How to exclude a package from a specific repository only in yum?

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This post https://www.systutorials.com/1661/making-dnf-yum-not-update-certain-packages/ introduces how to exclude a package from yum.

But is it possible to exclude a package from a specific repository only?

For example, a repository R1 I am using contains an updated version of gdb while I don’t want to use the gdb from it as I trust the version (although older) from the official OS repository. How to make yum update not update gdb from the repository R1?

exclude=... can also be used in each repository’s .repo file under /etc/yum.repos.d.

For the above example, you can add

exclude=gdb

to

/etc/yum.repos.d/R1.repo

under the enabled (enabled=1) sections.

Example:

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
exclude=gdb

4 comments

  1. This doesn’t work for me in CentOS 7.4 All the entries in the repo file are key value pairs : . There aren’t any “=” signs in the repo files.

      1. The system is on my employers network , which I won’t be connected to for a few days. I have a CentOS 7.7 VM at home and repeated the steps to exclude a package ( this case postgresql ) and it worked as expected by excluding postgresql from base and updates packages ( see .repo file contents at the bottom of this post ) .

        I also noted that my VM’s CentOS-Base.repo file had = formatting instead of my employer’s system’s : format .

        My employer has a lot of customer internal repos and automation around configuration management. What might be happened is the .repo files yum.repos.d might either not be used, or if used, overridden by files in another location. I’ll check the yum.confg for the reposdir ( just learned that exists! ) parameter to see of that it the case.

        My ( not my employers ) CentOS-Base.repo file contents –
        [base]
        name=CentOS-$releasever – Base
        mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
        #baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
        gpgcheck=1
        gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
        exclude=postgresql*

        #released updates
        [updates]
        name=CentOS-$releasever – Updates
        mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
        #baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
        gpgcheck=1
        gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
        exclude=postgresql*

        #additional packages that may be useful
        [extras]
        name=CentOS-$releasever – Extras
        mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
        #baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
        gpgcheck=1
        gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

        #additional packages that extend functionality of existing packages
        [centosplus]
        name=CentOS-$releasever – Plus
        mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
        #baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
        gpgcheck=1
        enabled=0
        gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

        1. The parser messed up my post because I used greater than less than characters. Here it is again – My repo format: (key)=(value) . My employers repo format (key):(value) .

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