[CentOS] Re: CentOS-5 Need Help With Serial Ports
Johnny Hughes
johnny at centos.org
Sat Dec 22 13:02:55 UTC 2007
James B. Byrne wrote:
> Ok, I can now configure ttyS1 with faxaddmodem, which I could not do
> before these changes, so that is progress. However, faxaddmodem reports
> that it cannot detect a modem on ttyS0. Since the modem and cable are the
> same for both, I am simply physically switching the port that the cable
> connects to in order to carry out the configuration, obviously something
> else is wrong.
>
> Does anyone have any pointers on how to get the primary serial port back
> from xen so that it can be of some use? can I configure the irq for com1
> to use ttyS2? Will that work?
>
> Seizing one of just two available serial devices for a console port
> strikes me as a dubious design choice. I venture that the vast majority
> of ES5/CentOS5 installations do not even configure xen doms other than 0
> and of those that do, only a vanishingly small percentage actually employ
> a serial console interface.
First stupid question by me :D
1. Do you really need to be running xen? (ie, are you doing a DomU
also on that machine) If not, boot the real kernel and you will be set :D
2. If you really do NEED xen then I assume you are trying to do this
serial stuff on Dom0 (where the serial port has a special purpose) ...
why not do it on a DomU instead?
Thanks,
Johnny Hughes
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