Questions tagged [serial-console]

181 questions
48
votes
10 answers

resizable serial console window?

When using the serial console of my system I always end up with $COLUMNS=80 and $LINES=24. While I can change these variables manually it is somewhat annoying to do this any time when the client side terminal window has been resized. Usually I'm…
1
vote
2 answers

How can I block a normal user from logging in via the serial console (`ttyS0`) without blocking root?

How can I block a normal user on a Ubuntu/Redhat from logging in via the serial console (ttyS0) without blocking root ? Only root needs console access, no other users. I have cleared /etc/securetty, can anyone suggest the right method ?
Namith
  • 11
1
vote
3 answers

Send raw to serial with 0xA data

I try sending to serial port someone string echo -ne '\x55\x90\x17\x01\x00' > /dev/ttyACM0, usb monitoring show me this data: ffff8c957536f540 2932377867 S Bo:2:005:3 -115 5 = 55901701 00 this working properly, all data send it in one string,…
1
vote
1 answer

unable to establish communication using grabserial

I have use teraterm in past and it works fine. I can see log messages coming from my board. Ultimately I reach the login prompt where I enter my login and password for OS running on my board. Now I am trying to do the same using grabserial. But…
gpuguy
  • 1,356