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The reason Kolla works in the gate is it is using the btrfs graph driver.  The AUFS graph driver in the 14.04 kernel is busted.  This is what the precheck is meant to check.  Apparently it needs to also check the graph driver type in use.

Regards
-steve

From: Jeffrey Zhang <zhang.lei.fly at gmail.com<mailto:zhang.lei.fly at gmail.com>>
Reply-To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev at lists.openstack.org<mailto:openstack-dev at lists.openstack.org>>
Date: Sunday, May 8, 2016 at 1:57 AM
To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev at lists.openstack.org<mailto:openstack-dev at lists.openstack.org>>
Subject: Re: [openstack-dev] [kolla] Gate precheck job failed due to minimum kernel version on ubuntu 14.04

Please check this[0]. The root cause is that the
> While all kernels should work for Docker, some older kernels may have
> issues with some of the different Docker backends such as AUFS and OverlayFS.

[0] http://docs.openstack.org/developer/kolla/quickstart.html#installing-dependencies

On Sun, May 8, 2016 at 4:45 PM, Steve Kowalik <steven at wedontsleep.org<mailto:steven at wedontsleep.org>> wrote:
On 08/05/16 08:11, lương hữu tuấn wrote:
Hi,

@Robert: I was successful to update the kernel without change the image.

But that was Robert's point entirely. Installing the kernel will work
fine, but it does not get you running that kernel -- also like Robert
said, you need to change the image to run a different kernel than what
it has installed.

--
                                        Steve
"Stop breathing down my neck!"
"My breathing is merely a simulation."
"So is my neck! Stop it anyway."
         - EMH vs EMH, USS Prometheus


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--
Regards,
Jeffrey Zhang
Blog: http://xcodest.me<http://xcodest.me/>
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