Hi, I tried to use ttyS0 in dom0 for a serial interface UPS, but apcupsd complains that it can't talk to ttyS0. I look through /var/log/messages, and sure enough, xen is using it: Jul 3 09:45:22 xenmaster kernel: Xen virtual console successfully installed as ttyS0 Can that be turned off, so that ttyS0 isn't used by Xen? I tried to do this several months ago, but back then I was told Fedora was working towards fixing the serial port access problems. Regards, Ranbir -- Kanwar Ranbir Sandhu Linux 2.6.20-1.2962.fc6 i686 GNU/Linux 08:15:36 up 5 days, 20:58, 3 users, load average: 0.35, 0.18, 0.17 -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen