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I tried looking into this myself but I couldn't really find much about this error. The only solutions I could find didn't work for me. The first one was to use mokutil but at the point where I was supposed to run sudo mokutil --import MOK.der it gives me the error message "Failed to get file status, MOK.der" even though I did everything it told me to do. The other one was to disable secure boot and then run sudo '/sbin/vboxconfig' but even though it looked like it worked, I'm still getting the error message. I have re-enabled secure boot, so you don't have to worry about that.
Is there something else I can try or does VirtualBox not work in Linux Mint for some reason?
OK, why are you installing it from a deb file and not just from your repo?
Try that first.
How much of my comment did you read before replying?
I read that you installed a specific version months ago, but now installed it from a .deb file recently.
I'm asking why you don't just
sudo apt install virtualboxnow?I literally stated in my comment that you can't install it like that anymore. The reason why is because you get an error saying "E: Package 'virtualbox-7.0' has no installation candidate". This means that in Linux Mint, you have to install it via the deb file.
And I literally wrote in the comment above yours to install the version in the repo instead, with
sudo apt install virtalbox.NOT
sudo apt install virtualbox-7.0It's in the Ubuntu repository:
https://packages.ubuntu.com/jammy/virtualbox
Which Mint 21.2 points to according to the default sources.list:
It's version 6.1, which is better than having no working Virtualbox.
I kind of wanted to be using the newest version but I'll try the old version to see if it works.
6.1 is the newest version included in your OS. That's just how Linux works.
Downloading newer versions from somewhere else is sometimes possible, but can lead to a lot of headaches, especially with packages that interact with the kernel.
If you notice you keep running into this issue and using the newest stuff is important to you, consider switching to OpenSUSE Tumbleweed. It's the most beginner-friendly rolling release distro.
No, in addition to having a broken UI, it's still giving me the same error message.
reinstall virtualbox-dkms (from your repo), disable secure boot in BIOS and reboot.
If that doesn't work, I'm out of ideas.
I already tried that yesterday and it didn't work. It's not that big of a problem though because both Gnome Boxes and virt-manager are working fine. So I wont need VirtualBox anymore.