hi, I have tried this for several times with different configuration on xen-unstable branch (rev. 17773). The following is my grub.conf file. serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 terminal --timeout=5 serial console title Xen 3.3 serial console (unstable) root (hd0,0) kernel /xen-3.3.gz com1=115200,8n1 console=com1,vga sync_console module /vmlinuz-2.6.18.8-xen ro console=tty console=ttyS0,115200n8 module /initrd-2.6.18.8-xen.img With this configuration, I can get a login prompt when Dom0 finishes booting. I think it is because the following command in /etc/inittab. s0:2345:respawn:/sbin/agetty -L 115200 ttyS0 vt100 // At least it verifies that the serial port/cable is working fine. If I put the xencons=ttyS0 onto the command line, I even can''t get a login prompt when Dom0 is up. Any suggestions? This is on x86_64 machine. Thanks, Neo -- I would remember that if researchers were not ambitious probably today we haven''t the technology we are using! _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel