[Bug 1959442] [NEW] ubuntu 21.10 fresh install with ZFS ecrypted installation boot hangs

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Hello! 
as I also ask here https://askubuntu.com/questions/1389809/fresh-install-of-ubuntu-21-10-with-zfs-boot-drive-encryption-hangs-on-reboot 

i'm trying to install ubuntu 21.10 on a new workstation on its own SSD,
(a Ryzen 9 - 16 core cpu, x570 Asus mother board, etc), and i'm seeing a
very frustrating problem that only happens when I install ZFS with
encryption enabled via the default installer. Frustratingly, theres no
such problem with just doing a zfs install without encryption.

after i do the install via the live cd gui tool, i'm able to reboot and
login into it the first time, with  the whole "decrypt drive" step
(albeit zfs flavored) then user login. But after that first time, the
next reboot hangs after the disk decryption step where it says
"cryptsetup: keystore-rpool setup successfully"

any wisdom on how to debug this or avoidthis problem while still having
a reliable file system that supports encryption? :)


also it seems like this is a very real bug, but i cant figure out how to report this to the issue tracker

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
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ubuntu 21.10 fresh install with ZFS ecrypted installation boot hangs
https://bugs.launchpad.net/bugs/1959442
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