Booting 2 different versions off USB with grub4dos

[jk9]

USB Stick with 3 partitions:

.../sda1
.../sda2
.../sda3

Bootable sda1 with grub4dos bootloader.
dd if=/Kiosk1/Kiosk1.iso of=/dev/sda2
dd if=/Kiosk2/Kiosk2.iso of=/dev/sda3

grub4dos bootloader's menu:

Code: Select all

timeout 30
title Porteus Kiosk 1
root (hd0,1)
kernel /boot/vmlinuz
initrd /boot/initrd.xz

timeout 30
title Porteus Kiosk 2
root (hd0,2)
kernel /boot/vmlinuz
initrd /boot/initrd.xz  

Now, Porteus Kiosk 1 boots and runs flawlessly.

However, Porteus Kiosk 2 boots then stops with the message below:



Any help would be highly appreciated.