hi all, i want help in following scenario. as computer boot up with coreboot. it must wait for approximately 5 seconds and listnen on tftp. if during that time if any firmware available than my system will download that firmware and update with corrent one and that system must boot with this new firmware. otherwise it will boot up with old firmware.
i am using qemu. so is thre any idea for qemu with tftp Amrish purohit
Amrish Purohit wrote:
i want help in following scenario. as computer boot up with coreboot. it must wait for approximately 5 seconds and listen on tftp. if during that time if any firmware available than my system will download that firmware and update with current one and that system must boot with this new firmware. otherwise it will boot up with old firmware.
Why not just boot Linux on the target and run flashrom? You can have the Linux system on your target mount an NFS filesystem containing the new firmware image, thus avoiding the need for tftp altogether.
Alternatively, a shell payload could be developed that has much the same functionality as the hush shell in U-Boot. Just load the new firmware image via ftp, tftp, NFS, USB, etc. into RAM and flash the new firmware from the RAM image. LinuxBIOS had a low level shell, but I suspect that the code for it may have been dropped or it may never have been an official part of the LinuxBIOS (now coreboot + payloads) source code.
i am using qemu. so is there any idea for qemu with tftp
So do you want to change the mainboard firmware or the virtual firmware image that qemu uses?
Sincerely,
Ken Fuchs
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Amrish Purohit -
Ken.Fuchs＠bench.com