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xen-users
Re: [Xen-users] Serial port problem
Ian Pratt wrote:
I am using Xen in FC4. I can't use my serial port in dom0.
I didn't use serial port in Xen's boot command. I wonder what
can be wrong. It can't be hardware problem. I can use serial
port when booting without Xen. And I tried the 2.6.12 kernel
and Xen3. It is the same.
Please post the boot messages. 'xm dmesg' and 'dmesg' should be OK.
Why do you want to drive the serial port directly from dom0 rather than
via Xen? Are you connecting a modem or some other gadget?
Are you sure your kernel has the appropriate uart driver? Is the port
detected in the boot messages? Does xencons appear to be grabbing ttyS0
regardless?
(You could try xencons=off on the kernel command line)
I got it...
Sorry I didn't understand in the beginning. (I don't have serial
driver in dom0 Linux kernel and the boot setting is not correct)
Now it works prefectly after I install serial driver and set the
xencons=off at module line.
But I still don't know how to use ttyS0 via xen. In xen boot command
line I have to set the baud rate and DSP. What if I need to change it
when I use it in XenLinux ? (Use ttyS0 to talk to settop box, robots, etc).
Kun
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