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Is it possible to save/restore the UEFI configuration #138

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offsides opened this issue Mar 9, 2021 · 4 comments
Open

Is it possible to save/restore the UEFI configuration #138

offsides opened this issue Mar 9, 2021 · 4 comments

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@offsides
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offsides commented Mar 9, 2021

It appears that all the configuration in the UEFI setup is saved in the RPI_EFI.fd file, which is replaced any time the UEFI firmware is upgraded. Is it possible to save that data to a separate file, and either manually or (even better) automatically restore it when the firmware is upgraded? Otherwise I have to go into the UEFI setup and turn off the 3GB limit every time I upgrade the UEFI firmware.

Thanks!

@jlinton
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jlinton commented Mar 30, 2021

In my mind the solution to this will be the same as the solution to #102. That said, there has been some talk of actually taking over a bit of the SPI flash for them as well, but AFAIK, we need to get the pi foundation on board with that.

@d3vi1
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d3vi1 commented May 5, 2021

Yes, read the dmpstore UEFI Shell command manual. It can dump variables to a text file and import them from there.

@samerhaj
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This will no longer be an issue if we save the UEFI variables in SPI EEPROM (#6 )

@rgl
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rgl commented May 19, 2023

@samerhaj, also having a way to set them in a file would be quite liberating, because we could pre-prepare the sdcard in advance with the required variables (as-in #210).

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