[CentOS] Trouble getting all my com-ports (ttyS*)

Christopher Thorjussen Christopher.Thorjussen at carrot.no
Mon Dec 10 08:40:35 UTC 2007


>Christopher Thorjussen wrote:
>> I just installed CentOS 5.1 on a Dell Vostro 200 (Intel G33) which
has a
>> Sunix PCI-Express (x1) 8-port RS-232 card installed. For me it looks
>> like only 4 ports are recognized, but I'm not sure if it's even
working
>> with those 4.
>
><snip>
>
>> How can I get the other 4 enabled?
>
>Pass "8250.nr_uarts=8" to the kernel to tell it to create more than the
>default 4 serial ports (add to /etc/grub/menu.lst and reboot). NOTE:
the
>maximum number of UARTs supported by the CentOS 5 kernel (as of
>2.6.18-8.1.8.el5) seems to be 32.
>
>Cheers,
>Michael

That worked great! Thanks a bunch :)

Cheers,
Christopher



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