Console access - how to login?

Product support balenaOS
1

Hi,

I need a way to access the Pi thru the GPIO serial pins. Computer->[usb232 adapter]->Raspberry

I’m connected and have some output in the terminal window, how do I reach the login prompt?

consolaccess
consolaccess931×714 21.1 KB

Thanks!
Mikael

3

Hello Mikael,

Are you running this device in Development or Production mode? Shell access via serial port is disabled in Production mode devices.

Regards,
Scott

5

Production mode.

I’m using a Raspberry model 3 A for my application, a LoRaWAN gateway with cellular connection only. From time to time it looses the connection and since I don’t have wifi/ethernet capabillities I’m quite blind and it’s hard to troubleshoot.

Not a problem now, when I can connect a screen and keyboard to it. But it will be a problem when I move it to the rooftop.

Is’t possible to enable shell access by adding a parameter? Or am I referred to use develepment version?

Thanks.
Mikael

6

Mikael,

Production mode cannot have the serial terminal enabled unfortunately, however I cannot recommend that you deploy a device with a Development image due to the fact that the console would be open without a password; so anyone could just hook up a terminal to the serial port or SSH on port 22222 and get root access.

9

hey,

So while we don’t support this in the images directly, you’re welcome to enable it yourself if you need to.

We have a script which used to do this; I cannot say for certain if it works still as I haven’t tried it personally. https://github.com/balena-os/serial-it/blob/master/serial-it.sh

It will enable the Getty and disable the root password; perhaps you could tweak that last part to set a password of your choice?

11

I will look into that serial-it -thing.

Thanks & regards,
Mikael