[Bug 1892733] Re: grub installaion failed, then installer crashed (legacy)

[Norbert]

** Description changed:

  Using Ubuntu MATE 20.10 20200824, the problem with grub returned.
  This bug is about legacy.
+ 
+ ```
+ Unable to install GRUB in /dev/sda (as superuser)
+ 
+ Executing 'grub-install /dev/sda' failed
+ 
+ This is fatal error.
+ ```
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.9
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu44
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.452
  Date: Mon Aug 24 17:24:09 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 20.10 "Groovy Gorilla" - Alpha amd64 (20200824)
  ProcEnviron:
-  LANGUAGE=en_US.UTF-8
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  LC_NUMERIC=C.UTF-8
+  LANGUAGE=en_US.UTF-8
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

** Description changed:

  Using Ubuntu MATE 20.10 20200824, the problem with grub returned.
  This bug is about legacy.
  
  ```
- Unable to install GRUB in /dev/sda (as superuser)
+ Unable to install GRUB in /dev/vda (as superuser)
  
- Executing 'grub-install /dev/sda' failed
+ Executing 'grub-install /dev/vda' failed
  
  This is fatal error.
  ```
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.9
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu44
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.452
  Date: Mon Aug 24 17:24:09 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 20.10 "Groovy Gorilla" - Alpha amd64 (20200824)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

-- 
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https://bugs.launchpad.net/bugs/1892733

Title:
  grub installaion failed, then installer crashed (legacy)

Status in grub-installer package in Ubuntu:
  New
Status in ubiquity package in Ubuntu:
  New

Bug description:
  Using Ubuntu MATE 20.10 20200824, the problem with grub returned.
  This bug is about legacy. Happened on latest version of QuickEMU.

  ```
  Unable to install GRUB in /dev/vda (as superuser)

  Executing 'grub-install /dev/vda' failed

  This is fatal error.
  ```

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.9
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu44
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.452
  Date: Mon Aug 24 17:24:09 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 20.10 "Groovy Gorilla" - Alpha amd64 (20200824)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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