[Bug 1893750] Re: Ubuntu 20.04 crashes each time i try to install on virtualbox

[Chris Guiver]

Thank you for taking the time to report this issue and helping to make
Ubuntu better.

This package failure looks like it was caused by bad ISO download,
corrupted install media, or device failure. eg. look in the logs and
you'll see messages like these :-

Sep  1 08:15:50 ubuntu kernel: [  218.797578] SQUASHFS error: zlib decompression failed, data probably corrupt
Sep  1 08:15:50 ubuntu kernel: [  218.797582] SQUASHFS error: squashfs_read_data failed to read block 0x482dc05e

Examining the information you have given us, this does not appear to be
a useful bug report so I am closing it, as it appears to be a bad ISO or
faulty device (inc. bad write-to-device). If you believe I'm in error,
please leave a comment explaining why and change the status back to
'New'. I suggest you verify your ISO download, and use the 'check disc
for defects' option to validate your media before install to ensure a
good download & write.

Possibly useful : https://tutorials.ubuntu.com/tutorial/tutorial-how-to-
verify-ubuntu#0

Your pre-run scan reports FAIL; this is a result of the problem the
integrity check detected.

** Changed in: ubiquity (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1893750

Title:
  Ubuntu 20.04 crashes each time i try to install on virtualbox

Status in ubiquity package in Ubuntu:
  Invalid

Bug description:
  Ubuntu 20.04 crashes each time I try to install on virtualbox. This
  bug continues even after I have done 2-3 reinstalls of the ubuntu
  20.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15.2
  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: 2.20.11-0ubuntu27.4
  Architecture: amd64
  CasperMD5CheckMismatches: ./casper/filesystem.squashfs ./casper/initrd
  CasperMD5CheckResult: fail
  CasperVersion: 1.445.1
  Date: Tue Sep  1 09:52:08 2020
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed initrd=/casper/initrd quiet splash --- maybe-ubiquity
  LiveMediaBuild: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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