[Bug 1821422] Re: Unable to reinstall Ubuntu. Want to downgrade to 18.04.2

[Ubuntu Foundations Team Bug Bot]

** Tags added: bionic2cosmic

** Tags added: third-party-packages

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https://bugs.launchpad.net/bugs/1821422

Title:
  Unable to reinstall Ubuntu. Want to downgrade to 18.04.2

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  My OS seems to be, for lack of a better way of putting it,
  "disintegrating."  Every ten minutes, something else "fails."  I am
  trying to do a clean install of 18.04.2, despite the fact that I was
  running 18.10, but I cannot get my system to boot from USB and I do
  not have blank DVDs to make a bootable one.  I have tried F12, F10, F2
  and every combination thereof over the last several hours and,
  occasionally I get a long flurry of tiny white print on a black screen
  with the word "failed" appearing frequently but it's too fast for me
  to read.  When it comes to a stop, it is prompting me to enter my p/w.
  When I do, the system boots more or less as normal.  However, when I
  try to update or upgrade I get a message that some file or other is
  "badly corrupted" or something like that and I must use the RESUME
  something to get it to do something or other.  I have only been only
  Linux for less than 2 weeks and I haven't the faintest idea what is
  going on.  I really need help. I have backed up everything and just
  want to completely reinstall from the ground up but cannot.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubuntu-release-upgrader-core 1:18.10.11.5
  ProcVersionSignature: Ubuntu 4.18.0-17.18-generic 4.18.20
  Uname: Linux 4.18.0-17-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13.2
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Mar 22 19:41:03 2019
  InstallationDate: Installed on 2019-02-23 (27 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to cosmic on 2019-03-14 (8 days ago)
  VarLogDistupgradeTermlog:
   
  modified.conffile..etc.default.apport:
   # set this to 0 to disable apport, or to 1 to enable it
   # you can temporarily override this with
   # sudo service apport start force_start=1
   enabled=0
  mtime.conffile..etc.default.apport: 2019-03-08T05:25:07.116686

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