A long, multi-line, heavily-quoted ubiquity/success_command preseed
value produced no log output at all -- not even its first echo --
despite the same bash script running cleanly standalone (bash -n and
actual execution both clean). Root cause traced to debconf's preseed
line-continuation handling, not the script itself. Fix: base64-encode
the whole script and reduce success_command to a single short line
with no special characters (`in-target bash -c 'echo <b64> | base64
-d | bash'`). With that, WLAN connects via nmcli during install, curl
reaches anode, and the .nmconnection file lands correctly on the
target disk (verified pre-reboot via ubiquity/reboot boolean false).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Thomas Stallinger
2c9223b452