How can I make a Ubuntu Live USB with Ubuntu, GParted & HBCD?

Solution 1:

Here I got something, taken from pendrivelinux.com

First, install the Multisystem LiveUSB Tool

1. Download and Open the Script with Ubuntu's Archive Manager
   
   
   
2. Extract the install-depot-multiboot.sh Script to your Desktop
   
   
   
   
3. Double Click install-depot-multiboot.sh from your desktop and select the option to Run in Terminal
   
   
   
   

Second, how to use it

1. Insert a USB Drive
2. Launch the Script via Applications > Accessories > MultiBoot
3. Select your USB Device from the list and click Validate
   
   
   
4. Now simply Drag and Drop an ISO into the Window to add the Distribution (repeat the process to add more ISOs)
   
   
5. Once finished, restart your PC, set your boot menu to boot from the USB device, Select the Distro you want to Boot and enjoy!

Solution 2:

https://help.ubuntu.com/community/InstallAndBootMultipleLinuxFromPendriveFlashDriveUSBDisk

Should allow you to do that.