GNS3 and GNS3 VM

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Heath Brown edited this page Nov 26, 2023 · 1 revision

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

Fix run GNS3 as administrator: https://www.gns3.com/community/support/hyper-v-error-while-listing-vms-do-not-have-the-required-permissons-for-hyper-v
Ran into disk space issue after fixing the administrator problem and had to move my machines and disks to my secondary partition (d:)