[Bug 1918892] [NEW] near the end of installation the installer displayed the message "Executing 'grub-install/dev/sda' failed. This is a fatal error."

[Dan Tay]

*** This bug is a security vulnerability ***

Private security bug reported:

There should be some sort of system log attached, as a window popped out
and asked me if I want to upload the report. I tried to install Ubuntu
20.10.

On the same system I had successfully installed Kubuntu 18.04, Mate
18.04, Xubuntu 18.04, and Ubuntu 16.04 (this last one formatted for
Ubuntu 20.10).

Else:

"Please attach the files /var/log/syslog and /var/log/partman to your
bug. You need to attach these from the running installer, after you
encounter the problem you are reporting, but before you reboot"

I don't know how can I access the filesystem from the installer (I
started "Install Ubuntu" not "Try Ubuntu").

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: ubiquity 20.10.13
ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
Uname: Linux 5.8.0-25-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.455
CurrentDesktop: ubuntu:GNOME
Date: Fri Mar 12 09:52:04 2021
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 LC_NUMERIC=C.UTF-8
RebootRequiredPkgs:
 linux-image-5.8.0-25-generic
 linux-base
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy ubiquity-20.10.13 ubuntu

** Information type changed from Public to Private Security

** Description changed:

  There should be some sort of system log attached, as a window popped out
  and asked me if I want to upload the report. I tried to install Ubuntu
  20.10.
+ 
+ On the same system I had successfully installed Kubuntu 18.04, Mate
+ 18.04, Xubuntu 18.04, and Ubuntu 16.04 (this last one formatted for
+ Ubuntu 20.10).
  
  Else:
  
  "Please attach the files /var/log/syslog and /var/log/partman to your
  bug. You need to attach these from the running installer, after you
  encounter the problem you are reporting, but before you reboot"
  
  I don't know how can I access the filesystem from the installer (I
  started "Install Ubuntu" not "Try Ubuntu").
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.13
  ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
  Uname: Linux 5.8.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Mar 12 09:52:04 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  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
  RebootRequiredPkgs:
-  linux-image-5.8.0-25-generic
-  linux-base
+  linux-image-5.8.0-25-generic
+  linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1918892

Title:
  near the end of installation the installer displayed the message
  "Executing 'grub-install/dev/sda' failed. This is a fatal error."

Status in ubiquity package in Ubuntu:
  New

Bug description:
  There should be some sort of system log attached, as a window popped
  out and asked me if I want to upload the report. I tried to install
  Ubuntu 20.10.

  On the same system I had successfully installed Kubuntu 18.04, Mate
  18.04, Xubuntu 18.04, and Ubuntu 16.04 (this last one formatted for
  Ubuntu 20.10).

  Else:

  "Please attach the files /var/log/syslog and /var/log/partman to your
  bug. You need to attach these from the running installer, after you
  encounter the problem you are reporting, but before you reboot"

  I don't know how can I access the filesystem from the installer (I
  started "Install Ubuntu" not "Try Ubuntu").

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.13
  ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
  Uname: Linux 5.8.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Mar 12 09:52:04 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  RebootRequiredPkgs:
   linux-image-5.8.0-25-generic
   linux-base
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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