Check CPU compatibility

kvm-ok

apt install cpu-checker

Install package

1. Minimum installation

   sudo apt-get install virt-manager ssh-askpass-gnome --no-install-recommends
   

2. Full installation

   sudo apt-get install virt-manager ssh-askpass-gnome
   

Setup bridge

1. Backup old configuration

   mv /etc/netplan/installer-config.yaml /etc/netplan/installer-config.yaml.orig
   

2. Create new networking configuration

   cat << eot >> /etc/netplan/99_networking.yaml
   network:
     version: 2
     renderer: networkd
     ethernets:
       eth0:
         dhcp4: no
   
     bridges:
       br0:
         interfaces: [eth0]
         dhcp4: no
         addresses:
          - 10.10.10.10/24
         routes:
          - to: default
            via: 10.10.10.1
         nameservers:
          search:
           - home.nt
          addresses:
           - 10.10.10.4
           - 10.10.10.1
           - 8.8.8.8
   eot
   

3. Apply new network config

   netplan apply

4. Next change network to bridge mode on the VM

Increase VM disk

Note: Using vm as name for virtual machine in this example, please adjust the VM name if needed
1. List running VMs

   virsh list

2. Shutdown running VM

   virsh shutdown vm

3. Confirm that it is powered off

   virsh list

4. Get disk path

   sudo virsh domblklist vm

5. Check existing disk size, adjust path if needed

   qemu-img info /var/lib/libvirt/images/vm.qcow2

6. Check for snapshots, you need to delete them before increasing the size

   sudo virsh snapshot-list vm

7. Delete them if found, adjust the name of VM and snapshot

   sudo virsh snapshot-delete --domain vm --snapshotname snapshot1

8. Increase size by 10GB

   qemu-img resize /var/lib/libvirt/images/vm.qcow2 +10G

9. All done, time to start VM

   virsh start vm

10. Grow VM partition
    1. SSH to the VM

       ssh user@vm

    2. List partitions

       lsblk

    3. Grow partition number (you will get from above command, adjust it if needed)

       growpart /dev/vda 2

    4. Resize filesystem

       resize2fs /dev/vda2

    5. Verify the size

       df -hT | grep /dev/vda