I have a rather large batch of SRX300 (>100) which needs a manual Junos upgrade before they go out.
What I need to accomplish is;
1. Upgrade Junos to 15.1X49-D110 or D120
2. make snapshot of newly updated Junos to alternate partition
3. Reset to factory default config
The SRX300's are delivered with 15.1X49-D70.
First task is easy to accomplish with either ZTP or USB autoinstallation but this will not handle task 2 and 3. Especially 3 is difficult as I cannot put junos-config.conf on the USB drive as the factory default configuration cannot commit due to missing root authentication.
Right now we are talking about unpacking batches of 15-20 boxes with same amount of USB drives and then a serial console server to access multiple devices at the same time.
Any inputs on this task can be optimized will be more than welcome.