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Flashing bios

Flashing bios doesn't necessarily depend on OS. However if you want to do with on Linux then do it with flashrom.

Here you can see how to do it.

edit: Example

Install it:
$ apt-get install flashrom

Detect whether flashrom knows about your chipset/mainboard/BIOS chip:
$ flashrom

Read the BIOS image into a file:
$ flashrom -r backup.bin

Write a BIOS image (proprietary or LinuxBIOS) on the ROM chip:
$ flashrom -wv newbios.bin


WARNING: This will overwrite your current BIOS! Make sure you know what you're doing!

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