Unlike standard IOS, IOS XR has distinct modes.
Create a folder named xrv-k9-6.1.3 (or similar) in /opt/unetlab/addons/qemu/ . Rename the file to hda.qcow2 once inside that directory. iosxrvk9demo613qcow2
You can use the official appliance template to import the image. It generally performs best when running on the GNS3 VM . Unlike standard IOS, IOS XR has distinct modes