[ubuntu-cloud] Post access

Scott Moser smoser at ubuntu.com
Fri Mar 18 15:33:44 UTC 2011

On Thu, 17 Mar 2011, Gerardo Fontes wrote:

> Hi Scott,
> My apologies, I meant Lucid instead of Hardy(I was discussing something
> about hardy at the time and my mind messed up) so a Lucid HVM is exactly
> what I'm looking forward to, it's kind of sad to know HVM are restricted, I
> will ask EC2 support to see if I can be able to create HVM images, in the
> meantime I'm really happy and grateful that you will be releasing a daily
> Lucid HVM, really, thank you! if there's something I can help with please
> let me know.

Well, there is an image available now, but it doesn't "just work".

The image is
   us-east-1 ami-3e08fa57 hvm/ubuntu-lucid-daily-amd64-server-20110318

I launched the instance, but it doesn't come all the way up.
I believe its blocked on cloud-init running , which is blocked waiting on
eth0 to come up.  I think that this is either a need to get the right
modules into the ramdisk (by modifying /etc/initramfs/modules), or it is
also possible our -server kernel simply doesn't have the right
modules/function built.

So, I would greatly appreciate your poking at that and seeing if you can't
get somethign working.  The process for debugging is, unfortunately,
expensive as you basically have to start an instance, stop it, detach
volume to another instance and try to fix it, re-attach volume, start
instance... and each start costs $1.60.

I'm probably not going to poke at this  myself in the near term, but that
hvm instance will be there if you want to try to get it going or diagnose

In the end, if you find its modules we need to get into the ramdisk (or
otherwise loaded on early boot -- /etc/modules) we can probably just
modify the build scripts to do that for hvm instances of lucid.

If its a kernel config issue, we'll need to get a bug opened and SRU'd.


> Sincerely,
> --
> Gerard
> On Thu, Mar 17, 2011 at 3:30 PM, Scott Moser <smoser at ubuntu.com> wrote:
> > On Thu, 17 Mar 2011, Gerardo Fontes wrote:
> >
> > > Hi,
> > >
> > > I would like post access to this list and plan to collaborate for an ec2
> > > cluster compute instance for hardy.
> >
> > Hi,
> >   I had agreed with Ahmed to turn on the cluster compute instance builds
> > for lucid as a sniff test.  If the un-tested build doesn't fail there
> > might be a daily Lucid HVM instance type tomorrow sometime.
> >   Hardy, though, is much older, and many, many
> > things weren't so well worked out in our build and release process on EC2.
> > It would be more difficult to make a Hardy cluster compute instance.
> >   So I would really like to avoid doing so and supporting hardy on
> > cluster compute.
> >
> > As I understand it, Amazon limits creation of "new" HVM images to
> > privileged accounts (of which 'Canonical' has one), so you can't do the
> > same process as we do.
> >
> >   That said, with the presence of a lucid cluster compute instance you
> > may be able to basically do a downgrade to hardy, or potentially a switch
> > of the root volume on an existing instance.
> >   There is more infomatoin about HVM instances at
> >
> > http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/using_cluster_computing.html
> >
> >   You'll have to be creative, but I do think that a hardy HVM instance
> > *could* be created, but you might end up wanting to use a newer kernel.
> >
> >   Scott
> >

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