preseed.cfg

# See http://www.virtualbox.org/svn/vbox/trunk/src/VBox/Main/UnattendedTemplates/ubuntu_preseed.cfg

choose-mirror-bin mirror/http/proxy string
d-i apt-setup/use_mirror boolean true
# Packages, Mirrors, Image
d-i base-installer/kernel/override-image string linux-server
d-i base-installer/kernel/override-image string linux-image-amd64
d-i apt-setup/restricted boolean true
d-i apt-setup/universe boolean true
d-i pkgsel/install-language-support boolean false

# Clock
@@VBOX_COND_IS_RTC_USING_UTC@@
d-i clock-setup/utc boolean true
d-i clock-setup/utc-auto boolean true
@@VBOX_COND_END@@
@@VBOX_COND_IS_NOT_RTC_USING_UTC@@
d-i clock-setup/utc-auto boolean false
d-i clock-setup/utc boolean false
@@VBOX_COND_END@@
d-i time/zone string UTC
d-i time/zone string @@VBOX_INSERT_TIME_ZONE_UX@@

d-i finish-install/reboot_in_progress note
d-i grub-installer/only_debian boolean true
d-i grub-installer/with_other_os boolean true
d-i grub-installer/bootdev  string /dev/sda

d-i partman-auto/disk string /dev/sda
d-i partman-auto-lvm/guided_size string max
d-i partman-auto/choose_recipe select atomic
d-i partman-auto/method string lvm
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
d-i partman-lvm/device_remove_lvm boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
d-i partman/confirm_write_new_label boolean true
d-i pkgsel/include string openssh-server cryptsetup build-essential libssl-dev libreadline-dev zlib1g-dev linux-source dkms nfs-common
d-i pkgsel/install-language-support boolean false
d-i pkgsel/update-policy select none
d-i pkgsel/upgrade select full-upgrade
tasksel tasksel/first multiselect standard, ubuntu-server

d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string us
d-i keyboard-configuration/modelcode string pc105
d-i debian-installer/locale string en_US

# Users
d-i passwd/user-fullname string @@VBOX_INSERT_USER_FULL_NAME@@
d-i passwd/username string @@VBOX_INSERT_USER_LOGIN@@
d-i passwd/user-password password @@VBOX_INSERT_USER_PASSWORD@@
d-i passwd/user-password-again password @@VBOX_INSERT_USER_PASSWORD@@
d-i passwd/root-login boolean true
d-i passwd/root-password password @@VBOX_INSERT_ROOT_PASSWORD@@
d-i passwd/root-password-again password @@VBOX_INSERT_ROOT_PASSWORD@@
d-i user-setup/allow-password-weak boolean true
d-i passwd/user-default-groups string admin sudo

zzComments.md

• combine the two, and add from http://www.virtualbox.org/svn/vbox/trunk/src/VBox/Main/UnattendedTemplates/ubuntu_preseed.cfg
• update from https://github.com/serainville/packer_templates/blob/master/Ubuntu-18.04/http/preseed.cfg
• from https://github.com/deimosfr/packer-debian/blob/master/http/preseed_stretch.cfg