[Bug 2057837] Re: ZFS install doesn't create USERDATA datasets (noble daily)

[Dan Bungert]

** Changed in: subiquity
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/2057837

Title:
  ZFS install doesn't create USERDATA datasets (noble daily)

Status in subiquity:
  Fix Committed
Status in ubuntu-desktop-provision:
  New

Bug description:
  Installing Noble from today's daily (240313) with ZFS + encryption
  picked, in a VM. The install completes successfully, the system boots
  successfully, but the created datasets don't correspond to what is
  outlined in the testing guidelines. Notably the USERDATA datasets are
  missing.

  I'm not sure whether this is intended behavior, but it seems
  counterintuitive to me, so I suppose it's a bug. (At the very least it
  would annoy me to not have a separate dataset for my home dir...)

  Datasets as they are created:

  $ zfs mount | sort
  bpool/BOOT/ubuntu_ecyrg2        /boot
  rpool/ROOT/ubuntu_ecyrg2        /
  rpool/ROOT/ubuntu_ecyrg2        /snap
  rpool/ROOT/ubuntu_ecyrg2/srv    /srv
  rpool/ROOT/ubuntu_ecyrg2/usr/local  /usr/local
  rpool/ROOT/ubuntu_ecyrg2/var/games  /var/games
  rpool/ROOT/ubuntu_ecyrg2/var/lib/AccountsService  /var/lib/AccountsService
  rpool/ROOT/ubuntu_ecyrg2/var/lib/apt  /var/lib/apt
  rpool/ROOT/ubuntu_ecyrg2/var/lib/dpkg  /var/lib/dpkg
  rpool/ROOT/ubuntu_ecyrg2/var/lib/NetworkManager  /var/lib/NetworkManager
  rpool/ROOT/ubuntu_ecyrg2/var/lib  /var/lib
  rpool/ROOT/ubuntu_ecyrg2/var/log  /var/log
  rpool/ROOT/ubuntu_ecyrg2/var/mail  /var/mail
  rpool/ROOT/ubuntu_ecyrg2        /var/snap/firefox/common/host-hunspell
  rpool/ROOT/ubuntu_ecyrg2/var/snap  /var/snap
  rpool/ROOT/ubuntu_ecyrg2/var/spool  /var/spool
  rpool/ROOT/ubuntu_ecyrg2/var/www  /var/www

  $ zfs list
  NAME                                               USED  AVAIL  REFER  MOUNTPOINT
  bpool                                              171M  1.58G    96K  /boot
  bpool/BOOT                                         170M  1.58G    96K  none
  bpool/BOOT/ubuntu_ecyrg2                           170M  1.58G   170M  /boot
  rpool                                             4.15G  20.1G   192K  /
  rpool/ROOT                                        4.12G  20.1G   192K  none
  rpool/ROOT/ubuntu_ecyrg2                          4.12G  20.1G  2.90G  /
  rpool/ROOT/ubuntu_ecyrg2/srv                       192K  20.1G   192K  /srv
  rpool/ROOT/ubuntu_ecyrg2/usr                       656K  20.1G   192K  /usr
  rpool/ROOT/ubuntu_ecyrg2/usr/local                 464K  20.1G   464K  /usr/local
  rpool/ROOT/ubuntu_ecyrg2/var                      1.22G  20.1G   192K  /var
  rpool/ROOT/ubuntu_ecyrg2/var/games                 192K  20.1G   192K  /var/games
  rpool/ROOT/ubuntu_ecyrg2/var/lib                  1.22G  20.1G  1.09G  /var/lib
  rpool/ROOT/ubuntu_ecyrg2/var/lib/AccountsService   212K  20.1G   212K  /var/lib/AccountsService
  rpool/ROOT/ubuntu_ecyrg2/var/lib/NetworkManager    256K  20.1G   256K  /var/lib/NetworkManager
  rpool/ROOT/ubuntu_ecyrg2/var/lib/apt              76.2M  20.1G  76.2M  /var/lib/apt
  rpool/ROOT/ubuntu_ecyrg2/var/lib/dpkg             49.2M  20.1G  49.2M  /var/lib/dpkg
  rpool/ROOT/ubuntu_ecyrg2/var/log                  2.20M  20.1G  2.20M  /var/log
  rpool/ROOT/ubuntu_ecyrg2/var/mail                  192K  20.1G   192K  /var/mail
  rpool/ROOT/ubuntu_ecyrg2/var/snap                 2.62M  20.1G  2.62M  /var/snap
  rpool/ROOT/ubuntu_ecyrg2/var/spool                 276K  20.1G   276K  /var/spool
  rpool/ROOT/ubuntu_ecyrg2/var/www                   192K  20.1G   192K  /var/www
  rpool/keystore                                    22.5M  20.1G  16.5M  -

  Datasets should be:

  $ 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

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