d-i partman-auto/disk string /dev/sda
d-i partman-auto/method string regular
+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
+
+##gpt
+d-i partman-basicfilesystems/choose_label string msdos
+d-i partman-basicfilesystems/default_label string msdos
+d-i partman-partitioning/choose_label string msdos
+d-i partman-partitioning/default_label string msdos
+d-i partman/choose_label string msdos
+d-i partman/default_label string msdos
+partman-partitioning partman-partitioning/choose_label select msdos
d-i partman-auto/expert_recipe string \
boot-root :: \