[Bug 1724417] Re: grub-install /dev/dm-0 fails for "Erase entire disk" install type

[Daniel van Vugt]

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Ubuntu 17.10 (artful) reached end-of-life on July 19, 2018.

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** Changed in: ubiquity (Ubuntu)
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1724417

Title:
  grub-install /dev/dm-0 fails for "Erase entire disk" install type

Status in Release Notes for Ubuntu:
  Fix Released
Status in ubiquity package in Ubuntu:
  Won't Fix

Bug description:
  This should not be happening at all. Install fails with a grub-install
  error; failing to find /dev/dm-0. Interestingly, I picked "Erase
  entire disk", for a system (Dell Vostro V130) that was previously
  installed with Xubuntu. Given that "Erase entire disk" should just
  wipe all partitions and create new ones, none of which using LVM
  (because that was not picked at all, neither LVM not LVM with crypto);
  it should not be trying to use dm-0 at all.

  There are other errors earlier on with ubiquity failing to properly
  recognize the type of filesystem.

  Test Case
  1. Install a system using LVM (not encryted) and proceed with the installation
  2. Install a second time on the same system but this time select "Erase entire disk"

  Expected result
  Second installation is successful

  Actual result
  grub-installer fails because it tries to install grub on /dev/dm-0 

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: ubiquity 17.10.10
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.387
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct 17 21:14:21 2017
  LiveMediaBuild: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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