Image fails to build on missing readinfofile (xxx/readinfo_t234_min_dev.xml)

Trying to build a flashable 35.3.1 image for an Orin NX on Xavier NX Devkit it fails with following message:

❯ sudo ./tools/kernel_flash/l4t_initrd_flash.sh --no-flash -S 28GiB --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_nvme_rootfs_ab.xml -p "-c bootloader/t186ref/cfg/flash_t234_qspi.xml -C 'net.ifnames=1 usbcore.usbfs_memory_mb=2048 fsck.repair=yes'" --showlogs --network usb0 --no-flash p3509-a02+p3767-0000 internal

...


************************************
*                                  *
*  Step : Generate flash packages *
*                                  *
************************************
Create folder to store images to flash
Generate image for internal storage devices
Generate images to be flashed
ADDITIONAL_DTB_OVERLAY=""  /ssd/nvidia/images/35.3.1/p3509-a02+p3767-0000/Linux_for_Tegra/flash.sh --no-flash --sign  -c p3509-a02+p3767-0000 internal

###############################################################################
# L4T BSP Information:
# R35 , REVISION: 3.1
# User release: 0.0
###############################################################################
Error: missing readinfofile (/ssd/nvidia/images/35.3.1/p3509-a02+p3767-0000/Linux_for_Tegra/bootloader/readinfo_t234_min_dev.xml).

The same build command worked flawlessly until recently on the same computer we keep specifically on ubuntu 20.04 to run nvidia scripts.

While there is no bootloader/readinfo_t234_min_dev.xml there is a bootloader/readinfo_t234_min_prod.xml which is also the READINFOFILE specified in p3767.conf.common.

Why does the command suddently not work anymore ?

Also tried the sudo update-binfmts --enable proposed in Unable to flash JetPack 5.1 to Jetson Xavier NX NVMe - #4 by artemchepurnoy without success.

Thanks and best regards.

Ok, seems the sudo update-binfmts --enable maybe fixed it.
Just had to delete the Linux_for_Tegra folder and restart from scratch.

Maybe due to a recent update on the old ubuntu 20.04 box.

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