So, same problem here.
Live 13.10 USB key created with usb-creator-gtk, tried on a Dell Latitude E6400.
Yesterday, with an unformatted hard disk, it worked: live system came up without trouble.
Today, with a harddisk formatted ext4 (whole disk; no partitions), doesn't work. Boot bails out with an initramfs busybox prompt.
So, same problem here.
Live 13.10 USB key created with usb-creator-gtk, tried on a Dell Latitude E6400.
Yesterday, with an unformatted hard disk, it worked: live system came up without trouble.
Today, with a harddisk formatted ext4 (whole disk; no partitions), doesn't work. Boot bails out with an initramfs busybox prompt.