RedHat error Multilib version problems found no longer a problem.

At Bobcares, we offer solutions for every query, big and small, as a part of our Server Management Service.

Let’s take a look at how our Support Team recently helped a customer resolve a commonly seen RedHat error.

What is Multilib version problems found: RedHat error?

The “Multilib version problems found” error is a common occurrence while installing a package. Let’s take a look at how the error message often present itself as seen below:

[root@localhost ~]# yum -y install gcc 
Loaded plugins: fastestmirror 
Loading mirror speeds from cached hostfile 
* base: xxxxxxxxxxxxxxxxxxxxxxxxxxxx
* epel: xxxxxxxxxxxxxxxxxxxxxxxxxxxx
* extras: xxxxxxxxxxxxxxxxxxxxxxxxxxxx
* ius: xxxxxxxxxxxxxxxxxxxxxxxxxxxx
* updates: xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Resolving Dependencies 
--> Running transaction check 
... 
--> 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 libgomp which is missing some dependency that another package requires. Yum is trying to solve this by installing an older version of libgomp 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 libgomp.otherarch ... this should give you an error message showing the root cause of the problem.
2. You have multiple architectures of libgomp installed, but yum can only see an upgrade for one of those architectures. 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 libgomp 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: libgomp-4.8.5-28.el7.i686 != libgomp-4.8.5-28.el7_5.1.x86_64 
Error: Protected multilib versions: nss-softokn-freebl-3.34.0-2.el7.i686 != nss-softokn-freebl-3.36.0-5.el7_5.x86_64 
[root@localhost ]#

Fortunately, our Support Techs have come up with a solution for this particular issue.

How to resolve “Multilib version problems found” error

Although you might come across different solutions for this issue on the internet, our Support Techs advise being wary since it may wind up doing more harm than good.

In fact, this particular solution offered by our Skilled Engineers has been successful for many of our customers. All we have to do to resolve this specific issue is downgrade the version by executing the following command for each Multilib version package:

yum downgrade package_name

For instance:

yum downgrade libgomp
yum downgrade nss-softokn-freebl

In order to ensure the above resolution is successful, we can follow either of these two options:

1. We can execute the above-mentioned command again to verify.
2. Another option would be to execute the previous command in order to check for duplicate packages as seen below:

   yum list –showduplicates package_name

   For instance:

   yum list --showduplicates libgomp
   yum list --showduplicates nss-softokn-freebl

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   Conclusion

   To sum up, the skilled Support Engineers at Bobcares demonstrated how to deal with the Multilib version problems found error.

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