I am using unetbootin to load my Ubuntu ISO image onto my usb stick. I have formatted it as fat32 various times but I am still unable to boot from it.
Is there any option on the usb stick which makes it non bootable, like in the partition table? If so, is there any way I can change it?
Some usb sticks don't ever seem to be bootable. In most cases though, the hp drive format tool, which there's a mirror of here seems to do the trick. HP created it for formatting their own drives, but it nearly always seems to work. If that tool dosen't work, chances are the drive's not bootable, even if the bootable flag is flipped for some reason.
After running this tool, you can format, or install an OS on it and the drive will remain bootable.
