[Bug 1896701] Re: [Errno 5] Input/output error

[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 23 08:38:32 ubuntu kernel: [  585.707226] SQUASHFS error: zlib decompression failed, data probably corrupt
Sep 23 08:38:32 ubuntu kernel: [  585.707230] SQUASHFS error: squashfs_read_data failed to read block 0xcdae75c

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 and
https://help.ubuntu.com/community/Installation/CDIntegrityCheck  (where
CD refers to your install media, be it CD, DVD, HDD, SSD, thumb-drive
etc)


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

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https://bugs.launchpad.net/bugs/1896701

Title:
   [Errno 5] Input/output error

Status in ubiquity package in Ubuntu:
  Invalid

Bug description:
  The installer encountered an error copying files to the hard disk:

  [Errno 5] Input/output error

  This is often due to a faulty CD/DVD disk or drive, or a faulty hard
  disk. It may help to clean the CD/DVD, to burn the CD/DVD at a lower
  speed, to clean the CD/DVD drive lens (cleaning kits are often
  available from electronics suppliers), to check whether the hard disk
  is old and in need of replacement, or to move the system to a cooler
  environment.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.63.11
  ProcVersionSignature: Ubuntu 4.15.0-112.113~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-112-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.24
  Architecture: amd64
  CasperVersion: 1.376.2
  Date: Tue Sep 22 21:40:59 2020
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd quiet splash --- maybe-ubiquity
  LiveMediaBuild: Ubuntu 16.04.7 LTS "Xenial Xerus" - Release amd64 (20200806)
  ProcEnviron:
   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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