[Bug 1816283] Re: Ubuntu 18.04 ISO downloaded2019-02-16 Failed to remove a part of itself,

[L. P. Luigi Espenlaub]

Went to 
https://tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#3
to check the ISO check-sum to see if the download was corrupted 
or if
I had burned it to a faulty DVD.
However I could find no workable answer to this question.

how to download SHA256SUMS from http://releases.ubuntu.com/bionic/?

Seems the most simple question, however all I get at Ask.Ubuntu, stack
exchange and gethub is theory others problems and complications.

 http://releases.ubuntu.com/bionic/  does not offer a copy or download option for the files. 
Other click on the file and all I get in Firefox is link choices. I have been warned in one of those sources that copying and pasting contents into a file I create will fowl up the process.

Not being able to successfully download the SHA256SUMS means I only
receive the following when attempting to confirm validity of the ISO

gpg: can't open `SHA256SUMS.gpg'
gpg: verify signatures failed: file open error

All I can do is possibly waste another DVD downloading a valid? ISO with
a bug in it, in doing a new download, but that is the only course I see
for now with the gpg check-sums kerfuffle at:

https://github.com/canonical-websites/tutorials.ubuntu.com/issues/new
and
https://github.com/canonical-websites/tutorials.ubuntu.com/issues/790

Will update with the results of a new ISO and DVD install.

** Bug watch added: github.com/canonical-websites/tutorials.ubuntu.com/issues #790
   https://github.com/canonical-websites/tutorials.ubuntu.com/issues/790

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https://bugs.launchpad.net/bugs/1816283

Title:
  Ubuntu 18.04 ISO downloaded2019-02-16 Failed to remove a part of
  itself,

Status in ubiquity package in Ubuntu:
  New

Bug description:
  file:///var/log/syslog
  file:///var/log/partman
  file:///var/log/installer/debug
  file:///var/log/installer/version

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.12
  ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20
  Uname: Linux 4.18.0-15-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  CasperVersion: 1.394
  Date: Sun Feb 17 02:37:32 2019
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd quiet splash --- maybe-ubiquity
  LiveMediaBuild: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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