[Bug 1874121] [NEW] I've tried to upgrade Ubuntu 16.04 to 18.04 from terminal but I couldn't do it. I have no problems with ppa, that doesn't apply in this case.

[Iván David Castañeda Balaguera]

Public bug reported:

I have no any ppa installed, then I don't  what is the issue.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.29
ProcVersionSignature: Ubuntu 4.15.0-96.97~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-96-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.23
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: GNOME-Flashback:Unity
Date: Tue Apr 21 12:47:05 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-10-12 (922 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2020-04-21 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade third-party-packages xenial

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https://bugs.launchpad.net/bugs/1874121

Title:
  I've tried to upgrade Ubuntu 16.04 to 18.04 from terminal but I
  couldn't do it. I have no problems with ppa, that doesn't apply in
  this case.

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

Bug description:
  I have no any ppa installed, then I don't  what is the issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.29
  ProcVersionSignature: Ubuntu 4.15.0-96.97~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-96-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Tue Apr 21 12:47:05 2020
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2017-10-12 (922 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2020-04-21 (0 days ago)
  VarLogDistupgradeTermlog:

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