Cannot Using initrd Flash with Orin Nano

I tried to apply Jetson Linux version 36.2 to the Jetson Orin Nano development board, but I can’t flash it successfully with the command to enable the rootfs A/B configuration.
I am using the command exactly as it is in the document below, under the section ‘Flashing with rootfs A/B enabled:’.
https://docs.nvidia.com/jetson/archives/r36.2/DeveloperGuide/SD/FlashingSupport.html#using-initrd-flash-with-orin-nx-and-nano

After execution, a dialog with the following content is displayed on the monitor connected to the development board, against the background of Ubuntu’s GUI display. When I press the ‘OK’ button on it, the screen disappears.

‘The installer encountered an unrecoverable error. A desktop session will now be run so that you may investigate the problem or try installing again.‘

Furthermore, for the ‘Flashing for the default case:’ in the same document, I have confirmed that it can be flashed successfully.

Also, the Orin Nano on the development board is equipped with a 128GB SSD, and I believe the capacity is sufficient.

Hi,

Can you please first try this before flashing?
https://docs.nvidia.com/jetson/archives/r36.2/DeveloperGuide/SD/FlashingSupport.html#skipping-oem-config

Hello, DaveYYY. Thank you for your reply.
After executing the command below, I followed the steps for Flashing with rootfs A/B enabled: and it started up successfully.

$ sudo tools/l4t_create_default_user.sh -u test -p test

Hello, DaveYYY. Thank you for your advice.
I would like to know what was wrong with the previous procedure, and why it can be avoided with the said method.

Maybe it just somehow got stuck during OEM configuration.