[Bug 1856810] Re: Addendum to "Installation stopping due to an 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 :-

Dec 18 05:49:15 ubuntu kernel: [  253.004994] SQUASHFS error: zlib decompression failed, data probably corrupt
Dec 18 05:49:15 ubuntu kernel: [  253.005001] SQUASHFS error: squashfs_read_data failed to read block 0x12d4da15

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

(Note:  CD refers to your install media; it was this device that is bad,
or was badly written, or contained the invalid/corrupt data)

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

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https://bugs.launchpad.net/bugs/1856810

Title:
  Addendum to "Installation stopping due to an error.

Status in ubiquity package in Ubuntu:
  Invalid

Bug description:
  Sending a screenshot of issue that may help.

  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: Wed Dec 18 00:50:31 2019
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed only-ubiquity initrd=/casper/initrd quiet splash ---  nomodeset
  LiveMediaBuild: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  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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