[Bug 1867538] Re: ZFs installation fails with disk already in use (zfs over zfs)

[Jean-Baptiste Lallement]

** Summary changed:

- daily build failed install when using ZFS root on top of an existing ZFS root
+ ZFs installation fails with disk already in use (zfs over zfs)

** Changed in: ubiquity (Ubuntu)
       Status: New => Confirmed

** Changed in: ubiquity (Ubuntu)
   Importance: Undecided => High

** Also affects: ubiquity (Ubuntu Focal)
   Importance: High
       Status: Confirmed

** Changed in: ubiquity (Ubuntu Focal)
     Assignee: (unassigned) => Jean-Baptiste Lallement (jibel)

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https://bugs.launchpad.net/bugs/1867538

Title:
  ZFs installation fails with disk already in use (zfs over zfs)

Status in ubiquity package in Ubuntu:
  Confirmed
Status in ubiquity source package in Focal:
  Confirmed

Bug description:
  Test being done:
  Install Ubuntu 19.10 and update post reboot.
     During install select ZFS experimental option
  Install Ubuntu 20.10 (latest daily build as of 20200315)
     During install select ZFS experimental option
     The installed crashed at the screen asking for user's infos

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.6
  ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
  Uname: Linux 5.4.0-14-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu18
  Architecture: amd64
  CasperVersion: 1.441
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Mar 15 14:05:19 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200309)
  ProcEnviron:
   LANGUAGE=en_CA.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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