I can confirm Oneiric images made with usb-creator boot on iMac9,2 and MacbookAir3,2, which have EFI 1.4 and 2.0, respectively.
** Changed in: usb-creator (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/702283 Title: usb-creator doesn't create EFI-bootable USB sticks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/702283/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs