d-i debian-installer/locale string en_US
d-i debian-installer/language string en
d-i debian-installer/country EN

d-i pkgsel/install-language-support boolean false

d-i debian-installer/framebuffer boolean false
d-i debconf/frontend select noninteractive
d-i base-installer/kernel/override-image string linux-server
d-i clock-setup/utc boolean true
d-i clock-setup/utc-auto boolean true
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 netcfg/get_domain string unassigned-domain
d-i netcfg/get_hostname string unassigned-hostname

d-i partman-auto/disk string /dev/sda /dev/vda
d-i partman-auto/method string regular
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 partman-basicfilesystems/no_swap boolean false
d-i partman-auto/choose_recipe select boot-root

d-i partman-auto/expert_recipe string                   \
    boot-root ::                                        \
        512 512 -1 ext4                                 \
                $primary{ } $bootable{ }                \
                method{ format } format{ }              \
                use_filesystem{ } filesystem{ ext4 }    \
                mountpoint{ / }                         \
                options/noatime{ noatime }              \
        .                                               \

d-i pkgsel/include string openssh-server
d-i pkgsel/install-language-support boolean false
d-i pkgsel/update-policy select unattended-upgrades
popularity-contest popularity-contest/participate boolean false

d-i pkgsel/upgrade select none

d-i time/zone string UTC
d-i passwd/root-login boolean true
d-i passwd/make-user boolean false
d-i openssh-server/permit-root-login boolean true
d-i user-setup/allow-password-weak boolean true
d-i user-setup/encrypt-home boolean false
tasksel tasksel/first multiselect minimal, ssh-server, openssh-server

d-i preseed/late_command string \
    in-target sed -i 's/PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config