Corrupt GPT table on first boot

Troubleshooting
1

Creating a bug report/issue

:white_check_mark: I have searched the existing open and closed issues

Required Information

  • DietPi version | cat /boot/dietpi/.version
    • G_DIETPI_VERSION_CORE=10
      G_DIETPI_VERSION_SUB=0
      G_DIETPI_VERSION_RC=1
      G_GITBRANCH=‘master’
      G_GITOWNER=‘MichaIng’
  • Distro version | echo $G_DISTRO_NAME $G_RASPBIAN
    • trixie
  • Kernel version | uname --all
    • Linux R5BP 6.1.115-vendor-rk35xx #1 SMP Wed Dec 24 10:54:39 UTC 2025 aarch64 GNU/Linux
  • Architecture | dpkg --print-architecture
    • arm64
  • SBC model | echo $G_HW_MODEL_NAME or (EG: RPi3)
    • ROCK 5B (aarch64) - It’s actually a Rock 5B +
  • Power supply used | (EG: 5V 1A RAVpower)
    • Radxa Power PD 30W - 9V / 2A, 12V / 2.5A
  • SD card used | (EG: SanDisk ultra)
    • SanDisk ImageMate 64GB

Additional Information (if applicable)

  • Can this issue be replicated on a fresh installation of DietPi?
    • Yes
  • Bug report ID | echo $G_HW_UUID
    • ee71bfae-d00d-4bb6-b536-6568f1989cac

Steps to reproduce

After a successfull write of the Radxa 5B image to the SD using Balena Etcher, on first boot, the GPT table is corrupt on the SD card.

  1. Flash the SD card with the Radxa 5B image using Balena Etcher
  2. Customize the setup files:
    1. dietpi.txt
    2. dietpi-wifi.txt
    3. dietpiEnv.txt
      1. fdtfile=rockchip/rk3588-rock-5b.dtb → fdtfile=rockchip/rk3588-rock-5b-plus.dtb
  3. Put SD into board and wait for the setup to complete
  4. login and run fdisk -l
  5. Error is shown for the boot partition

Expected behaviour

  • No errors with the GPT partitions.

Actual behaviour

The boot partition is corrupt, but the backup is OK.

  • Disk /dev/mtdblock0: 16 MiB, 16777216 bytes, 32768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 7B7A6FDE-8147-4712-A91F-524B1DDF8D33
The primary GPT table is corrupt, but the backup appears OK, so that will be used.

Extra details

Everything works fine, no issues while using the system whatsoever.
I’m building a RAID 1 with the board so that’s why I found this error. First I thought it was the cheap SD card I was using, so I bought a brand new SanDisk, but the error remains.
I flashed the SD cards multiple times, both of them, but the error is consistent, every single time I flash the image to the card and boot them.