Updating bios from linux
Finally, you may copy everything you want to flash there (BIOS, firmwares, etc).
The problem with the official Free DOS images is the lack of extra space for holding firmware and BIOS update files and programs.
(Dell offers this as a possibility on their site) Some notes before starting: The author for this procedure encountered several issues related to mounting the FAT partition type of the USB using the previous method on Linux with dd.
This procedure seeks to outline a method to flash the BIOS with Free DOS, a USB stick and Ruckus on Windows 7/8/8.1/10.
Large vendors including Dell and Logitech use this way to distribute firmware updates to Linux.
fwupd only supports flashing BIOS updates in UEFI mode.
So, all you need is a bootable floppy disk image with Free DOS kernel on it.
By far the easiest way to make a bootable Free DOS USB Stick is using ).
Most manufacturers provide a Windows executable or a BIOS executable that can only be run under Windows.
If using the GRUB method, choose the new entry on the list, and it should boot into Free DOS. It has worked with Lenovo laptops like the X1 Carbon, X220, X230, X260, W540, T450 and T450s.