This is somewhat of an impossibility, right? Well, not really. Although not technically supported by Juniper, we are able to go above the recommended 1GB Compact Flash size on J-series routers (at least J4350s).
This was performed on lab equipment, not production equipment. I wouldn’t advise doing anything that would violate any manufacturer’s support agreement on production equipment. Use this at your own risk – your mileage may vary, especially as it’s not following Juniper’s recommendations. Phew – disclaimer finished – now let’s move on…