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Asked: 2024-09-24T07:47:09+05:30 In:

I am experiencing a dependency issue while trying to install a package on my Ubuntu system. The package manager indicates that it requires “shim-signed” version 151533136590-3beb971-0ubuntu1, but my current version is 13-0ubuntu2. How can I resolve this conflict?

I’m running into a bit of a headache with my Ubuntu setup and could really use some advice. So here’s the situation: I’ve been trying to install this package that I need for my project, but every time I attempt it, the package manager throws up this frustrating dependency error.

It keeps saying that the package I’m trying to install requires “shim-signed” version 151533136590-3beb971-0ubuntu1. But here’s the kicker: my current version is way out of date at 13-0ubuntu2. It’s becoming a real blocker for me, and I’m not sure where to go from here. I’ve tried a few standard things like updating my system with `apt update` and then `apt upgrade`, but that hasn’t resolved the issue. I even tried looking for the “shim-signed” package specifically to see if I could manually install or upgrade it, but no luck there either.

I’ve also considered whether I need to add any PPAs or look into backports, but I want to be careful not to mess up my existing setup. I read somewhere that doing a distribution upgrade might solve the problem, but I’m a bit cautious because I’ve had a rough patch in the past with upgrades breaking things.

Has anyone else run into this kind of dependency mess, and if so, what did you do to get past it? I’d love to hear any insights or tips you might have. Do I need to hunt down the specific version of “shim-signed” that’s required, or is there a way to force the package I’m trying to install to work with my current setup?

I really appreciate any help you can offer. This is becoming such an annoying sticking point in my work, and I just want to get back on track. Thanks in advance for your suggestions!

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    2 Answers


    1. The dependency issue you’re encountering with “shim-signed” indicates that your current version is outdated. Since you’ve already tried updating your system with apt update and apt upgrade without resolution, you might want to try a few alternative approaches. First, ensure that your Ubuntu repositories are set correctly. You can check your sources list by running cat /etc/apt/sources.list. Make sure it includes the repositories for your current Ubuntu version. If you find that you’re missing the necessary repositories, add them and then run sudo apt update again to refresh your package list. If you identify that “shim-signed” is not available in your current repositories, look into backports or different repositories that might provide the needed version. For critical packages, consider using a PPA that’s known to maintain more recent versions.

      If updating repositories and exploring PPAs don’t work, a controlled distribution upgrade could be a viable route. Run sudo apt dist-upgrade instead of just upgrade. This command is more aggressive about resolving dependencies and can handle updated packages better. Still, do this with caution; ensure you have backups of important files. If you decide to try and install the specific version of “shim-signed,” get it from a trusted source or repository. After attempting these methods, you should have a better chance of resolving the dependency problem or discovering a more specific issue within your system. Good luck!


    2. Sounds like you’re in a bit of a bind! Dependency issues can be super frustrating, especially when you’re just trying to get things done. Here are a few things you might want to try:

      1. Update your Package Lists: You mentioned running apt update, but just to be sure, you can try running it again to make sure everything’s up to date:

        sudo apt update
      2. Upgrade your Packages: After updating, run:

        sudo apt upgrade

        This ensures all your installed packages are upgraded to the latest versions available in your repositories.

      3. Check for Held Packages: Sometimes, certain packages may be held back and can cause issues. You can check for held packages using:

        dpkg --get-selections | grep hold

        If you see any held packages, you can try unholding them using:

        sudo apt-mark unhold <package-name>
      4. Check Your Sources: Make sure your /etc/apt/sources.list is set up correctly. Sometimes adding extra repositories can help if the required package is in backports. Just be careful with PPAs; they can introduce instability.
      5. Consider a Distribution Upgrade: If you’re really stuck and you feel your current setup is too outdated, you might consider doing a distribution upgrade. Just back up your important files first! You can do this with:

        sudo apt dist-upgrade
      6. Install specific version: If you find out that the required version of “shim-signed” is available but not installed, you can try:

        sudo apt install shim-signed=151533136590-3beb971-0ubuntu1

        Just make sure that this version is available in your repositories.

      7. Last Resort – Manual Download: If all else fails, you could search for the .deb file of the required “shim-signed” version and install it manually. Just be cautious about dependencies!

      Remember, it’s always a good idea to back up important data before making major changes. Good luck, and hopefully you can get back on track soon!

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