Still trialling Amazon's EC2 Elastic Compute Cloud and came to the stage where I wanted to persist my image for later use.
Following the Getting Started Guide I got as far as uploading my bundle using ec2-upload-bundle. I would get a warning message telling me I was uploading a bundle across regions and the kernel and/or ramdisk may not work across regions.
My image is in the EU region so I assumed it must be trying to put the bundle into the NA region - why I wasn't sure. Tried lots of command line options, no luck.
It turns out if you specify a bucket that doesn't exist on S3 it will create one for you. Possibly by default or by my setup it was creating one in the NA region so every time I ran the ec2-upload-bundle it came up with the same message.
Not wanting to delve too deeply into S3 and its APIs I installed the Firefox add-on CloudFront. You still can't see which region a bucket is in but you can at least specify Europe when creating a new bucket. Did just that, ran ec2-upload-bundle again and my image uploaded with no errors and the ec2-register command finally worked. Hurrah.
This is probably documented in a nice succinct paragraph somewhere in Amazon's great documentation but not where I started looking....
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