Kernel boot output missing from VNC/Spice consoles with AMI images

[Rafi Khardalian]

If you are connected to a VNC or Spice console during the boot process of a VM which uses an AMI image, you will see no output. This is because Nova passes only console=ttyS0 to the kernel, which makes the console log work but disables virtual terminal output. Instead, Nova should pass two arguments:

console=ttyS0 console=tty0

Doing so is supported and confirmed to work, per the kernel docs:
http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/configure-kernel.html

[Chuck Short (zulcss)]

which version and which distro are you using?

[Rafi Khardalian (rkhardalian)]

This applies to the latest code as of 4/3/2013 (master and milestone-proposed).

Using Precise but that's not really going to factor in here.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/27194

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/27194
Committed: http://github.com/openstack/nova/commit/b980de7cd1ac0e9085c20392bf82d1d3b12b24e8
Submitter: Jenkins
Branch: master

commit b980de7cd1ac0e9085c20392bf82d1d3b12b24e8
Author: Nicolas Simonds <email address hidden>
Date: Thu Apr 25 13:07:06 2013 -0700

    Fix missing kernel output via VNC/Spice on boot

    Bug 1164021

    Use both ttys0 and tty0 as console options to the kernel during
    boot.

    Change-Id: I0365ff7cad021fb6ca551651d00d58297087e95e

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/grizzly
Review: https://review.openstack.org/27742

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/27742
Committed: http://github.com/openstack/nova/commit/7771985a0fbad4642c9c657b6d041c54b1cf1efe
Submitter: Jenkins
Branch: stable/grizzly

commit 7771985a0fbad4642c9c657b6d041c54b1cf1efe
Author: Nicolas Simonds <email address hidden>
Date: Thu Apr 25 13:07:06 2013 -0700

    Fix missing kernel output via VNC/Spice on boot

    Bug 1164021

    Use both ttys0 and tty0 as console options to the kernel during
    boot.

    Change-Id: I0365ff7cad021fb6ca551651d00d58297087e95e
    (cherry picked from commit b980de7cd1ac0e9085c20392bf82d1d3b12b24e8)