This has nothing to do with the manner in which the USB stick is created. Per comment #33, the problem can be triggered using the original Live CD ISO mounted as a virtual CD to a VirtualBox machine in which the only hard disk attached has an unexpected partition table, such as a full volume BTRFS filesystem.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1241589 Title: ubuntu 13.10 unable to boot on live usb (busy box - initramfs) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1241589/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs