Minmal preseed.cfg for Debian on KVM, German keyboard/timezone, auto LVM partitioning, serial console

preseed.cfg

d-i debian-installer/locale string en_US
d-i keymap select de
d-i keyboard-configuration/xkb-keymap select de
d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string de
d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string debianhost
d-i netcfg/get_domain string mydomain
d-i netcfg/wireless_wep string

d-i mirror/country string manual
d-i mirror/http/hostname string ftp.de.debian.org
d-i mirror/http/directory string /debian
d-i mirror/http/proxy string

d-i clock-setup/utc boolean true
d-i time/zone string Europe/Berlin
d-i clock-setup/ntp boolean true

d-i partman-auto/method string lvm
d-i partman-lvm/device_remove_lvm boolean true
d-i partman-md/device_remove_md boolean true
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
d-i partman-auto-lvm/guided_size string max
d-i partman-auto/choose_recipe select atomic
d-i partman/default_filesystem string xfs

d-i partman-partitioning/confirm_write_new_label 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-md/confirm boolean true
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true

# root account
d-i passwd/root-password password insecure
d-i passwd/root-password-again password insecure

# normal user account.
d-i passwd/user-fullname string Debian User
d-i passwd/username string debian
d-i passwd/user-password password insecure
d-i passwd/user-password-again password insecure
d-i user-setup/allow-password-weak boolean true
d-i user-setup/encrypt-home boolean false

# package selection
tasksel tasksel/first multiselect server
d-i pkgsel/include string openssh-server
d-i pkgsel/update-policy select none

popularity-contest popularity-contest/participate boolean false

d-i grub-installer/only_debian boolean true
d-i grub-installer/with_other_os boolean true

d-i grub-installer/bootdev  string /dev/vda

d-i debian-installer/add-kernel-opts console=tty0 console=ttyS0,115200 

d-i finish-install/reboot_in_progress note