trying to make ubuntu uefi usb info from here. https://www.vanstechelman.eu/content/creating-an-uefi-bootable-linux-usb-stick?page=1 Use Rufus as follows: Set “Partition scheme and target system type” to “GPT partition scheme for UEFI computer”. Set “File system” to “FAT32 (default)” Set “Cluster size” to “4096 bytes (default)” Select “Create a bootable disk using ISO” Select the Ubuntu ISO. Make sure that Rufus hasn’t changed the partitioning scheme after you have selected the ISO. Comments GPT partition scheme Submitted by Ahmad (not verified) on Tue, 04/04/2017 - 14:15 Do I select GPT partition scheme because the hdd has a gpt partition scheme or is that just the default setting? This is necessary because Submitted by Lode on Tue, 04/04/2017 - 15:01 This is necessary because some UEFI bootloaders don't recognize the USB stick if you select a different partition scheme.