UltraZYNQ+ Build

Problem solve:
Indeed the boot arg is not default edited by the make script on the PYNQ.
I not even notice this is the case as once it stuck I had no idea how I can get the log why and what reason it is stucking.
Maybe Sarunas you can advise a bit how we can debug the root cause it is stuck.

         Starting Samba NMB Daemon...
         Starting OpenBSD Secure Shell server...
         Starting Permit User Sessions...
[  OK  ] Started Unattended Upgrades Shutdown.
[  OK  ] Finished Permit User Sessions.
[  OK  ] Started Getty on tty1.
[  OK  ] Started PYNQ X11 Server.
[  OK  ] Started Serial Getty on ttyPS0.
[  OK  ] Reached target Login Prompts.

PYNQ Linux, based on Ubuntu 20.04 pynq ttyPS0

pynq login: xilinx (automatic login)

Welcome to PYNQ Linux, based on Ubuntu 20.04 (GNU/Linux 5.4.0-xilinx-v2020.2 aarch64)

The programs included with the PYNQ Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

PYNQ Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

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