Unable to create s3 bucket in EU region - ruby

Question

body = "<CreateBucketConfiguration><LocationConstraint>EU</LocationConstraint></CreateBucketConfiguration>"
content_length = body.bytesize
content_type = "text/plain"
url = URI.parse("http://#{#name}.s3.amazonaws.com/")
req = Net::HTTP::Put.new(url.path)
req.body = body
req.add_field 'Date' , #time
req.add_field 'Host', "#{#name}.s3.amazonaws.com"
req.add_field 'Content-Type', "#{content_type}"
req.add_field 'Authorization', "#{signature}"
req.add_field 'Content-Length', "#{content_length}"
response = Net::HTTP.new(url.host, url.port).start do |http|
http.request(req)
end
puts response.read_body
returns 200 and creates bucket but in U.S Standard and not in EU. What am I missing here? Thanks for the help.
Here is the entire conversation
PUT / HTTP/1.1
Accept: */*
User-Agent: Ruby
Date: Wed, 19 Jan 2011 22:14:31 -0800
Host: mytest.s3.amazonaws.com
Content-Type: text/plain
Authorization: AWS AC8RVKAXAU8Q:41uTqvfncc2mE561YabgpGUouio=
Content-Length: 146
<CreateBucketConfiguration xmlns='http://s3.amazonaws.com/doc/2006-03-01/'>
<LocationConstraint>EU</LocationConstraint>
</CreateBucketConfiguration>
HTTP/1.1 200 OK
x-amz-id-2: lrlPt8Y19ZxFXPbZf9Gf6dYxTGLYkkMzo0tSNXCNk29o9xghcob502mcttQ/oo4W
x-amz-request-id: 3504CCA0E7AFFE95
Date: Thu, 20 Jan 2011 06:14:32 GMT
Location: /mytest
Content-Length: 0
Server: AmazonS3
HTTP/1.1 400 Bad Request
Transfer-Encoding: chunked
Date: Thu, 20 Jan 2011 06:14:32 GMT
Connection: close
Server: AmazonS3
0

Answer 1

The only thing that I can see is that you haven't included the xmlns in the request body - not sure if that will make any difference though.
xmlns="http://s3.amazonaws.com/doc/2006-03-01/"
body = "<CreateBucketConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><LocationConstraint>EU</LocationConstraint></CreateBucketConfiguration>"