Installing Softaculous Virtualizor for Linux-KVM is very simple.
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 guide 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.
|/||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 on the hard disk.|| This partition can be used to create either Logical Volumes or File-Based Storage for the VPS (DomUs). |
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.
- email - The Admin Email Address
- kernel - In this case its KVM
- noos - If you don't want to download the DomU operating system for the DomU then please 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 DomU (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. You will see something like this :
----------------------------------------------- Welcome to Softaculous Virtualizor Installer ----------------------------------------------- 1) Installing Libraries and Dependencies 2) Installing PHP, MySQL and Web Server 3) Downloading and Installing Virtualizor - Configuring Virtualizor - Fetching License - Setting up the CRON Job - Importing Database - Getting List of OS templates - Generating the SSL Certificates 4) Installing the Virtualization Kernel - kvm - You have not defined any storage ! Please add a Storage once you visit the Admin Panel. KVM Module has been installed ------------------------------------- Installation Completed ------------------------------------- Congratulations, Virtualizor has been successfully installed API KEY : havkrq0b8skwiaxgtpxh3rehxo9lhalu API Password : j1zpjzzxzhbnuavxgu6nijbslan2wxj3 You can login to the Virtualizor Admin Panel using your ROOT details at the following URL : https://━━.━━.━━.━━:4085/ OR http://━━.━━.━━.━━:4084/ You will need to reboot this machine to load the correct kernel
After the installation is completed you will be asked to reboot.
You will need to reboot this machine to load the correct kernel Do you want to reboot now ? [y/N] ┃
Virtualizor uses ports from 4081 - 4085. If there is any firewall restricting this, you will need to allow these ports.
For RHEL & CentOS < 7
iptables -I INPUT 1 -p tcp -m tcp --dport 4081:4085 -j ACCEPT iptables -I INPUT 2 -p tcp -m tcp --dport 5900:6000 -j ACCEPT
For RHEL & CentOS 7+
firewall-cmd --zone=public --permanent --add-port=4081-4085/tcp firewall-cmd --zone=public --permanent --add-port=5900-6000/tcp firewall-cmd --reload
Fill in the details and define the storage.
By default, eth0 will be assumed as the Network Interface. To tell the Virtualizor to use anything other than Network Interface, You need to set it
You can change these settings any time from the Virtualizor Admin
Panel -> Configuration -> Slave Settings. The following is a
screenshot of the available settings :
Virtualizor will create a viifbr0 bridge.
viifbr0 detects the IP, Netmask, and GATEWAY from :
Hence if you change the above file, you will need to restart the Virtualizor network :
root> service virtnetwork restart
Start Command :
root> service virtnetwork start
Stop Command :
root> service virtnetwork stop
Can't open http://IP-Address:4084
Please check if your iptables firewall is running You can disable it with the following command if even after allowing ports, the panel is not working :
root> service iptables stop
For CentOS 7 :
root> systemctl stop firewalld
Disk resize issue on Ubuntu 16 and Ubuntu 18
mv /sbin/sfdisk /sbin/sfdisk_new wget -O /sbin/sfdisk http://files.virtualizor.com/utility/sfdisk chmod 755 /sbin/sfdisk
Centos 8 issues
If you are facing issues with VNC on CentOS 8 server (even it being the Master-only panel) then make sure python is installed on your server :
root> yum list installed |grep python*
If it's not present, then try to install it
root> yum install python2
And if you do not see anything for
Then you can symlink it and then check for vnc
root> ln -s /usr/bin/python2 /usr/bin/python