Are you trying to this on a specific hypervisor (KVM, ESXi)?
It lacks many of the modern EVPN, VXLAN, and advanced telemetry features found in more recent Junos releases. Usage Recommendation vmx.jinstall.vmx.14.1r1.10.domestic 1
This version dates back to approximately 2014/2015 , making it a very early release of the vMX platform. Package Type: jinstall (Junos installation package). Are you trying to this on a specific hypervisor (KVM, ESXi)