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http://open.eucalyptus.com/wiki/Euca2oolsGuide* list of all commands: http://blogs.plexibus.com/2010/06/17/eucalyptus-euca2ools/
in particular I followed '/Euca2oolsInstallJaunty_v1.1' for my Ubuntu VM deployment,
but skip step about updating /etc/apt/sources.list with 'deb http://www.eucalyptussoftware.com/downloads/repo/euca2ools/1.1/ubuntu jaunty universe'
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euca-register -a $EC2_ACCESS_KEY -s $EC2_SECRET_KEY --url $EC2_URL jan7-Sl5.3-x86_64-12GB-external-build/image.manifest.xml
-bash-3.2$ ls -l /global/common/carver/tig/euca2ools/1.2/bin/|grep key