ubuntupreseedlvmbootswap

d-i partman-auto/purge_lvm_from_device boolean true
d-i partman-lvm/device_remove_lvm boolean true
d-i partman-lvm/device_remove_lvm_span boolean true
d-i partman-auto/disk string /dev/sda /dev/sdb
d-i partman-auto/method string lvm
d-i partman-auto/choose_recipe select recipe
# numbers are: minimummb priority maximummb
d-i partman-auto/expert_recipe string recipe :: \
    1 1 999999999 lvm $primary{ } method{ lvm } device{ /dev/sda } vg_name{ vg_sda } . \
    1 2 999999999 lvm $primary{ } method{ lvm } device{ /dev/sdb } vg_name{ vg_sdb } . \
    1 3 999999999 ext4 in_vg{ vg_sda } lv_name{ lv_slash } $lvmok{ } method{ format } format{ } use_filesystem{ } filesystem{ ext4 } mountpoint{ / } . \
    1 4 999999999 linux-swap in_vg{ vg_sdb } lv_name{ lv_swap } $lvmok{ } method{ swap } format{ } .
d-i partman-auto-lvm/no_boot boolean true
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
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/choose_partition select finish