I am a bit ignorant about image formats and such. The size of the Ubuntu precise cloud image at http://uec-images.ubuntu.com/precise/current/precise-server-cloudimg-amd64-disk1.img is about 221Mb. If I boot that image with flavor m1.tiny and use image-create I get an image that is 2Gb. If I do the same with flavor m1.large the resulting image is 10Gb. Is there a way to create snapshots that don't result in huge images? -David