Comment 5 for bug 1275740

I'm currently attempting to dualboot Ubuntu 18.10 with Windows 10 using a preseed. The windows environment is loaded via task sequence and leaves 50% of the disk as a blank partition (partition 4). I'm then attempting to take that partition, delete/resize it, and install Ubuntu according to my encrypted lvm partition map. Upon setting:

d-i partman-partitionning/confirm_resize boolean true
d-i partman-auto/disk string /dev/nvme0n1p4
d-i partman-auto/automatically_partition string Guided - resize /dev/nvme0n1p4 and use freed space
d-i partman-auto/method string crypto

I experience the aforementioned loop.

Other solutions attempted:

I'm also playing with the idea of having the 4th partition be just empty space but upon setting
d-i partman-auto/init_automatically_partition select biggest_free

d-i partman-auto/method string crypto is ignored so while the partitions get created according to my recipe, they don't get encrypted.