Flashrom

Flashrom Bios Update Linux

Updating the BIOS using flashrom is an advanced process and should be done with caution, as it involves directly flashing the firmware. flashrom is a utility that can be used to read, write, verify, and erase BIOS/firmware chips. It supports a wide range of motherboards, chipsets, and firmware, including American Megatrends Inc. (AMI) BIOS.

Here’s a step-by-step guide to updating the BIOS using flashrom:

1. Install flashrom
First, you need to install flashrom on your Ubuntu system:

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sudo apt-get update
sudo apt-get install flashrom
2. Identify the BIOS Chip
Before proceeding, you should identify the BIOS chip to ensure that it’s supported by flashrom:

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sudo flashrom --programmer internal --flash-name
This command will detect and display information about your BIOS chip.

3. Backup Your Current BIOS
Before flashing a new BIOS, it's crucial to create a backup of your current BIOS:

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sudo flashrom --programmer internal --read backup_bios.bin
This will create a file named backup_bios.bin containing the current BIOS. Keep this file safe in case you need to restore your BIOS.

4. Download the New BIOS
Download the new BIOS file from the motherboard or system manufacturer's website. Make sure the file is in a format compatible with your system, typically .bin, .rom, or similar.

5. Flash the New BIOS
Use flashrom to write the new BIOS to the chip. Replace new_bios.bin with the actual BIOS file you downloaded:

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sudo flashrom --programmer internal --write new_bios.bin
flashrom will write the new BIOS to the chip and verify it.

6. Verify the Flash
flashrom usually verifies the flash automatically, but you can also do it manually:

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sudo flashrom --programmer internal --verify new_bios.bin
This ensures that the BIOS was written correctly.

7. Reboot Your System
After successfully flashing the BIOS, reboot your system to apply the changes:

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sudo reboot
Additional Considerations
Risk: Flashing the BIOS using flashrom can be risky, especially if the wrong file is used or the process is interrupted. Make sure you understand the process fully before proceeding.
Supported Hardware: Check the flashrom documentation to ensure that your motherboard and BIOS chip are supported.
Alternative Methods: If your system provides an official BIOS update tool (through a bootable USB, manufacturer’s software, or BIOS menu), it’s generally safer to use that method.
Custom Logo in BIOS
If you're referring to embedding a custom logo in the BIOS:

Modify the BIOS: Modifying the BIOS to include a custom logo is complex and involves using BIOS modding tools specific to your motherboard (like AMI's AMIBCP or UEFITool).
Legal and Warranty Considerations: Modifying the BIOS to include a custom logo may void warranties or violate terms of use. Proceed with caution and ensure you have the right to make such modifications.
Using flashrom is powerful but should only be done by users familiar with BIOS flashing processes. If unsure, consider using official tools or consulting with an expert.