<memoryBacking> <hugepages/> </memoryBacking> Cause : Wrong bus type. vQFX expects virtio-blk , not sata . Fix : Ensure <target dev='vda' bus='virtio'/> . 4. “vqfx202r110reqemuqcow2 work” – Specific Error: Missing vqfx-sys-kernel-junos Cause : Incomplete image build (user overlay missing). Fix : Re-extract from official .tgz distribution:
cli configure set interfaces vme unit 0 family inet address 192.168.1.10/24 set routing-options static route 0.0.0.0/0 next-hop 192.168.1.1 commit The vQFX splits control (RE) and forwarding (PFE). Check: vqfx202r110reqemuqcow2 work
echo 1024 > /proc/sys/vm/nr_hugepages And add to VM XML: target dev='vda' bus='virtio'/>