Initial flashing of Dasharo firmware can be done from Linux using flashrom with the internal programmer. This document describes the process of building, installing and running flashrom on Ubuntu 22.04.
Deploy using Dasharo Tools Suite
For simplicity we recommend using Dasharo Tools Suite to omit all compilation steps and deploy the Dasharo firmware seamlessly. Be sure to disable the BIOS lock in the AMI firmware setup utility:
- Go to
PCH IO Configuration
- Save changes and reset.
Now you are ready to use Dasharo Tools Suite (DTS):
- Boot Dasharo Tools Suite.
- Perform Dasharo installation.
Please follow generic guide for Dasharo flashrom fork.
Reading flash contents
Always prepare a backup of the current firmware image. To read from the flash
and save them to a file (
backup.rom), execute the following command:
flashrom -p internal -r dump.rom
Keep the backup for later recovery if needed.
To flash Dasharo on the platform, execute the following command - replace
[path] with the path to the Dasharo image you want to flash, e.g.
If stock firmware is currently installed:
flashrom -p internal -w [path] --ifd -i bios
If Dasharo is currently installed, only the
RW_SECTION_A partition of the
flash needs to be updated. Flash it using the following command:
flashrom -p internal -w protectli_vault_ehl_v1.x.y.rom --fmap -i RW_SECTION_A
This command also preserves Dasharo UEFI settings and the boot order.