Undeclared Dependencies in Fedora Toolbox

I have another bug report with the RPM installer, as well as a question.

First, the bug report: I have a laptop that I recently installed Fedora Silverblue on. As a summary, Silverblue uses an immutable root filesystem and applications are installed either through Flatpak (preferred) or through toolbox, a command-line tool to create temporary-ish containers that you can install software in using DNF. GUI apps can be installed in toolbox and will work.

I was able to follow the directions for installing on Fedora, just in a toolbox container, and the package successfully installed. The app itself failed to run, however, due to missing dependencies. These are the packages I had to install, in order of when their "missing shared library" error appeared:

  1. nss
  2. atk
  3. at-spi2-atk
  4. libX11-xcb
  5. gdk-pixbuf2
  6. gtk3
  7. libdrm
  8. gdm

After installing gdm, I was able to load the application.

Now the question: why did I need to install GDM, the Gnome Display Manager? Seems like an odd thing for an application to require. As a note, the specific error was that libgdm.so.X was missing, so it's not like it was pulled in by gtk3.

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OS Version: Fedora Silverblue
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Referrer: forum-search:Fedora Toolbox


  • BlakeBlake

    Team Member

    Howdy, @Shadow53 🤠

    Thanks for bringing this to our attention. I've opened an issue up internally with our development team to look into the declared requirements on the RPM.

  • No problem! I think it's something common to custom RPMs, as at least Mullvad has a similar issue. I haven't tried any non-Fedora RPMs beyond that yet.

    I am still curious about that dependency on the display manager, though...

  • Dayton_agDayton_ag

    Team Member

    Hey @Shadow53, we're taking a deeper look into this issue - once we have some answers we'll return with an update. :smile::+1:

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