:
qemu-img create -f qcow2 -b /path/to/Vqfx-20.2r1.10-re-qemu.qcow2 leaf2.qcow2 Vqfx-20.2r1.10-re-qemu.qcow2
The vqfx-20.2R1.10-re-qemu.qcow2 file contains the RE portion. Without a connected PFE image (often named similarly with a -pfe- suffix), the RE will boot but will not display active network interfaces (e.g., xe- ports). Technical Specifications Juniper vQFX on GNS3 - Brezular's Blog : qemu-img create -f qcow2 -b /path/to/Vqfx-20
qemu-system-x86_64 -boot d -cdrom Vqfx-20.2r1.10-re-qemu.qcow2 Vqfx-20.2r1.10-re-qemu.qcow2