Customizing the "OS" name in coreos-assembler

Ask Fedora
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1

Fedora CoreOS shows several messages mentioning “Fedora CoreOS [build-name]”, like “Welcome to Fedora CoreOS 38…20230605…dev.0!”, as well as outputting the version again upon user login.

Is it possible to customize the OS name and if yes, where is the right place to do so? I already tried customizing the (undocumented) rojig field in my manifest.yaml, but this didn’t change the message contents.

Can someone point me in the right direction?

2

The “quick hack” option is to change the content of /etc/os-release during post-process scripts.

The more involved (in that you’ll have to update this regularly) is to provide and use an alternative for the fedora-release-identity-coreos RPM package.

3

Thank you!