How do I remove Xen from Ubuntu?

Question

I was trying to install VM software on my Ubuntu system. Since I'm not very familiar with linux I followed a guide on the official Ubuntu site. Now I am running Ubuntu in a Xen environment, but I don't want to use Xen to make my virtual machines.

I installed Virtualbox in order to create my VM's, but Virtualbox doesn't run in a Xen environment.

I have tried googling for a way to remove Xen from my system, but I am unable to do it. This is what I've tried so far:

• Editing /boot/grub/grub.cfg set default="Xen 4.1-amd64" to set default=1 which was recommended by a tutorial. It made my laptop start up in recovery mode and I had to generate a new grub config file which put the default back to xen.
• Editing /boot/grub/menu.lst but I don't have any files called that on my system

user@BEL-8WF4XW1:~$ sudo find / -name menu.lst

user@BEL-8WF4XW1:~$

• Looking through software center, but I couldn't find anything about Xen
• The command make uninstall but I didn't use the source code.
• I also tried to install yum and do sudo yum install kernel followed by sudo yum remove xen kernel-xen libvirt but that also didn't work.

I'm quite lost to be honest. Can anyone help me to get my Ubuntu back to how it was before I tried to follow that guide?

Answer 1

I'm no expert but I've executed

sudo apt-get purge xen*

and it worked for me.

Answer 2

You can just try

sudo apt-get remove xen-hypervisor-amd64

or

dpkg -i xen-hypervisor-amd64

to see which xen files have been installed in your machine