Installer fails when preseeding 'partman-partitioning/confirm_resize'

[Wright]

Hello,

I'm doing a preseed with the following value :
...
d-i partman-auto/init_automatically_partition select resize_use_free
d-i partman-partitionning/confirm_resize boolean true
...

When setting confirm_resize to 'true', installer begins an infinite loop. I think it's because of the following code (see more in /lib/partman/automatically_partition/10resize_use_free or in the attachment) :

=== modified file 'automatically_partition/resize_use_free/do_option'
db_set partman-partitioning/confirm_resize 'false'

This has been introduced to fix #LP 52830, https://bugs.launchpad.net/ubuntu/+source/partman-auto/+bug/52830).

Thank you

[Ubuntu Foundations Team Bug Bot (crichton)]

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[Mantas Kriaučiūnas (mantas)]

I can't force ubiquity to automatically resize existing partitions even when I write this line in preseed file:
d-i partman-auto/init_automatically_partition select resize_use_free

Could you attach your preseed file when installer resizes existing partition instead of creating new ones?

Wright (wright-gagelac) wrote:
> I'm doing a preseed with the following value :
> ...
> d-i partman-auto/init_automatically_partition select resize_use_free
> d-i partman-partitionning/confirm_resize boolean true
> ...
>
> When setting confirm_resize to 'true', installer begins an infinite loop.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Dakota Ryan Lambert (drlamb)]

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.

[Dakota Ryan Lambert (drlamb)]

For clarification, Ubuntu 18.04 runs into the same issue. Also, there's a typo in the above but the overall message is correct.

d-i partman-auto/automatically_partition *select* Guided - resize /dev/nvme0n1p4 and use freed space

[Jonathan (vervaeke-jonathan)]

Circumvented this issue by adding: partman-partitioning/new_size

d-i partman-partitioning/confirm_resize true
d-i partman-partitioning/new_size string max