yum update returns error "Multilib version problems found."


Well-Known Member
Oct 22, 2010
Hello, after i executed "yum update" on my WHM server, it started working and then stopped with following lines at the end:

--> Finished Dependency Resolution
--> Running transaction check
---> Package kernel-devel.x86_64 0:2.6.32-504.8.1.el6 will be erased
--> Finished Dependency Resolution
Error:  Multilib version problems found. This often means that the root
       cause is something else and multilib version checking is just
       pointing out that there is a problem. Eg.:

         1. You have an upgrade for libffi which is missing some
            dependency that another package requires. Yum is trying to
            solve this by installing an older version of libffi of the
            different architecture. If you exclude the bad architecture
            yum will tell you what the root cause is (which package
            requires what). You can try redoing the upgrade with
            --exclude libffi.otherarch ... this should give you an error
            message showing the root cause of the problem.

         2. You have multiple architectures of libffi installed, but
            yum can only see an upgrade for one of those arcitectures.
            If you don't want/need both architectures anymore then you
            can remove the one with the missing update and everything
            will work.

         3. You have duplicate versions of libffi installed already.
            You can use "yum check" to get yum show these errors.

       ...you can also use --setopt=protected_multilib=false to remove
       this checking, however this is almost never the correct thing to
       do as something else is very likely to go wrong (often causing
       much more problems).

       Protected multilib versions: libffi-3.0.5-3.2.el6.i686 != libffi-3.0.9-1.el5.rf.x86_64
can i fix this anyhow? can this break WHM updating functions?


Well-Known Member
Oct 22, 2010
Thanks, i checked that thread, but im not able to solve it.

the "yum update" error is:
Protected multilib versions: libffi-3.0.5-3.2.el6.i686 != libffi-3.0.9-1.el5.rf.x86_64

My CentOS is 6.6, x86_64 . Does it mean i have CentOS 5 package installed and that is issue?

# rpm -qa | grep libffi

# yum list libffi
Installed Packages
libffi.x86_64 3.0.9-1.el5.rf @rpmforge
Available Packages
libffi.i686 3.0.5-3.2.el6 base

# yum repolist enabled
base CentOS-6 - Base 6513+62
draios Draios 11
*epel Extra Packages for Enterprise Linux 6 - x86_64 11069+695
extras CentOS-6 - Extras 43
updates CentOS-6 - Updates 379+48
vz-base vz-base 3
vz-updates vz-updates

how can i please install/reinstall it good so yum update works?

i found nothing suspicious in /etc/yum.repos.d

someone adviced:
#rpm -e --nodeps libffi

but not sure if its safe
Last edited:


Well-Known Member
Oct 22, 2010
I tried that command:
#rpm -e --nodeps libffi
then this one:
#yum install libffi-devel

and it worked to install el6 version

# yum update
than was not interupted and wanting me to upgrade 187 packages and install 13
here: http://pastebin.com/ZViBywTa

please can anyone advice is i should proceed with such update safelly?

PS: might be good if WHM notiffy me there is an issue with updating of server software


Staff member
Apr 11, 2011
Hello :)

You may want to consider removing the RPMForge YUM repo if you are not using it for a specific purpose. It's not utilized by default and it's possible that it's the source of this error message. Otherwise, you can proceed with updating the packages as advised in the output of the "yum update" command.

Thank you.