[Bug 1881055] Re: Error reading medium

[Chris Guiver]

*** This bug is a duplicate of bug 1874662 ***
    https://bugs.launchpad.net/bugs/1874662

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 :-

May 28 02:41:35 ubuntu kernel: [  148.018755] SQUASHFS error: zlib decompression failed, data probably corrupt
May 28 02:41:35 ubuntu kernel: [  148.018764] SQUASHFS error: squashfs_read_data failed to read block 0x524c0

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 note the validation
of your ISO before install to ensure a good download & write.

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


** This bug has been marked a duplicate of bug 1874662
   Corrupted installation medium

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https://bugs.launchpad.net/bugs/1881055

Title:
  Error reading medium

Status in ubiquity package in Ubuntu:
  New

Bug description:
  I downloaded the iso using a torrent and as I started the installation
  it crashed with an error saying that the medium is broken.

  The USB stick used as an installation media works just fine with
  Windows 10 and Mageia (RPM based distro), but burning any iso of
  Ubuntu over 16.04 recreates this crash.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubiquity 19.10.21
  ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
  Uname: Linux 5.3.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.427
  CurrentDesktop: ubuntu:GNOME
  Date: Thu May 28 04:41:47 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  ProcEnviron:
   LANGUAGE=sv_SE.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=sv_SE.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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