USB GRUB2 iso multiboot

insmod part_msdos
insmod fat
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 10A9-AFCE
loadfont /boot/grub/fonts/unicode.pf2
set gfxmode=auto
insmod vbe
insmod vga
insmod gfxterm
terminal_output gfxterm
insmod gfxmenu
loadfont ($root)/boot/grub/themes/ubuntu/dejavu-sans-10.pf2
loadfont ($root)/boot/grub/themes/ubuntu/dejavu-sans-12.pf2
loadfont ($root)/boot/grub/themes/ubuntu/dejavu-sans-bold-14.pf2
insmod png
set theme=($root)/boot/grub/themes/ubuntu/theme.txt
export theme
set timeout=10
set default="0>1"
submenu 'Ubuntu 13.04' --class submenu --id raring {
	menuentry "Ubuntu 13.04 Desktop 64bit" --class ubuntu --class gnu-linux --id raring {
		set isofile="/iso/Raring/ubuntu-13.04-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Xubuntu 13.04 Desktop 64bit" --class xubuntu --class gnu-linux --id raring {
		set isofile="/iso/Raring/xubuntu-13.04-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Ubuntu Gnome 13.04 Desktop 64bit" --class gnomeubuntu --class gnu-linux --id raring {
		set isofile="/iso/Raring/ubuntu-gnome-13.04-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Kubuntu 13.04 Desktop 64bit" --class kubuntu --class gnu-linux --id raring {
		set isofile="/iso/Raring/kubuntu-13.04-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Lubuntu 13.04 Desktop 64bit" --class lubuntu --class gnu-linux --id raring {
		set isofile="/iso/Raring/lubuntu-13.04-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
}
submenu 'Ubuntu 12.10' --class submenu --id quantal {
	menuentry "Ubuntu 12.10 Desktop 64bit" --class ubuntu --class gnu-linux --id quantal {
		set isofile="/iso/Quantal/ubuntu-12.10-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Xubuntu 12.10 Desktop 64bit" --class xubuntu --class gnu-linux --id quantal {
		set isofile="/iso/Quantal/xubuntu-12.10-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Ubuntu Gnome 12.10 Desktop 64bit" --class gnomeubuntu --class gnu-linux --id quantal {
		set isofile="/iso/Quantal/ubuntu-gnome-12.10.1-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Kubuntu 12.10 Desktop 64bit" --class kubuntu --class gnu-linux --id quantal {
		set isofile="/iso/Quantal/kubuntu-12.10-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Lubuntu 12.10 Desktop 64bit" --class lubuntu --class gnu-linux --id quantal {
		set isofile="/iso/Quantal/lubuntu-12.10-desktop-amd64.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
}
submenu 'Linux Mint 14' --class submenu --id nadia {
	menuentry "Linux Mint 14 Cinnamon 64bit" --class linuxmint --class gnu-linux --id nadia {
		set isofile="/iso/Quantal/linuxmint-14.1-cinnamon-dvd-64bit.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz file=/cdrom/preseed/mint.seed boot=casper initrd=/casper/initrd.lz iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
	menuentry "Linux Mint 14 Mate 64bit" --class linuxmint --class gnu-linux --id nadia {
		set isofile="/iso/Quantal/linuxmint-14.1-mate-dvd-64bit.iso"
		loopback loop $isofile
		linux (loop)/casper/vmlinuz file=/cdrom/preseed/mint.seed boot=casper initrd=/casper/initrd.lz iso-scan/filename=$isofile noeject noprompt splash --
		initrd (loop)/casper/initrd.lz
	}
}
menuentry "Parted Magic 2013" --class pmagic --class gnu-linux {
	set isofile="/iso/pmagic_2013_02_28.iso"
	loopback loop $isofile
	linux (loop)/pmagic/bzImage iso_filename=$isofile edd=off load_ramdisk=1 prompt_ramdisk=0 rw vga=normal loglevel=9 max_loop=256 vmalloc=384MiB
	initrd (loop)/pmagic/initrd.img
}
menuentry "DBAN ISO (Delete EVERYTHING)" --class dban {
	set isofile="/iso/dban.iso"
	loopback loop $isofile
	linux (loop)/DBAN.BZI nuke="dwipe" iso-scan/filename=$isofile silent --
}
menuentry "Memtest 86+" --class recovery {
	linux16 /memtest86+.bin
}
# menuentry "Tinycore ISO" {
#  loopback loop /tinycore.iso
#  linux (loop)/boot/bzImage --
#  initrd (loop)/boot/tinycore.gz
# }
# menuentry "SystemRescueCd" {
#  loopback loop /systemrescuecd.iso
#  linux (loop)/isolinux/rescuecd isoloop=/systemrescuecd.iso setkmap=us docache dostartx
#  initrd (loop)/isolinux/initram.igz
#}