disable usb reset on computer boot


I have an UNO connected permanently to my computer via USB.
When computer turns on, the board resets that can not be tolerated.
How can I disable usb reset during computer boot?

I have a debian box.

I am not an expert, so I even do not know how to google my question.
I have tried "debian disable usb reset on boot" and similar...

Thanks for your help in advance,

You have to make a small hardware modification to the Uno. There are a few options. I don't remember the details but Google should find them for you. Try "disable arduino automatic reset"


The Uno contains a trace that can be cut to disable the auto-reset. The pads on either side of the trace can be soldered together to re-enable it. It's labeled "RESET-EN". You may also be able to disable the auto-reset by connecting a 110 ohm resistor from 5V to the reset line; see this forum thread for details.

I have not thought to look my problem from this direction. I am a newbie; no, an "old timer". I had electronics as a hobby 20 years ago. It is difficult to close up... Thanks a lot!