I've verified this works on both:
us-east-1 ami-1234de7b ebs/ubuntu-lucid-10.04-i386-server-20100827
us-east-1 ami-1634de7f ebs/ubuntu-lucid-10.04-amd64-server-20100827
One minor edit to your verification process:
< $ sudo rm -Rf /var/lib/cloud && reboot
> $ sudo rm -Rf /var/lib/cloud && sudo reboot
I've verified this works on both: lucid-10. 04-i386- server- 20100827 lucid-10. 04-amd64- server- 20100827
us-east-1 ami-1234de7b ebs/ubuntu-
us-east-1 ami-1634de7f ebs/ubuntu-
One minor edit to your verification process:
< $ sudo rm -Rf /var/lib/cloud && reboot
> $ sudo rm -Rf /var/lib/cloud && sudo reboot