Disable Modular Filtering in Kickstart Repos

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Hello,

I'm running into an issue while trying to create a Kickstart ISO with custom content. As described by the MySQL documentation[0], the AppStream mysql module prevents installation of commercial MySQL RPMs and must be disabled. Without disabling it, Kickstart fails with an error like this:

  • package mysql-commercial-server-8.0.19-1.1.el8.x86_64 is filtered out by modular filtering

    I want this process to be automated through Kickstart so the resulting system has the correct version of MySQL installed. The only way I can make it work is by extracting the module metadata from the AppStream repo, deleting the mysql module, and then repacking it. It's a very ugly solution and I'm looking for something a little cleaner. Here's what I've tried so far:

  • When specifying the custom repo in the Kickstart file, add --excludepkgs=@mysql to try and disable the module

  • In the Kickstart %pre script, disable the module manually like so:
    dnf --repofrompath AppStream,/run/install/repo/AppStream --nogpgcheck module disable -y mysql

Is there a way to do this through Kickstart?

[0] - https://dev.mysql.com/doc/mysql-yum-repo-quick-guide/en/

AS
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Responses

RD Expert 832 points
31 August 2021 2:21 AM

If the "Kickstart ISO with custom content" includes a repository for the commercial MySQL RPMs, then modules can be disabled in %post:

%post

# GPG key
/usr/bin/rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

# presumes install ISO is mounted at '/media/dvd'
/usr/bin/dnf -y --refresh --disablerepo='*' \
  --repofrompath ks-baseos,file:///media/dvd/BaseOS \
  --repofrompath ks-appstream,file:///media/dvd/AppStream \
  --repofrompath ks-codeready,file:///media/dvd/CodeReady \
  --enablerepo='ks-*' \
  module disable mysql

%end

A similar dnf command, with the commercial MySQL repository enabled, can then be used to attempt installation. (I haven't tested this, so I'm not certain it will succeed.)

AS Community Member 35 points
2 October 2021 7:02 PM

So after digging around I found out that Kickstart has built-in support for disabling a module with --disable. For some reason it's documented in the official Kickstart docs and not the RedHat version.

module --name=mysql --disable