I have a xen 3.3.0 installed from source code. Dom0 is based on CentOS 5.2. I did the following to enable the serial port in a ubuntu HVM guest. 1. start xencosoled as root 2. enable serial=''pty'' in the configure file 3. enable output to serial in the guest by adding console=ttyS0 to the grub Then I started the guest with xm create -c usrv. The vnc display is OK. but there is no output in the serial. I also tried several combination of serial='''', such as serial=''/dev/ttyS0'', serial=''/dev/ptya1''... None of them works. Thanks This is the configure file: #---------------------------------------------------------------------- import os, re arch = os.uname()[4] if re.search(''64'', arch): arch_libdir = ''lib64'' else: arch_libdir = ''lib'' kernel = "/usr/lib/xen/boot/hvmloader" builder=''hvm'' memory = 256 name = "usrv" vif = [ ''mac=00:16:3e:00:00:10, bridge=eth0'' ] disk = [ ''phy:/dev/vg_guest/lv_userver,hda,w'' ] device_model = ''/usr/'' + arch_libdir + ''/xen/bin/qemu-dm'' boot="cda" sdl=0 opengl=0 vnc=1 vncviewer=1 vncpasswd='''' stdvga=0 serial=''pty'' _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users