Thank you for your reply.
I also asked the question on the Manjaro forum. Strit, the project lead on the manjaro arm project, replied:
https://forum.manjaro.org/t/partial-boot...mmc/132931
Therefore, it was not the installation of a new system on the emmc that broke u-boot, but the update. Therefore, the u-boot on the SD card is also broken, and won't boot my computer any further, because I did the update on the sd card before rebooting.
A solution could be to install another linux distribution on a second sd card, in order to preserve the data on the first sd card and have a working u-boot on the second sd card, fix the problem on the emmc by starting the system from the second sd card, then patch the u-boot of the first sd card from the patched system on the emmc.
Indeed, it is not only a question of overwriting the defective version of u-boot of the emmc and the sd card, but also of finding a working boot loader and installing it without the risk of bricking the pinebook pro and the sd cards.
Do you have a link to the documentation about the boot system of the pinebook pro? I don't know this subject well, and I would like to understand the solution before applying it.
I also asked the question on the Manjaro forum. Strit, the project lead on the manjaro arm project, replied:
Quote:We have had some reports that newer uboot packages does not work correctly. We are looking into it.
In the meantime, I'd recommend you try tow-boot:
https://wiki.manjaro.org/index.php/Manja...ptional.29
https://forum.manjaro.org/t/partial-boot...mmc/132931
Therefore, it was not the installation of a new system on the emmc that broke u-boot, but the update. Therefore, the u-boot on the SD card is also broken, and won't boot my computer any further, because I did the update on the sd card before rebooting.
A solution could be to install another linux distribution on a second sd card, in order to preserve the data on the first sd card and have a working u-boot on the second sd card, fix the problem on the emmc by starting the system from the second sd card, then patch the u-boot of the first sd card from the patched system on the emmc.
Indeed, it is not only a question of overwriting the defective version of u-boot of the emmc and the sd card, but also of finding a working boot loader and installing it without the risk of bricking the pinebook pro and the sd cards.
Do you have a link to the documentation about the boot system of the pinebook pro? I don't know this subject well, and I would like to understand the solution before applying it.
Pinebook Pro, standard config (Manjaro)