[Bug 1880869] Re: Use persistent device name for vdevs

[Jean-Baptiste Lallement]

** Description changed:

  [Impact]
  
-  * An explanation of the effects of the bug on users and
+  * ZFS pools were created with device names such as /dev/sdX,
+ /dev/vdX,... However, these names are not stable and may change on each
+ reboot, leading to an unbootable system.
  
-  * 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.
+  * "zpool create" now uses persistent device names with PARTUUID
+ instead.
  
  [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.
+  * detailed instructions how to reproduce the bug
  
  [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.
+  * Likely low risk of regression. Worst case system doesn't boot after a
+ fresh installation which is better than today because the system may
+ boot but subsequent boots may not.
  
  [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
+ 
+  * Already shipped in GRoovy
  
  [Original Bug report]
  
  ZFS pools are currently created with device names such as /dev/sdX, /dev/vdX,... However, this name is not stable and may change on each reboot.
  "zpool create" must use persistent device names like UUID or PARTUUID instead.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
  Uname: Linux 5.4.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu36
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed May 27 13:52:13 2020
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- keyboard-configuration/layoutcode=fr keyboard-configuration/variantcode=oss
  InstallationDate: Installed on 2014-07-15 (2143 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520)
  SourcePackage: ubiquity
  UpgradeStatus: Upgraded to groovy on 2018-03-24 (794 days ago)

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https://bugs.launchpad.net/bugs/1880869

Title:
  Use persistent device name for vdevs

Status in ubiquity:
  Unknown
Status in ubiquity package in Ubuntu:
  Fix Released
Status in ubiquity source package in Focal:
  Triaged

Bug description:
  [Impact]

   * ZFS pools were created with device names such as /dev/sdX,
  /dev/vdX,... However, these names are not stable and may change on
  each reboot, leading to an unbootable system.

   * "zpool create" now uses persistent device names with PARTUUID
  instead.

  [Test Case]

   * detailed instructions how to reproduce the bug

  [Regression Potential]

   * Likely low risk of regression. Worst case system doesn't boot after
  a fresh installation which is better than today because the system may
  boot but subsequent boots may not.

  [Other Info]

   * Already shipped in GRoovy

  [Original Bug report]

  ZFS pools are currently created with device names such as /dev/sdX, /dev/vdX,... However, this name is not stable and may change on each reboot.
  "zpool create" must use persistent device names like UUID or PARTUUID instead.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
  Uname: Linux 5.4.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu36
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed May 27 13:52:13 2020
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- keyboard-configuration/layoutcode=fr keyboard-configuration/variantcode=oss
  InstallationDate: Installed on 2014-07-15 (2143 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520)
  SourcePackage: ubiquity
  UpgradeStatus: Upgraded to groovy on 2018-03-24 (794 days ago)

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