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I have Ubuntu 16.04 LTS version and trying to install VirtualBox.

I installed VirtualBox from command line many times and also today (05.03.2018). The installed version is 5.0.

I set-up the virtual machine. When I start it, the VirtualBox shows this message "You have Auto-capture keyboard option turned on. This will cause ...." and whole system is halted (my own laptop / host computer). I am unable to do anything after this point.

I tried to download the DEB file from VirtualBox website and install it; but it is not working either. It does not open Ubuntu Software and when I click the DEB file, nothing happens.

Can anyone please let me know that I am doing wrong?

Here is the picture of the error

Optionwiz
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Syed Kazmi
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2 Answers2

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Try using gdebi. It will resolve dependiencies for .deb files. You can install it with:

sudo apt-get install gdebi-core

Then use 

sudo gdebi packagename.deb

in the correct directory.

With that said, virtualbox has given me the same issue on Ubuntu, but I didn't install the .deb file, but instead went with an alternative:

sudo apt-get install qemu-kvm

I've used both hypervisors and other vm software and this product works very well and is supported by Ubuntu's Server team.

David Kamer
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I had an almost identical problem on both Ubuntu 14.04 and 16.04 - including the total freeze. As far as I remember, the problem was somehow related to a meltdown/spectre "fix". The solution was to follow the instructions under Debian-based Linux distributions on https://www.virtualbox.org/wiki/Linux_Downloads and eventually install virtualbox-5.2. Also see solution here: virtualbox crash on kernel 4.13.0-26.

Niclas Börlin
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