BeagleBoneBlack Custom Image Issue

Hi,

We have our own debian bullseye image up and running on BBB currently. Now we want to make a mender image but we getting below error. I am using mender-convert and “beaglebone-black_debian_sdcard_config” files to create the image. What can be the problem??

U-Boot SPL 2022.04-00023-g4237220b-dirty (Apr 29 2022 - 22:02:41 +0300)
Trying to boot from MMC1

U-Boot 2022.04-00023-g4237220b-dirty (Apr 29 2022 - 22:02:41 +0300)

CPU : AM335X-GP rev 2.1
Model: TI AM335x BeagleBone Black
DRAM: 512 MiB
Reset Source: watchdog reset has occurred.
Reset Source: Power-on reset has occurred.
RTC 32KCLK Source: External.
Core: 149 devices, 14 uclasses, devicetree: separate
WDT: Started wdt@44e35000 with servicing (60s timeout)
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Loading Environment from EXT4…
** Unable to use mmc 0:1 for loading the env **
Board: BeagleBone Black
not set. Validating first E-fuse MAC
BeagleBone Black:
BeagleBone Cape EEPROM: no EEPROM at address: 0x54
BeagleBone Cape EEPROM: no EEPROM at address: 0x55
BeagleBone Cape EEPROM: no EEPROM at address: 0x56
BeagleBone Cape EEPROM: no EEPROM at address: 0x57
Net: eth2: ethernet@4a100000, eth3: usb_ether
Press SPACE to abort autoboot in 0 seconds
board_name=[A335BNLT] …
board_rev=[00C0] …
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
Couldn’t find partition 0:2 0x82000000
Can’t set block device
Couldn’t find partition 0:2 0x82000000
Can’t set block device
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1…
93384 bytes read in 9 ms (9.9 MiB/s)
Scanning disk mmc@48060000.blk…
Scanning disk mmc@481d8000.blk…
Found 8 disks
No EFI system partition
BootOrder not defined
EFI boot manager: Cannot load any image
Found EFI removable media binary efi/boot/bootarm.efi
385024 bytes read in 28 ms (13.1 MiB/s)
Booting /efi\boot\bootarm.efi
Welcome to GRUB!

lock: OK
lock: OK

EFI stub: Entering in SVC mode with MMU enabled
EFI stub: Booting Linux Kernel…
EFI stub: Using DTB from configuration table
EFI stub: Exiting boot services…