The command behind of install app of Ubuntu Live CD is `ubiquity gtk_ui`
$ apt-cache search ubiquity
ubiquity - Ubuntu live CD installer
ubiquity-casper - Configuration hooks for live installer
ubiquity locates at /usr/bin/ubiquity and /usr/lib/ubiquity/*
$ apt-file list ubiquity-casper
ubiquity-casper: /usr/bin/casper-reconfigure
ubiquity-casper: /usr/lib/ubiquity/target-config/20xconfig
ubiquity-casper: /usr/lib/ubiquity/target-config/22gnome_panel_data
ubiquity-casper: /usr/lib/ubiquity/target-config/25modules
ubiquity-casper: /usr/lib/ubiquity/target-config/30accessibility
ubiquity-casper: /usr/lib/ubiquity/target-config/32gnome_power_manager
ubiquity-casper: /usr/lib/ubiquity/target-config/40install_driver_updates
ubiquity-casper: /usr/lib/ubiquity/target-config/45jackd2
ubiquity-casper: /usr/lib/ubiquity/target-config/49kubuntu_gnome_icon_cache
ubiquity-casper: /usr/share/doc/ubiquity-casper/changelog.gz
ubiquity-casper: /usr/share/doc/ubiquity-casper/copyright
We can find and set default value for some settings:
debconf-get-selections | grep lang
echo "ubiquity localechooser/languagelist select zh_CN" | debconf-set-selections
sudo strace useradd -m test1 1>out 2>err
new user profiles in /etc/skel/
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