d-i preseed/include string ../ubuntu/preseed.cfg

d-i preseed/late_command string                                                   \
        echo 'Defaults:vagrant !requiretty' > /target/etc/sudoers.d/vagrant;      \
        echo 'vagrant ALL=(ALL) NOPASSWD: ALL' >> /target/etc/sudoers.d/vagrant;  \
        chmod 440 /target/etc/sudoers.d/vagrant