- Format your USB stick as FAT32 in GParted. You might have to adjust partitions at this stage, mine was setup correctly.
- Open UNetbootin (install if not found on your system) and input the options up to where it shows the USB partition to install to. Mine was set to /dev/sdb1 - Don't actually try to create the installer USB from the ISO at this point, however. That won't work because it's set to FAT32, not NTFS.
- Leave UNetbootin open as is. Reopen GParted if you closed it (not necessary).
- Format the USB in GParted as NTFS this time. You *might* have to add the "boot" flag depending on how GParted behaves at this point. I didn't.
- Now, switch your view back to UNetbootin, which should still show the same options that you left open, and click OK.
- UNetbootin may complain that the USB drive isn't mounted. To mount it, just open the terminal and type: sudo mount /dev/sdb1 /mnt That should fix the problem such that you can proceed in UNetbootin.
When you do this, UNetbootin will think you are using a FAT32 partition but will let you use NTFS format for the USB stick.