How to check the software package signatures?

[renehoj]

I think this does what you want to do.

Verifying installation

Not sure if the category is good, feel free to reassign where it belongs. Maintaining OEM disk image, which is standard ISO installation + additional packages + updates + tweaks to provide up to date templates, is not an easy task. Doing so comes with a lot of valid questions from end users on integrity, and providing proof/auditability is also not so easy, but interesting in itself and a filed of needed improvements. I’m posting here to try to get an understanding of what touches what after …