T450 bios upgrade on Ubuntu

[Olwe]

How can I get/install the latest possible BIOS on my T450s if I'm using Ubuntu and don't have the typical Lenovo Vantage Windows software?

[dr_st]

https://support.lenovo.com/il/en/downloads/ds102109
Download the ISO, burn it to CD, or (if you don't have an external CD drive handy) to a flash drive using an ISO-to-USB tool such as Rufus, boot from it and flash.

[Olwe]

How can I get it onto a usb? Nothing on Ubuntu or Windows (Rufus) wants to write it to a USB, only to a CD. The T450S has no CD.

[dr_st]

Rufus is specifically a tool for creating bootable USB drives from CD images. Are you sure you are referring to the same thing?
https://rufus.ie/