The problem can be mitigated by deleting /etc/init/ttyAMA0.conf or editing to contain the following:
# ttyAMA0 - getty # # This service maintains a getty on ttyAMA0 from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[2345] and ( not-container or container CONTAINER=lxc or container CONTAINER=lxc-libvirt) stop on runlevel [!2345] pre-start script # getty will not be started if the serial console is not present stty -F /dev/ttyAMA0 -a 2> /dev/null > /dev/null || { stop ; exit 0; } end script respawn script exec /sbin/getty -L ttyAMA0 115200 vt102 end script # written by cloud image build process ** Changed in: cloud-init (Ubuntu) Assignee: (unassigned) => Robert C Jennings (rcj) ** Changed in: cloud-init (Ubuntu) Status: New => In Progress ** Changed in: cloud-init (Ubuntu) Milestone: None => ubuntu-13.04-month-5 ** Changed in: cloud-init (Ubuntu) Milestone: ubuntu-13.04-month-5 => None ** Changed in: cloud-init (Ubuntu) Milestone: None => raring-updates ** Changed in: cloud-init (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to cloud-init in Ubuntu. https://bugs.launchpad.net/bugs/1273205 Title: /etc/init/ttyAMA0.conf causes endless tty spewage if ttyAMA does not exist To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1273205/+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