this post was submitted on 04 Apr 2025
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I have been banging my head against the desk over this. I can use u-boot on the SD card to boot alpine off a flash drive. I cannot get the entire thing running off SD card though. It keeps doing this. What am I missing?

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[–] just_another_person@lemmy.world 1 points 14 hours ago (1 children)

The other option here seems to be using uboot to boot your SD card: https://docs.u-boot.org/en/latest/usage/partitions.html

Since you know you can boot it via USB, you can just tell it to then boot from your SD Card instead of relying on the r4s to boot it. Docs say it's possible to flash to the eMMC as well https://wiki.friendlyelec.com/wiki/index.php/NanoPi_R4S#eMMC_Boot

[–] muusemuuse@lemm.ee 1 points 13 hours ago

u-boot loads off the SD card because there is nowhere else to put it on this board. I want to put alpine there too. Alpine and u-boot can be on the same card but alpine wont finish loading unless it is being loaded from the USB port.