[Bug 1870810] Re: Grub update fails on zfs root drives after software install..

[Jean-Baptiste Lallement]

** Package changed: ubuntu-release-upgrader (Ubuntu) => grub2 (Ubuntu)

** Changed in: grub2 (Ubuntu)
   Importance: Undecided => High

** Changed in: grub2 (Ubuntu)
       Status: New => Confirmed

** Changed in: grub2 (Ubuntu)
     Assignee: (unassigned) => Jean-Baptiste Lallement (jibel)

** Also affects: grub2 (Ubuntu Focal)
   Importance: High
     Assignee: Jean-Baptiste Lallement (jibel)
       Status: Confirmed

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Title:
  Grub update fails on zfs root drives after software install..

Status in grub2 package in Ubuntu:
  Confirmed
Status in grub2 source package in Focal:
  Confirmed

Bug description:
  My grub.cfg file first menu entry works.  Used to refer to specific
  hard drives which will not work with ZFS root devices.

  It also loops and adds another "}" at line 183.

  Memtest again refers to /dev/sd<x> which I don't think will work with
  ZFS filesystems?

  See the two files attached.

  grub.cfg I modified to make it work to see first menu entry or
  linux*88 menu entry.

  The second one is the generated grub.cfg.new which is bad.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubuntu-release-upgrader-core 1:19.10.15.4
  ProcVersionSignature: Ubuntu 5.3.0-45.37-generic 5.3.18
  Uname: Linux 5.3.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu8.8
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr  4 10:39:58 2020
  InstallationDate: Installed on 2017-05-20 (1049 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to eoan on 2020-03-30 (4 days ago)
  VarLogDistupgradeTermlog:

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