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…

Sven Geggus
- 831
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,…

Victor L
- 11
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