Or:
uuid_disk = ${uuid_gpt_disk}; name=bootloader start=0 size=4M name=reserved start=4M size=32M name=cache start=36M size=256M name=env start=292M size=8M name=boot start=300M size=32M name=system start=332M size=800M name=data start=1132M size=- name=dtb start=1132M size=16M # This is critical Write using: gpt write mmc 0 $partitions If booting from SD card, mount the boot partition on a Linux PC:
Example partition layout for Amlogic S905X:
Error -5 indicates I/O timeout. The eMMC had developed weak blocks in the dtb partition area.
# Check current partitions mmc list part list mmc 0 gpt write mmc 0 $partitions Load a known good DTB from an external source usb start fatload usb 0 0x1000000 myboard.dtb Write to the dtb partition store dtb write 0x1000000 0x40000 # size in hex Solution 3: Disable DTB Verification (Temporary) If you are in a development environment, you can disable the verification step by modifying U-Boot environment variables:
Example of a full error log:
setenv verify_dtb no setenv bootcmd 'run default_bootcmd' saveenv reset This bypasses security checks and should only be used for debugging. Solution 4: Rebuild the Partition Table from Scratch For advanced users: use gpt or aml_gpt commands to recreate the partition layout exactly as the bootloader expects.
int aml_dtb_verify_partition(char *part_name) { int ret = aml_partition_read(part_name, dtb_addr, 0, dtb_size); if (ret < 0) { printf("Uboot Partition %s Verify Patition Error Result: %d\n", part_name, ret); return -1; } return validate_dtb_magic(dtb_addr); } Understanding that function helps you know exactly why ret is non-zero. Symptom: A Beelink GT1 (Amlogic S912) refused to boot after an OTA update. Serial console showed: Uboot Partition Aml Dtb Verify Patition Error Result -5
