I have been attempting to create a Xubuntu live USB using using these instructions for quite a few hours:How to make a persistent live Ubuntu USB with more than 4GB. I followed the instructions to the letter and now my usb crashes on bootup. I repeated the instructions a few times and checked everything but it still will not work. Please help.
You just have to do this via mkusb tool https://help.ubuntu.com/community/mkusb/persistent This will do the job automatically. First check if the usb drive is ok and non damaged.