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Is there a way to check if minimal Debian 11 was installed after the installation was completed?

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I want to know if standard system utilities or SSH server was selected during installation. The server is headless so obviously There are no Desktop environments.

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  • How do you count installing only standard system utilities at setup and then installing SSH server after the system has been running a while. We also have headless systems that run a desktop environment for users to remote desktop into. Your assumption is good for your environment but is not universal.
    – doneal24
    Sep 30, 2022 at 17:36

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You can check the debconf values stored in /var/log/installer/cdebconf. This may depend on the installer, but works for me with a debian-installer based installer.

apt-get -y install debconf-utils
debconf-get-selections --installer | grep -E 'pkgsel|tasksel'

Based on the installation guide section on package selection the debconf item that matches directly to your screenshot is tasksel/first. However, other items (like pkgsel/include) can also install software during the installation.

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  • I am getting an error debconf: DbDriver "di_questions": could not open when I execute sudo debconf-get-selections --installer | grep -E 'pkgsel|tasksel'
    – Cruise5
    Oct 2, 2022 at 18:17
  • @Cruise5 does the server have the directory /var/log/installer/cdebconf? Googling your error suggests it is likely missing. Without that directory I do not know how to get the installation settings.
    – Andrew Lowther
    Oct 3, 2022 at 22:13
  • No such directory. Can't we look at packages that are part of standard system utilites only and see if they are installed ? This is for a newly created server and not where packages where manually installed.
    – Cruise5
    Oct 4, 2022 at 17:15
  • I think you just want tasksel --list-task. It will list the available "tasks" with either u (uninstalled) or i (installed).
    – Andrew Lowther
    Oct 4, 2022 at 23:25

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