- Download the bios iso cdrom from lenovo website
- # apt-get install genisoimage
- # geteltorito filedownloaded.iso > biosupdate.img
- # dd if=biosupdate.img of=/dev/sdc bs=512k
- reboot
Check /dev/sdX is the usb stick disk . Note that of=/dev/sdX want disk and not partition (eg. not sdX1 but only sdX).