I have Ubuntu (latest version) installed on a Toshiba laptop which has UEFI, and need to update the BIOS.
Toshiba provides BIOS updates as EXE files. I do not have Windows as dual boot, so I tried to create a live USB with freedos installed and boot from that, to then run the EXE file. I have tried multiple times now using multiple methods, and the USB drive will not boot. I even tried to create a live USB with Win10 and that failed also. The USB drives boots just fine on another laptop that does not use UEFI, but not on the laptop that does. So I presume that the USB drive is not being set up correctly to be recognised as bootable on the Toshiba UEFI laptop?
This question is linked to an earlier question (EXT4-fs error on Toshiba Tecra with WD SSD) so you can see the methods I tried (with thanks to @heynnema). These include using UNetbootin and mkusb.
Any help would be much appreciated as I really need to update the BIOS.