Buildroot 2021.08 not booting from SD card
the linux-kernel does not matter with this output. Your rock64 has mastered to boot the spl (the idbloader-part of u-boot, at 0x8000 offset), but can not find the  u-boot.itb on mmc1.
Did you write it at 0x40000 offset of  your mmc?
# dd if=u-boot.itb of=/dev/mmcblk0 seek=512 bs=512

Did you overwrite it with the first partition of your mmc? You should leave about 2M at the start of the mmc for u-boot. So start your first partition at least at sector 4096, make it an EFI System with vfat and /extlinux/extlinux.conf in it. After that you can worry about your linux-kernel.
Good luck,

Messages In This Thread
RE: Buildroot 2021.08 not booting from SD card - by hunderteins - 11-08-2021, 02:25 AM

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