Building a KVM Virtual Environment on Ubuntu 20.04/22.04

Mon, 20 Jul 2026 10:00:00 +0800

Building a KVM virtual environment on Ubuntu generally involves the following core steps: Hardware Check ➔ Component Installation ➔ User Rights Configuration ➔ Network Setup ➔ Creating VMs.

This guide applies to Ubuntu 20.04, 22.04, and 24.04 LTS (both Desktop and Server editions).

1. Confirm CPU Hardware Virtualization Support

First, check if your CPU supports hardware virtualization (Intel vmx or AMD svm):

egrep -c '(vmx|svm)' /proc/cpuinfo

Output > 0: Your CPU supports virtualization.
Output = 0: Enable Intel VT-x or AMD-V in your BIOS/UEFI settings (note that some cloud servers do not support nested virtualization).

Verify that your system architecture is 64-bit (required by KVM):

Virtualization on SSD AI

Building a KVM Virtual Environment on Ubuntu 20.04/22.04

1. Confirm CPU Hardware Virtualization Support