GNS3 and GNS3 VM - heathdbrown/research GitHub Wiki
GNS3 VM
- Error received when using VirtualBox
KVM acceleration cannot be used (/dev/kvm doesn't exist). You can turn off KVM support in the gns3_server.conf by adding enable_kvm = false to the [Qemu] section
- Attempted fix by following the GNS3 troubleshooting guide and adding the following configuration, did not work.
nano ~/.config/GNS3/gns_server.conf
[Qemu]
enable_kvm = false
- Researching further found that if you have WSL installed you might not be able to utilize the 'nested' functions in Virtualbox due to Hyper-V.
- Alternative is to use the Hyper-V for the GNS3 VM
- After switching now getting the following issue when trying to use Hyper-V

Error while listing vms: GNS3VM: The Windows account running GNS3 does not have the required permissions for Hyper-V