no USERDATA space under rpool when installing with ZFS

[Tim Andersson]

I'm not sure if this is a bug or if we need to update the isotracker test case for this with the new installer, but the test case has this command and output:

$ zfs mount | sort
bpool/BOOT/ubuntu_UUID /boot
rpool/ROOT/ubuntu_UUID /
rpool/ROOT/ubuntu_UUID/srv /srv
rpool/ROOT/ubuntu_UUID/usr/local /usr/local
rpool/ROOT/ubuntu_UUID/var/games /var/games
rpool/ROOT/ubuntu_UUID/var/lib/AccountsService /var/lib/AccountsService
rpool/ROOT/ubuntu_UUID/var/lib/apt /var/lib/apt
rpool/ROOT/ubuntu_UUID/var/lib/dpkg /var/lib/dpkg
rpool/ROOT/ubuntu_UUID/var/lib/NetworkManager /var/lib/NetworkManager
rpool/ROOT/ubuntu_UUID/var/lib /var/lib
rpool/ROOT/ubuntu_UUID/var/log /var/log
rpool/ROOT/ubuntu_UUID/var/mail /var/mail
rpool/ROOT/ubuntu_UUID/var/snap /var/snap
rpool/ROOT/ubuntu_UUID/var/spool /var/spool
rpool/ROOT/ubuntu_UUID/var/www /var/www
rpool/USERDATA/root_0y7dio /root
rpool/USERDATA/u_0y7dio /home/u

However after doing a zfs install with the new installer, I get this:

ubuntu@ubuntu:~$ zfs mount | sort
bpool/BOOT/ubuntu_srikxd /boot
rpool/ROOT/ubuntu_srikxd /
rpool/ROOT/ubuntu_srikxd /snap
rpool/ROOT/ubuntu_srikxd/srv /srv
rpool/ROOT/ubuntu_srikxd/usr/local /usr/local
rpool/ROOT/ubuntu_srikxd/var/games /var/games
rpool/ROOT/ubuntu_srikxd/var/lib/AccountsService /var/lib/AccountsService
rpool/ROOT/ubuntu_srikxd/var/lib/apt /var/lib/apt
rpool/ROOT/ubuntu_srikxd/var/lib/dpkg /var/lib/dpkg
rpool/ROOT/ubuntu_srikxd/var/lib/NetworkManager /var/lib/NetworkManager
rpool/ROOT/ubuntu_srikxd/var/lib /var/lib
rpool/ROOT/ubuntu_srikxd/var/log /var/log
rpool/ROOT/ubuntu_srikxd/var/mail /var/mail
rpool/ROOT/ubuntu_srikxd /var/snap/firefox/common/host-hunspell
rpool/ROOT/ubuntu_srikxd/var/snap /var/snap
rpool/ROOT/ubuntu_srikxd/var/spool /var/spool
rpool/ROOT/ubuntu_srikxd/var/www /var/www

rpool has no USERDATA

I've been doing install tests this week with the legacy installer too and this is not the case for the legacy installer.

Again I'm not exactly sure if this is intended behaviour but if it is these testcases need updating:
http://iso.qa.ubuntu.com/qatracker/milestones/446/builds/287565/testcases/1784/results

http://iso.qa.ubuntu.com/qatracker/milestones/446/builds/287581/testcases/1790/results
The second testcase is for the legacy test suite, however presumably for 24.04 zfs+encryption will be on offer in the new installer, and this testcase will also need updating as it mounts
rpool/USERDATA/user_hash

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: ubuntu-desktop-installer (not installed)
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.27.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 28 14:30:57 2023
InstallationDate: Installed on 2023-09-28 (0 days ago)
InstallationMedia: Ubuntu 23.10 "Mantic Minotaur" - Daily amd64 (20230928)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: ubuntu-desktop-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Dan Bungert (dbungert)]

Partially implemented per LP: #2057837. Let's merge to that bug since that's the one being actively updated. Thanks for the report!