-# which packages do you want do dpkg-reconfigure?
-# RECONFIGURE='locales console-data'
-RECONFIGURE='console-data'
-
-# use /etc/debootstrap/locale.gen for configuration of locales?
-LOCALES='yes'
-
-# use /usr/share/zoneinfo/$TIMEZONE for /etc/localtime
-TIMEZONE='Europe/Vienna'
-
-# remove apt cache in chroot after installation of packages finished?
-RM_APTCACHE='yes'
-
-# generate initrd via update-initramfs?
-INITRD='yes'
-
-# this file contains information that has been caught during
-# installation and will be displayed at the end of the installation
-INSTALL_NOTES='/etc/debootstrap/install_notes'
+# Packages that should be 'dpkg-reconfigure'-ed while installation.
+# Default: 'console-data'.
+# RECONFIGURE='console-data'
+
+# Generate locales using /etc/debootstrap/locale.gen configuration file.
+# Default: 'yes'
+# LOCALES='no'
+
+# locales (LANG) that should be used as default.
+# Default: 'en_US.UTF-8'
+# DEFAULT_LOCALES='en_US.UTF-8'
+
+# locales (LANGUAGE) that should be used as default.
+# Default: 'en_US:en'
+# DEFAULT_LANGUAGE='en_US:en'
+
+# Use /usr/share/zoneinfo/$TIMEZONE for /etc/localtime.
+# Default: 'Europe/Vienna'
+# TIMEZONE='Europe/Vienna'
+
+# Clean APT cache after installation is finished.
+# Default: 'yes'
+# RM_APTCACHE='no'
+
+# Upgrade system via apt-get/aptitude update + [safe-]upgrade.
+# Default: 'yes'
+# UPGRADE_SYSTEM='no'
+
+# Explicit generation of initrd via update-initramfs.
+# Default: 'yes'
+# INITRD='no'
+
+# If the specified file exists its content will be displayed at the end of the
+# installation process.
+# Useful for checking for errors and display warning message.
+# Default: '/etc/debootstrap/install_notes' (empty file).
+# INSTALL_NOTES='/etc/debootstrap/install_notes'
+
+# Use fixed disk identifiers for Virtual Machine builds.
+# Useful for reproducible builds.
+# Default: 'no'
+# FIXED_DISK_IDENTIFIERS='yes'
+
+# Disk identifier when using FIXED_DISK_IDENTIFIERS='yes'.
+# Use uuid-runtime's uuidgen tool to generate random UUIDs on demand.
+# Default: '26ada0c0-1165-4098-884d-aafd2220c2c6'
+# DISK_IDENTIFIER="$(uuidgen)"
+
+# Delete grml-debootstrap configuration files from installed system.
+# Useful for reproducible builds or if you don't want to leak information.
+# Default: 'no'
+# REMOVE_CONFIGS='yes'