I found that when trying to upgrade I didn't have any more additional memory than 300mb on a 32Gig USB.
Solution: Download a Gparted.iso and install on another USB and Boot that USB program. Plug in to another USB port the non-running Mofo operating system USB. Run the Gparted software and increase the size of the operating system size with the resize commands into the unallocated portion. The unallocated portion will decrease. Worked for me.
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I found that when trying to upgrade I didn't have any more additional memory than 300mb on a 32Gig USB.
Solution: Download a Gparted.iso and install on another USB and Boot that USB program. Plug in to another USB port the non-running Mofo operating system USB. Run the Gparted software and increase the size of the operating system size with the resize commands into the unallocated portion. The unallocated portion will decrease. Worked for me.