[CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

John R Pierce pierce at hogranch.com
Mon Jun 23 05:33:11 UTC 2008

Les Mikesell wrote:
> Rudi Ahlers wrote:
>>>> I have a problem switch in our data centre, which is connected to a 
>>>> linux server via a serial cable. I know I can / could access the 
>>>> switch from my Windows PC back at the office, using hyperterm, but 
>>>> trying to access it using minicom just doesn't seem to work.
>>>> I have changed the comms in minincom to use /dev/tty0 & the baud 
>>>> rate to 9600, yet I can't seem to connect with minicom. Does anyone 
>>>> know how to connect to a serial device from the console?
....dissertation on kermit deleted....

his problem is that he used /dev/tty0 and not the serial port 
/dev/ttyS0    note the big S.  very important.    /dev/tty0 is some 
kinda pseudothing.    /dev/ttyS0 is the serial port known as COM1: in PC 

More information about the CentOS mailing list