ive been trying to get carrierwave to work with amazon s3. instead of 

```
storage :s3

```

i have 

```
storage :fog

```

changing it to storage :s3 gives an immediate error 

<https://stackoverflow.com/questions/10629827/carrierwave-cant-convert-nil-into-string-typeerror-when-using-s3>

so i changed it to storage :fog like the rdoc below says.

<http://rubydoc.info/gems/carrierwave/frames>

however when i try to upload an image, i get this crazy error. im using the devise gem as well.

my full stack trace is

```
Excon::Errors::MovedPermanently in RegistrationsController#update

Excon::Errors::MovedPermanently (Expected(200) <=> Actual(301 Moved Permanently)
  request => {:connect_timeout=>60, :headers=>{"Content-Length"=>95472, "Content-Type"=>"image/jpeg", "x-amz-acl"=>"private", "Cache-Control"=>"max-age=315576000", "Date"=>"Thu, 17 May 2012 05:28:55 +0000", "Authorization"=>"AWS AKIAIN6SC3YSGBSUKV4Q:kZOG9mG01jYn48ImFMYbgxAAQRk=", "Host"=>"user.a.777.s3-eu-west-1.amazonaws.com:443"}, :instrumentor_name=>"excon", :mock=>false, :read_timeout=>60, :retry_limit=>4, :ssl_ca_file=>"/Users/sasha/.rvm/gems/ruby-1.9.3-p125/gems/excon-0.13.4/data/cacert.pem", :ssl_verify_peer=>true, :write_timeout=>60, :host=>"user.a.777.s3-eu-west-1.amazonaws.com", :path=>"/uploads%2Fuser%2Fimage%2F59%2Fidea.jpg", :port=>"443", :query=>nil, :scheme=>"https", :body=>#<File:/Users/sasha/Desktop/rails_projects/blue_eyes/public/uploads/tmp/20120516-2228-19160-9893/idea.jpg>, :expects=>200, :idempotent=>true, :method=>"PUT"}
  response => #<Excon::Response:0x007fd72a146820 @body="<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<Error><Code>PermanentRedirect</Code><Message>The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint.</Message><RequestId>F5F5AF888E837622</RequestId><Bucket>user.a.777</Bucket><HostId>IShK3GIthzCQysLOKXnR+ijJiHmMuUtXBOpFxQM4uCvJgkEHfmFn43LL4oWmpT82</HostId><Endpoint>s3.amazonaws.com</Endpoint></Error>", @headers={"x-amz-request-id"=>"F5F5AF888E837622", "x-amz-id-2"=>"IShK3GIthzCQysLOKXnR+ijJiHmMuUtXBOpFxQM4uCvJgkEHfmFn43LL4oWmpT82", "Content-Type"=>"application/xml", "Transfer-Encoding"=>"chunked", "Date"=>"Thu, 17 May 2012 05:29:00 GMT", "Connection"=>"close", "Server"=>"AmazonS3"}, @status=301>):
  app/controllers/registrations_controller.rb:30:in `update'

```

i dont know what that even means.

in my initializers/carrierwave.rb i have..

```
CarrierWave.configure do |config|
  config.fog_credentials = {
    :provider               => 'AWS',       # required
    :aws_access_key_id      => 'somekey',       # required
    :aws_secret_access_key  => 'secretkey',       # required
    :region                 => 'eu-west-1'  # optional, defaults to 'us-east-1'
  }
  config.fog_directory  = 'bucket.name'                     # required
  #config.fog_host       = 'https://s3.amazonaws.com'            # optional, defaults to nil
  config.fog_public     = false                                   # optional, defaults to true
  config.fog_attributes = {'Cache-Control'=>'max-age=315576000'}  # optional, defaults to {}
end

```

and my uploader file has

```
  #storage :s3
  storage :fog
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

```

my gem file has

```
gem 'carrierwave'
gem 'thin'
gem 'fog'

```

when i boot my server, instead of webrick, it uses thin in development as well.

are my configurations wrong?
help would be much appreciated!
ive been super stuck on this carrierwave/s3 issue