[CentOS] I can't connect to /dev/ttyS0

Keith Roberts keith at karsites.net
Mon Sep 26 13:29:22 UTC 2011


On Sun, 25 Sep 2011, Michel Donais wrote:

> To: CentOS mailing list <centos at centos.org>
> From: Michel Donais <donais at telupton.com>
> Subject: Re: [CentOS] I can't connect to /dev/ttyS0
> 
>> You first need to double-check that /dev/ttyS0 is actually
>> the correct serial COM port you have the modem connected to.
>
>> Please look under System->Hardware and then click the 16550A-compatible
>> COM port in the LH pane.
>
>> Then in the RH pane click on 'Advanced', and find the serial.device string
>> or linux.device_file.
>
>> This will be something like:
>> linux.device_file  strlist /dev/ttySx where x == 0|1|2|3 serial.device
>> strlist /dev/ttySx where x == 0|1|2|3
>
>> Please can you share with us what the reason was for the
>> problem, so others with similar problems can be enlighted,
>> including myself?
>
> Well it's a bit ennoying.
> I've done all the given check list and got nearly no answer for a solution.
> So I decided to open the box to see that the serial device connector was
> partly unplug from the mother board; so it was the source of my problem.
>
> I put it back in palce and it was done.

Ah - Thanks for that Michel - very informative. That's 
probably one of the last tings I would have taken a look at.

So it was actually a hardware problem - not a software one.

I'm Very pleased you were able to identify and fix the 
problem :)

Kind Regards,

Keith Roberts

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