Paul, Thank you for taking the time to report this bug and helping to make Ubuntu better.
I've just checked the current development version, and I see "@{NTPD_DEVICE} rw" in /etc/apparmor.d/usr.sbin.ntpd and "@{NTPD_DEVICE}="/dev/null"" in /etc/apparmor.d/tunables/ntpd. You said that you're using 10.04. This is an older release than where the bug was fixed in, so this would make sense. If you are using an old release, a workaround is to fix /etc/apparmor.d/usr.sbin.ntpd by hand. Even in the current release, it appears that it is intended and required to specify the serial port device in /etc/apparmor.d/tunables/ntpd. So as far as I can determine, this bug is fixed in the current development version and there has been no regression. But if I'm mistaken, please let us know! -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to ntp in Ubuntu. https://bugs.launchpad.net/bugs/596859 Title: ntp profile denies write access to serial devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/596859/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs