Dependency: libebml.so.3()(64bit) for package: vlc-2.0.0-2.el6.x86_64 --> Processing Dependency: libcrystalhd.so.3()(64bit) for package: vlc-2.0.0-2.el6.x86_64 --> Processing Dependency: libbluray.so.1()(64bit) for package: vlc-2.0.0-2.el6.x86_64 --> Running transaction check ---> Package libbluray.x86_64 0:0.2.2-0.git20120222.1.el6 will be installed --> Processing Dependency: java-1.6.0-openjdk for package: libbluray-0.2.2-0.git20120222.1.el6.x86_64 ---> Package libcrystalhd.x86_64 0:20110917-1.el6 will be installed ---> Package libebml.x86_64 0:1.0.0-1.el6.rf will be updated ---> Package libebml.x86_64 0:1.2.1-1.el6 will be an update ---> Package libmatroska.x86_64 0:1.0.0-1.el6.rf will be updated ---> Package libmatroska.x86_64 0:1.2.0-1.el6 will be an update ---> Package libx264.x86_64 0:0.115-0.20110510.1.el6 will be installed ---> Package minizip.x86_64 0:1.2.3-25.el6 will be installed --> Processing Dependency: zlib = 1.2.3-25.el6 for package: minizip-1.2.3-25.el6.x86_64 --> Running transaction check ---> Package java-1.6.0-openjdk.x86_64 1:1.6.0.0-1.43.1.10.6.el6_2 will be installed --> Processing Dependency: rhino for package: 1:java-1.6.0-openjdk-1.6.0.0-1.43.1.10.6.el6_2.x86_64 --> Processing Dependency: tzdata-java for package: 1:java-1.6.0-openjdk-1.6.0.0-1.43.1.10.6.el6_2.x86_64 ---> Package zlib.i686 0:1.2.3-25.el6 will be installed --> Running transaction check ---> Package rhino.noarch 0:1.7-0.7.r2.2.el6 will be installed --> Processing Dependency: jline for package: rhino-1.7-0.7.r2.2.el6.noarch ---> Package tzdata-java.noarch 0:2012b-3.el6 will be installed --> Running transaction check ---> Package jline.noarch 0:0.9.94-0.8.el6 will be installed --> Finished Dependency Resolution Error: Protected multilib versions: zlib-1.2.3-25.el6.i686 != zlib-1.2.3-27.el6.x86_64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest

I think this error comes from the previous attempt to install vlc:

CODE

---> Package zlib.i686 0:1.2.3-25.el6 will be installed

how can I uninstall it ?

[tux99]

QUOTE (pieniValkoinenHattu @ Apr 12 2012, 06:43 PM)

CODE Error: Protected multilib versions: zlib-1.2.3-25.el6.i686 != zlib-1.2.3-27.el6.x86_64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest I think this error comes from the previous attempt to install vlc: CODE ---> Package zlib.i686 0:1.2.3-25.el6 will be installed how can I uninstall it ?

I'm not sure where your zlib package is coming from but it's certainly not from the linuxtech repo as I don't have any zlib package in it.

I suspect it has to do with you previously having 'fastbugs' enabled and now disabled.

To help you, can you post the output of the following:

CODE

yum list  all | grep minizip yum list all | grep zlib

[pieniValkoinenHattu]

What are 'fastbugs' ?

CODE

[isen@localhost ~]$ yum list all | grep minizip mingw32-minizip.noarch               1.2.3-20.el6              sl               minizip.i686                         1.2.3-25.el6              sl               minizip.x86_64                       1.2.3-25.el6              sl               minizip-devel.i686                   1.2.3-25.el6              sl               minizip-devel.x86_64                 1.2.3-25.el6              sl               [isen@localhost ~]$ yum list all | grep zlib zlib.x86_64                          1.2.3-27.el6              @/zlib-1.2.3-27.el6.x86_64 jzlib.x86_64                         1.0.7-7.5.el6             sl               jzlib-demo.x86_64                    1.0.7-7.5.el6             sl               jzlib-javadoc.x86_64                 1.0.7-7.5.el6             sl               mingw32-zlib.noarch                  1.2.3-20.el6              sl               mingw32-zlib-static.noarch           1.2.3-20.el6              sl               zlib.i686                            1.2.3-25.el6              sl               zlib-devel.i686                      1.2.3-25.el6              sl               zlib-devel.x86_64                    1.2.3-25.el6              sl               zlib-static.x86_64                   1.2.3-25.el6              sl

[tux99]

QUOTE (pieniValkoinenHattu @ Apr 13 2012, 08:10 AM)

What are 'fastbugs' ? CODE [isen@localhost ~]$ yum list all | grep minizip mingw32-minizip.noarch               1.2.3-20.el6              sl               minizip.i686                         1.2.3-25.el6              sl               minizip.x86_64                       1.2.3-25.el6              sl               minizip-devel.i686                   1.2.3-25.el6              sl               minizip-devel.x86_64                 1.2.3-25.el6              sl               [isen@localhost ~]$ yum list all | grep zlib zlib.x86_64                          1.2.3-27.el6              @/zlib-1.2.3-27.el6.x86_64 jzlib.x86_64                         1.0.7-7.5.el6             sl               jzlib-demo.x86_64                    1.0.7-7.5.el6             sl               jzlib-javadoc.x86_64                 1.0.7-7.5.el6             sl               mingw32-zlib.noarch                  1.2.3-20.el6              sl               mingw32-zlib-static.noarch           1.2.3-20.el6              sl               zlib.i686                            1.2.3-25.el6              sl               zlib-devel.i686                      1.2.3-25.el6              sl               zlib-devel.x86_64                    1.2.3-25.el6              sl               zlib-static.x86_64                   1.2.3-25.el6              sl

Ok,as I thought you have zlib-1.2.3-27 (from the fastbugs repo installed) but you don't have the fastbugs repo enabled anymore (probably due to applying U308's config), so you need to either reenable fastbugs or downgrade zlib.
My suggestion to you would be to enable fastbugs (IMHO there is no reason not to have it enabled on a desktop system).
With regards to fastbugs see here:
https://www.scientificlinux.org/documentation/faq/yum.apt.repo

[redman]

QUOTE (tux99 @ Apr 13 2012, 11:44 AM)

My suggestion to you would be to enable fastbugs (IMHO there is no reason not to have it enabled on a desktop system).

Although I think I understand your motivation, I disagree.

QUOTE (scientific-linux-website)

It is not enabled by default, because sometimes bugfixes change the way a program works, and the releases of S.L. are designed to be very stable.

Because stability is also a good thing for homeusers (who simply want a solid system without any hassle).
This is a choice that needs to be taken carefully (and everyone for themselves).

[tux99]

QUOTE (redman @ Apr 13 2012, 12:52 PM)

QUOTE (tux99 @ Apr 13 2012, 11:44 AM) My suggestion to you would be to enable fastbugs (IMHO there is no reason not to have it enabled on a desktop system). Although I think I understand your motivation, I disagree. QUOTE (scientific-linux-website) It is not enabled by default, because sometimes bugfixes change the way a program works, and the releases of S.L. are designed to be very stable. Because stability is also a good thing for homeusers (who simply want a solid system without any hassle). This is a choice that needs to be taken carefully (and everyone for themselves).

Fair enough but then please explain to pieniValkoinenHattu how to fix his currently broken dependencies without reenabling fastbugs.

Apart from that since pieniValkoinenHattu has had fastbugs enabled previously, he will most likely have several other fastbugs updates installed so he will encounter similar broken dependecy issues over and over again. At this point the only solution is to either reenable fastbugs (easy and perfectly fine solution) or to downgrade all installed fastbugs packages (which is far from trivial).

BTW, redman could you or any other mod/admin please move all posts related to pieniValkoinenHattu's problem into a separate thread as his problems have nothing to do with the vlc package or my repo (but are general repo config issues)?

[redman]

QUOTE (tux99 @ Apr 13 2012, 12:58 PM)

Apart from that since pieniValkoinenHattu has had fastbugs enabled previously, he will most likely have several other fastbugs updates installed so he will encounter similar broken dependecy issues over and over again. At this point the only solution is to either reenable fastbugs (easy and perfectly fine solution) or to downgrade all installed fastbugs packages (which is far from trivial).

My remark was a warning for others to think before they act. There have been too many situations here where others blindly followed peoples advice without knowing what would/could happen. Braking a system isn't too hard, reparing it afterwards is.

Problems related to repos (either too much repos enabled including the problems described here) can take a lot of time getting solved. It requires a certain kind of knowledge and experience to solve. In my experience the fastes and safest way out of the situation described is a clean/fresh reinstall. Especially when someone is new to the OS he or she is using.

QUOTE (tux99 @ Apr 13 2012, 12:58 PM)

BTW, redman could you or any other mod/admin please move all posts related to pieniValkoinenHattu's problem into a separate thread as his problems have nothing to do with the vlc package or my repo (but are general repo config issues)?

Wanted to do that but hadn't gotten around.
Topic split

[pieniValkoinenHattu]

Thank you for warning me, I think I should have subscribe to this forum earlier...

I have not installed any package from sl-fastbugs.
But anyway, I think the package zlib I have installed is (if I understand correctly the command)

CODE

[isen@ISENMIC-EU0I8NA ~]$ yum list installed | grep zlib zlib.x86_64                         1.2.3-27.el6               @/zlib-1.2.3-27.el6.x86_64

I looked closer and saw it comes from:

CODE

---> Package minizip.x86_64 0:1.2.3-25.el6 will be installed --> Processing Dependency: zlib = 1.2.3-25.el6 for package: minizip-1.2.3-25.el6.x86_64

So I watch where the conflicting package would come from:

CODE

[isen@ISENMIC-EU0I8NA ~]$ yum list all | grep zlib.i686 zlib.i686                            1.2.3-25.el6              sl

I don't know the meaning of the error message:

CODE

Error: Protected multilib versions: zlib-1.2.3-25.el6.i686 != zlib-1.2.3-27.el6.x86_64

But maybe the information I posted would be helpful.

[tux99]

QUOTE (pieniValkoinenHattu @ Apr 13 2012, 09:49 PM)

Thank you for warning me, I think I should have subscribe to this forum earlier... I have not installed any package from sl-fastbugs. But anyway, I think the package zlib I have installed is (if I understand correctly the command) CODE [isen@ISENMIC-EU0I8NA ~]$ yum list installed | grep zlib zlib.x86_64                         1.2.3-27.el6              @/zlib-1.2.3-27.el6.x86_64

You do have at least zlib installed from sl-fastbugs. Version 1.2.3-27.el6 comes from fastbugs. Most likely this was installed automatically as an upgrade when you had sl-fastbugs enabled (and therefore plenty other fastbugs packages got installed as automatic upgrades too).

You need to either reenable fastbugs, or downgrade all packages you got installed from fastbugs (but this is far from trivial).

[pieniValkoinenHattu]

Is there anyway to know which program are affected by sl-fastbugs ?

Or at least to unistall this version of zlib ?

[tux99]

QUOTE (pieniValkoinenHattu @ Apr 13 2012, 10:06 PM)

Is there anyway to know which program are affected by sl-fastbugs  ? Or at least to unistall this version of zlib ?

Like I said earlier I don't know any easy way, zlib is a dependency of rpm itself so I fear even temporarily uninstalling it (to do a downgrade) might cause rpm to stop working.

Maybe someone else has a better suggestion.

[joka]

I don't know where your zlib.86_64 package comes from but @/zlib-1.2.3-27.el6.x86_64 does not look like a valid repo name. At first you should try to downgrade the x86_64 version of zlib:

CODE

yum downgrade zlib.x86_64 1.2.3-25.el6

Otherwise yum install or update commands may not work if i386 and x86_64 packages have different versions.

According to your post (output of "yum repolist") from Apr, 12 you have not yet upgraded to SL 6.2. This may be confusing for people trying to help you and may also cause depency problems with 3rd party repos which normally require the package versions from the current SL/RHEL release.

http://www.scientificlinux.org/documentation/howto/upgrade.6x describes how to upgrade to the latest SL version.

[pieniValkoinenHattu]

Good news ! It works now ! Thank you for your help !
VLC is now installed on my linux