[Fedora-xen] FC5 - serial console - no characters received by host?

[Tony Clark]

Hi there,

I've been working with the FC5 Xen stuff for the past few weeks after  
trawling many options for building a redundant server farm; It's a  
great build and congratulations to all who put this together.

I have a little issue with my serial console which is putting hte  
brakes on deployment though: I want to use the serial console on com2  
(the default on the Intel mainboard I use) to give me the grub  
console, Xen console and Linux consoles.  I've had this working fine  
on previous releases from SuSE and others and on the current hardware.

When happens at the moment is that the machine boots, gives me the  
grub menu, where I can choose my boot system (so it's hearing my  
keystrokes) but once it proceeds into the Xen and ultimately Linux,  
it doesn't want to hear keystrokes from me any more: I can't CTRL-A  
(x3) and get the Xen console, nor the linux console which is  
configured in /etc/inittab.  I see the boot messages go past and get  
a login prompt, but no keystrokes get through or can control the  
machine.

It's making it tricky to send the box to co-lo as I can't get serial  
control if I take down the network, or Hypervisor control to reboot  
Dom0.

My rpms are:

kernel-xen0-2.6.16-1.2080_FC5
xen-3.0.1-4

and my grub.conf is:

default=0
timeout=5
#splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
#
serial --unit=1 --speed=9600 --word=8 --parity=no --stop=1
terminal --timeout=10 serial console
#
title Fedora Core (2.6.16-1.2080_FC5xen0)
         root (hd0,0)
         kernel /xen.gz-2.6.16-1.2080_FC5 dom0_mem=384000  
com2=9600,8n1 console=com2,vga sync_console
         module /vmlinuz-2.6.16-1.2080_FC5xen0 ro root=/dev/ 
VolGroup00/LogVol00 rhgb selinux=0
         module /initrd-2.6.16-1.2080_FC5xen0.img

I'd appreciate any guidance on silly things I may have done here; I'm  
banging my head on this one.

Many thanks,

Tony


tony clark
director - tony.clark at rsp.com.au
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