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I'm relatively new to Linux. I tried to install Virtualbox on Lubuntu 18.10. I had never used it before.

During the installation, a prompt told me that I had to alter my Secure Boot. I wasn't anticipating that and tried to discontinue the installation so I could read more about what that meant before moving forward.

I tried to uninstall Virtualbox using the Software application but it would not give me that option. I tried to use the Synaptic Package Manage to uninstall, but it prompted me to run sudo dpkg --configure -a in terminal. That did nothing for an indeterminate amount of time. I had to close out terminal entirely to write another command, and then I uninstalled Virtualbox using sudo apt-get --purge remove virtualbox and dpkg --list seemed to indicate this was successful.

But there still appears to be a residual problem that I can't discontinue. Synaptic still gives me the same prompt if I try to use it. So does dist-upgrade command when I tried it among other things. If I try sudo dpkg --configure -a now I still get a process that appears to freeze in terminal. I get this:

And then nothing more seems to happen. Task manager seems to indicate nothing is happening. I saw that this was addressed once before on this forum but those solutions did not seem to work for me in this case.

David Foerster
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Absurdistan
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1 Answers1

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The above combination was what worked for me. 

sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/apt/lists/lock 
sudo rm /var/cache/apt/archives/lock 
cd /var/lib/dpkg/updates sudo rm *
sudo apt-get remove virtualbox-dkms

All credit goes to those that commented above.

Tom Ostlund
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