On Fri, Jul 16, 2010 at 08:35:36AM -0700, Gordon Messmer wrote:
On 07/16/2010 05:06 AM, Theo Band wrote:
It works for para-virtualized guests (with xen kernel) not for fully-virtualized ones.
For fully-virtualized guests, make sure the guest definition contains:
<serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console>
If you add this, you'll need to redefine the guest, then shut it down completely ("poweroff" the guest, not reboot).
# virsh define /etc/libvirt/qemu/guest.xml
Once a serial console is defined in the guest, set up grub. Edit /boot/grub/grub.conf and replace the timeout, splashimage, and hiddenmenu lines with:
timeout=5 serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 terminal --timeout=5 serial console
Make sure all of the "kernel" lines contain a serial console arg:
kernel /boot/vmlinuz-... ro root=LABEL=/ console=ttyS0,115200And finally make sure that /etc/inittab starts a getty on the serial console:
s0:2345:respawn:/sbin/agetty -L 115200 ttyS0 vt100
The last three are the same steps you'd take to set up a machine with a physical serial console.
Also there's an entry about setting up the "xm console" serial console for Xen HVM guests at: http://wiki.xensource.com/xenwiki/XenCommonProblems
-- Pasi