Although vmdk disk format is supported by ec2-import-instance tool, every time I try to run the command on a vmdk file, I get the following error:
ERROR: File uses unsupported compression algorithm 0
I invoke the tool in the following format:
ec2-import-instance -f vmdk -o <ACCESS KEY> -w <SECRET KEY> <VMDK file>
I am using ec2 tools version 1.6.6.1.
Looks like it's got nothing to do with "compression algorithm" but instead more to do with supported vmdk formats as documented in http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/VMImportPrerequisites.html