CentOS

** Found 4 pre-existing rpmdb problem(s), 'yum check' output follows:
coreutils-libs-8.4-47.el6.x86_64 is a duplicate with coreutils-libs-8.4-46.el6.x86_64
coreutils-libs-8.4-47.el6.x86_64 has missing requires of coreutils = ('0', '8.4', '47.el6')
kernel-firmware-2.6.32-696.23.1.el6.noarch is a duplicate with kernel-firmware-2.6.32-696.20.1.el6.noarch
kernel-firmware-2.6.32-754.11.1.el6.noarch is a duplicate with kernel-firmware-2.6.32-696.23.1.el6.noarch

I've done the usual cleanup and yum-complete-transaction --skip-broken etc but am getting nowhere. I think I need to manually delete these duplicates but am not 100% on how to do that correctly.

Do You use CentOS 7 or CentOS 6 ?
Repo el6 belong for CentOS 6.

Sorry this server is Centos 6 my mistake, I was updating a lot this morning.

Moved to the correct forum.

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https://wiki.centos.org/HowTos/Cleaning ... tePackages is intended for CentOS 7 which has a package-cleanup parameter that is new in 7.5.

On CentOS 6 you will need to run package-cleanup --dupes to get a list of the duplicates then manually work out which of the duplicate packages is the newest and use rpm -e --nodeps --justdb $package to remove each of the newest duplicates. Once the newer ones are gone, re-run yum update to make sure that the older duplicate is re-updated to the newer version.

If you remove the older one then you might have a package database that says the newer one is installed but the files it owns might not be up to date.

Thanks all sorted, I only had to remove coreutils-libs-8.4-47.el6.x86_64 and update.