ubiquity-dm: starting
ubiquity-dm: plymouth
ubiquity-dm: start X ['X', '-br', '-ac', '-noreset', '-nolisten', 'tcp', '-background', 'none', 'vt1', ':0']

X.Org X Server 1.21.1.7
X Protocol Version 11, Revision 0
Current Operating System: Linux xubuntu 6.1.0-16-generic #16-Ubuntu SMP PREEMPT_DYNAMIC Fri Feb 24 14:37:30 UTC 2023 x86_64
Kernel command line: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/xubuntu.seed maybe-ubiquity quiet splash ---
xorg-server 2:21.1.7-1ubuntu2 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.42.2
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Mar 18 02:55:21 2023
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
resizing primary to 1024x768
primary is 0x557bb22f0270
ubiquity-dm: set vars
ubiquity-dm: pam_open_session
ubiquity-dm: dm-scripts
ubiquity-dm: start frontend gtk_ui
dbus-update-activation-environment: setting DISPLAY=:0
No such schema “org.gnome.settings-daemon.plugins.background”
No such key “draw-background”
No such schema “org.gnome.metacity”
ubiquity-dm: start greeter
Segmentation fault (core dumped)
ubiquity-dm: greeter exited with code 139
ubiquity-dm: Failed with an exception:
ubiquity-dm: Traceback (most recent call last):
  File "/usr/bin/ubiquity-dm", line 875, in main
    ret = run(vt, display, username)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/bin/ubiquity-dm", line 850, in run
    ret = dm.run(*sys.argv[4:])
          ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/bin/ubiquity-dm", line 773, in run
    subprocess.call(cmd)
  File "/usr/lib/python3.11/subprocess.py", line 389, in call
    with Popen(*popenargs, **kwargs) as p:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/subprocess.py", line 1024, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.11/subprocess.py", line 1901, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'zenity'

(II) Server terminated successfully (0). Closing log file.