Learn how to a build a cloud-first strategyRegister Now


SUSE 9.1 and serial port problem

Posted on 2004-11-24
Medium Priority
Last Modified: 2013-12-15
I have installed SuSE 9.1 on a HP Netserver, and applied patches using on-line update.

I try to connect to a modem, but get no reply from modem. Have tried several types of serial devices, and my comm-package ("Modem is not ready") as well as minicom (no response).

Server is a rack, no keyboard or monitor when booting. I have tried exchanging the hardware, same result - must be OS-related.

From boot.msg:
<6>Serial: 8250/16550 driver $Revision: 1.90 $ 48 ports, IRQ sharing enabled
<4>ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

Boot logging started on /dev/tty1(/dev/console) at Wed Nov 24 15:25:31 2004

<notice>run boot scripts (setserial boot.proc)
Configuring serial ports...
/dev/ttyS0 at 0x03f8 (irq = 4) is a 16550A
Configured serial ports
done<notice>exit status of (setserial boot.proc) is (0 0)  

Using cat /proc/interrupts I get no lines with "serial", if I start the comm-program, I get:

         10          XT-PIC  serial

There seems to be no other leg-file entries related to this.

I have had the system running using same modem and software with an old SuSE 8, so I may be missing some banal change in SuSE 9.x

Question by:torstena
  • 2
  • 2
LVL 38

Expert Comment

ID: 12670670
> I try to connect to a modem, but get no reply from modem
So it is an external modem.
What brand/model it is? Did you install driver install for it?
I think you need to install the driver first.


Author Comment

ID: 12670817
Yes, I try to connect to an external modem.

Or any serial devide for that matter. When my modem did not respond to "AT"-command I tried to connect to other devices (incl. a PC with terminal program). I simply cannot get anything out on the serial port. I should not need to worry about drivers until I can at least get simple communication of "AT" type functioning.


Author Comment

ID: 12704559
The problem have been resolved.

The problem was caused by the default setting in the server BIOS of COM1 being a Management Port.

SuSE 8.2 did not detect this, and therefore allowed the port to be used as a standard COM port.

SuSE 9.x detects the special state of the port, and thus do not allow it to be used as a COM port. The setserial utility detects the port correctly but access is not allowed (no errormessages given). Once the port was set to standard serial port in the BIOS (press F2 wheen booting) it works.

LVL 38

Expert Comment

ID: 12706618

   Glad to know your problem resolved.
You can ask for the points refund.



Accepted Solution

Lunchy earned 0 total points
ID: 12709809
Closed, 250 points refunded.
Friendly Neighbourhood Community Support Admin

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

SSH (Secure Shell) - Tips and Tricks As you all know SSH(Secure Shell) is a network protocol, which we use to access/transfer files securely between two networked devices. SSH was actually designed as a replacement for insecure protocols that sen…
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.
Suggested Courses
Course of the Month20 days, 20 hours left to enroll

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question