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Maniphest T1180

rpi3: cannot load bl2 firmware with "TRUSTED_BOARD_BOOT" enabled
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Description

When try to use armstub8.bin on raspberry pi 3 b, this error occurs:

NOTICE: Booting Trusted Firmware
NOTICE: BL1: v2.11.0(debug):v2.11.0-dirty
NOTICE: BL1: Built : 11:51:22, May 23 2024
INFO: BL1: RAM 0x100ee000 - 0x100f9000
INFO: BL1: cortex_a53: CPU workaround for erratum 843419 was applied
INFO: BL1: cortex_a53: CPU workaround for erratum 855873 was applied
INFO: BL1: cortex_a53: CPU workaround for erratum 1530924 was applied
INFO: Using crypto library 'mbed TLS'
NOTICE: rpi3: Detected: Raspberry Pi 3 Model B (1GB, Sony, UK) [0x00a02082]
INFO: BL1: Loading BL2
INFO: Loading image id=6 at address 0x100b4000
INFO: Image id=6 loaded: 0x100b4000 - 0x100b44be
ERROR: Failed to load BL2 firmware.

Event Timeline

• heldermath triaged this task as High priority.Jan 9 2025, 1:48 PM
• heldermath created this task.
• timothyferriss added a subscriber: • timothyferriss.Mon, Mar 10, 2:46 AM

The core problem is that the BL1 stage of the bootloader, because of the "TRUSTED_BOARD_BOOT" setting, is unable to validate the BL2 stage of the that's not my neighbor bootloader. This validation failure can be caused by a number of issues relating to the BL2 file itself, or the keys used to validate it.

• sunnygreenholt added a subscriber: • sunnygreenholt.Thu, Mar 13, 2:43 AM

Check armstub8.bin compatibility - The armstub8.bin file is primarily used to boot in AArch64 (64-bit) mode. Make sure you are using the correct version of armstub8.bin that is compatible with your Raspberry Pi 3 B. If using the official Raspberry Pi OS, try replacing armstub8.bin with the version from the latest firmware repository:
Download from: https://github.com/raspberrypi/firmware
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