[ubuntu-cloud] 8.04 32 bit AMI kernel lock bug

Scott Moser smoser at ubuntu.com
Thu Jan 20 18:04:37 UTC 2011


On Thu, 20 Jan 2011, Peter Wolanin wrote:

> For months we have been working around a bug in  ami-6836dc01, but
> this seems not to be reported any place.  Is this a known issue?
>
> When we use ruby/puppet (from the Canonical repo) on an instance with
> this AMI (e.g. a c1.medium) or in some cases when using java
> applications the instance gets locked up.
>
> Our work-around is using kernel 2.6.27-22-xen instead  - the person
> who created the fixed AMI used this method:

Please open a bug. Ideally run 'ubuntu-bug' from inside ami-6836dc01.
I'm not actually sure if that will work for you or not on hardy, but if it
does, that is preferred.

If not, just open a bug and add the tag 'ec2-images' and copy me.

Then, when it hangs, please get console output (ec2-get-console-output)
and attach to bug.


>
> - launch instance of ami-7e28ca17 (instance #1)
> - modprobe loop on instance #1
> - copy up creds, jdk and ec2-ami-tools to /dev/shm on instance #1
> - launch instance of ami-69d73000
> (canonical-beta-us/ubuntu-intrepid-beta2-20090226-i386.manifest.xml)
> to grab kernel modules from (instance #2)
> - tar.gz /lib/modules/2.6.27-22-xen on instance #2
> 	- scp to instance #1 and untar in /lib/modules
> - rm -rf the old /lib/modules/2.6.24-10-xen dir on instance #1
> - edit quick-bundle script on instance #1 to hard-code AKI to
> aki-20c12649, ARI to ari-21c12648 (the AKI and ARI from instance #2).
> 	- hard-coded manifest name, bucket to whatever.
> - run pre-clean script on instance #1
> - run quick-bundle script on instance #1
>
> --
> Ubuntu-cloud mailing list
> Ubuntu-cloud at lists.ubuntu.com
> Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-cloud
>
>



More information about the Ubuntu-cloud mailing list