This problem can be recreated in a trivial VirtualBox environment by attaching a virtual disk image with no partition table, such as a btrfs volume occupying an entire device directly. I've attached a virtual disk image of such a device. Simply attach this device as the only harddisk to a vanilla VirtualBox instance and boot an ubuntu live cd image.
** Attachment added: "Disk2.vdi.gz" https://bugs.launchpad.net/ubuntu/+bug/1241589/+attachment/3938373/+files/Disk2.vdi.gz -- 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/+bug/1241589/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
