[SOLVED] Centos 6 yum update failure

Issue

trying a simple yum update logged as root via Putty gives me:

---> Package python-paramiko.noarch 0:1.12.4-1.el7 will be an update
--> Processing Dependency: python(abi) = 2.7 for package: python-paramiko-1.124-1.el7.noarch
--> Processing Conflict: libdb4-4.8.30-13.el7.x86_64 conflicts filesystem < 3
--> Finished Dependency Resolution
Error: Package: cyrus-sasl-lib-2.1.23-15.el6.x86_64 (@base)
           Requires: libdb-4.7.so()(64bit)
           Removing: db4-4.7.25-18.el6_4.x86_64 (@base)
               libdb-4.7.so()(64bit)
           Obsoleted By: libdb4-4.8.30-13.el7.x86_64 (epel)
               Not found
Error: Package: python-paramiko-1.12.4-1.el7.noarch (epel)
           Requires: python(abi) = 2.7
           Installed: python-2.6.6-52.el6.x86_64 (@updates)
               python(abi) = 2.6

 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

the expection is longer but stack can't let me put everything without write the same quantity of text... Anyways... I really can't understand why it does that conflict problem... can anybody point at least me to the right direction?

edit: if i launch yum update --skip-broken

Packages skipped because of dependency problems:
    libdb4-4.8.30-13.el7.x86_64 from epel
    libdb4-cxx-4.8.30-13.el7.x86_64 from epel
    libdb4-devel-4.8.30-13.el7.x86_64 from epel
    libdb4-utils-4.8.30-13.el7.x86_64 from epel
    python-crypto-2.6.1-1.el7.x86_64 from epel
    python-ecdsa-0.11-3.el7.noarch from epel
    python-paramiko-1.12.4-1.el7.noarch from epel

thanks

Solution

You have the CentOS 7 EPEL repositories enabled on your CentOS 6 machine. This is not going to work correctly.

Replace those with the CentOS 6 EPEL repositories and then make sure you don't accidentally have any CentOS 7 packages installed (since those will continue to cause problems like this going forward).

You will want to downgrade any packages that rpm -qa | grep \\.el7\\. finds.

Answered By - Etan Reisner

Answer Checked By - Willingham (WPSolving Volunteer)