Updating bios with a thumbdrive
Using CD, upgrade is possible from BIOS menu using 'Firmware Upgrade' without using below tools. Make sure however, that you always get the BIOS executable and NOT the Windows executable.
You then have one of several options: create a floppy, create a dd floppy image, create a user-installable distribution-specific package (e.g.
A list of hardware currently available in stable tree can be viewed here.
This how-to guide will show you how you can flash/update your BIOS on GIGABYTE motherboards.
Supported Hardware You can also find out if your hardware is supported by issuing the following command Note: With Linux kernel versions greater than 4.4, CONFIG_IO_STRICT_DEVMEM a new kernel security measure can make flashrom stop working, in that case you can try adding "iomem=relaxed" to your kernel parameters. Free DOS a free DOS-compatible operating system, is up to the challenge, no need for proprietary DOS versions.
So, all you need is a bootable floppy disk image with Free DOS kernel on it.
(Dell offers this as a possibility on their site) Some notes before starting: If your flash image is too large for a floppy, go to the Free Dos bootdisk website, and download the 10Mb hard-disk image.
This image is a full disk image, including partitions, so adding your flash utility will be a little trickier: First find the first partition (at time of writing, the first partition starts at block 63; this means that the partitions starts at offset If the mount went without errors, copy the BIOS flash utility and new BIOS image to the mounted floppy disk image.
For example: Finally reboot your machine, making sure the CD drive is first in the boot sequence, and run the BIOS upgrade procedure when the CD boots.It is designed to flash BIOS/EFI/coreboot/firmware/option ROM images on mainboards, network/graphics/storage controller cards, and various programmer devices.Warning: If you have a laptop/notebook/netbook, please do NOT try flashrom because interactions with the EC on these machines might crash your machine during flashing.However, there are a few utilities, that allow you to upgrade your system BIOS under Linux.Warning: Flashing motherboard BIOS is a dangerous activity that can render your motherboard inoperable!
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I then tried to create a recovery Flash Drive using the file SP52509that I found on the HP support site for the Probook 6450b. The partition is named HP_TOOLS and the following files are stored on the flash drive: \Hewlett-Packard\Hewlett-Packard\BIOS\Hwelett-Packard\BIOS\Current68CDE.