[Bug 1875045] Re: Ubiquity 20.04 exports existing ZFS pools

[Dimitri John Ledkov]

** Description changed:

+ [Impact]
+ 
+  * An explanation of the effects of the bug on users and
+ 
+  * justification for backporting the fix to the stable release.
+ 
+  * In addition, it is helpful, but not required, to include an
+    explanation of how the upload fixes this bug.
+ 
+ [Test Case]
+ 
+  * detailed instructions how to reproduce the bug
+ 
+  * these should allow someone who is not familiar with the affected
+    package to reproduce the bug and verify that the updated package fixes
+    the problem.
+ 
+ [Regression Potential]
+ 
+  * discussion of how regressions are most likely to manifest as a result
+ of this change.
+ 
+  * It is assumed that any SRU candidate patch is well-tested before
+    upload and has a low overall risk of regression, but it's important
+    to make the effort to think about what ''could'' happen in the
+    event of a regression.
+ 
+  * This both shows the SRU team that the risks have been considered,
+    and provides guidance to testers in regression-testing the SRU.
+ 
+ [Other Info]
+  
+  * Anything else you think is useful to include
+  * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board
+  * and address these questions in advance
+ 
+ ===
+ 
  For unclear reasons (18.04 didn't have this issue), Ubiquity on 20.04
  exports existing ZFS pools, (very) shortly after execution.
  
  To repeat (assumes a `/dev/sda` disk):
  
  - start a 20.04 Ubuntu Desktop live media
  - open a terminal
  - create a zfs pool: `zpool create test /dev/sda`
  - verify that it's been created: `zpool list`
  - launch ubiquity: `ubiquity`
  - open a separate terminal
  - list the ZFS pools: `zpool list`
  
  no pools are now listed.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckMismatches: ./casper/vmlinuz
  CasperMD5CheckResult: skip
  CasperVersion: 1.445
  CurrentDesktop: MATE
  Date: Sat Apr 25 15:21:25 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1875045

Title:
  Ubiquity 20.04 exports existing ZFS pools

Status in ubiquity package in Ubuntu:
  Fix Released

Bug description:
  [Impact]

   * An explanation of the effects of the bug on users and

   * justification for backporting the fix to the stable release.

   * In addition, it is helpful, but not required, to include an
     explanation of how the upload fixes this bug.

  [Test Case]

   * detailed instructions how to reproduce the bug

   * these should allow someone who is not familiar with the affected
     package to reproduce the bug and verify that the updated package fixes
     the problem.

  [Regression Potential]

   * discussion of how regressions are most likely to manifest as a
  result of this change.

   * It is assumed that any SRU candidate patch is well-tested before
     upload and has a low overall risk of regression, but it's important
     to make the effort to think about what ''could'' happen in the
     event of a regression.

   * This both shows the SRU team that the risks have been considered,
     and provides guidance to testers in regression-testing the SRU.

  [Other Info]
   
   * Anything else you think is useful to include
   * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board
   * and address these questions in advance

  ===

  For unclear reasons (18.04 didn't have this issue), Ubiquity on 20.04
  exports existing ZFS pools, (very) shortly after execution.

  To repeat (assumes a `/dev/sda` disk):

  - start a 20.04 Ubuntu Desktop live media
  - open a terminal
  - create a zfs pool: `zpool create test /dev/sda`
  - verify that it's been created: `zpool list`
  - launch ubiquity: `ubiquity`
  - open a separate terminal
  - list the ZFS pools: `zpool list`

  no pools are now listed.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckMismatches: ./casper/vmlinuz
  CasperMD5CheckResult: skip
  CasperVersion: 1.445
  CurrentDesktop: MATE
  Date: Sat Apr 25 15:21:25 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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