How to install Virtualizor with KVM kernel on RHEL?


  • CentOS 7.x / 8.x (Beta) or Red Hat Enterprise Linux 7 or, Ubuntu 14.04 / 16.04 / 18.04 / 20.04 / 22.04 or AlmaLinux 8.x
  • Yum / apt-get
  • Storage to create the VPS disks


  1. In all cases please remember to disable SElinux.
  2. KVM module does not support a 32-bit operating system. Please install a 64-bit OS if you want to install KVM.
  3. KVM module requires VT enabled from the BIOS to be loaded.
  4. We strongly recommend you make the bridge permanent. Guide - Making the bridge permanent
  5. If you are using Ubuntu 18.04, please go through the following guidelines for making a KVM bridge: KVM Bridge on Ubuntu 18.04
  6. If the server is from OVH then Install the original/stock kernel from the OVH panel by choosing its checkbox on the last step on the OVH panel while installing OS.

Partition Scheme

Create the following partitions on the Hardware Node:

Partition Size Description
/ 80-100 GB Root partition containing all Hardware Node operating system files, OS templates, and ISOs
SWAP 4 GB + Paging partition for the Linux operating system(Swap memory is been used by virtual servers if there is a shortage of real memory)
Storage All the remaining space is on the hard disk. This partition can be used to create either
Logical Volumes or File-Based Storage for the VPS.
NOTE for LVM: You must NOT create any Logical Volume and MOUNT it. This must be an EMPTY VOLUME GROUP.
Virtualizor will not delete any pre-existing LVs in the Volume Group. But it's recommended to have an empty Volume Group.
NOTE for File Storage: You must create and mount the folder.


Supported Storage Types
( LVM | File | Thin LVM | ZFS | ZFS Thin | ZFS Compressed | ZFS Thin Compressed | Ceph Block Device )


Open a Shell Terminal (e.g. PuTTY) and SSH to your server. Run the following commands:

wget -N
chmod 0755
./ kernel=kvm

Installation Parameters
Please give the email address correctly!

  • email - The Admin Email Address
  • kernel - In this case its KVM
  • noos - If you don't want to download the OS template for the VPS then add noos=true as a parameter
  • beta - If there is a newer version of Virtualizor available and you would like to test it then please add beta=true as a parameter
  • nested_virt - If you want to enable Nested Virtualization on your server then please add nested_virt=1 as a parameter. If you enable this, it will install a new kernel for enabling nested virtualization.
  • lvg (optional) - If you are going to use LVM for the VPS storage. The Volume Group that will be used for the VPS storage e.g. defaults to VG. It should have some OR ALL unallocated space to create LVMs for the VPS.
  • interface - You can specify the default interface that you want to set. If not provided it will be considered as eth0.
  • license - In case you are installing Virtualizor on the internal network, you will need to provide the VALID license key. To get the internal license key you will need to open a support ticket.

The installation will begin immediately. It may seem that the installation has stopped if your network speed is slow, but please let it continue.

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