[Bug 1828589] Re: can not upgrade to ubuntu 19

[Brian Murray]

There is something wrong with your network configuration as you cannot
reach the Ubuntu archive. From VarLogDistupgradeMainlog.txt:

2019-05-10 17:42:04,506 DEBUG verifySourcesListEntry: deb http://archive.ubuntu.com/ubuntu disco main restricted
2019-05-10 17:42:04,506 DEBUG url_downloadable: http://archive.ubuntu.com/ubuntu/dists/disco/Release
2019-05-10 17:42:04,506 DEBUG s='http' n='archive.ubuntu.com' p='/ubuntu/dists/disco/Release' q='' f=''
2019-05-10 17:42:04,511 DEBUG error from httplib: '<urlopen error [Errno 101] Network is unreachable>'
2019-05-10 17:42:04,511 DEBUG entry '# deb http://archive.ubuntu.com/ubuntu cosmic main restricted' was disabled (no Release file)

You'll need to resolve this issue and try the upgrade again.

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

** Summary changed:

- can not upgrade to ubuntu 19
+ can not upgrade to ubuntu 19 due to a network issue

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https://bugs.launchpad.net/bugs/1828589

Title:
  can not upgrade to ubuntu 19 due to a network issue

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

Bug description:
  Invalid package information

  After updating your package information, the essential package 
  'ubuntu-minimal' could not be located. This may be because you have 
  no official mirrors listed in your software sources, or because of 
  excessive load on the mirror you are using. See /etc/apt/sources.list 
  for the current list of configured software sources. 
  In the case of an overloaded mirror, you may want to try the upgrade 
  again later.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubuntu-release-upgrader-core 1:18.10.11.7 [origin: unknown]
  ProcVersionSignature: Ubuntu 4.18.0-19.20-generic 4.18.20
  Uname: Linux 4.18.0-19-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13.3
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri May 10 17:42:27 2019
  InstallationDate: Installed on 2018-10-31 (191 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to cosmic on 2019-05-10 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2019-05-10 17:41:47.979439
   Log time: 2019-05-10 17:41:54.243232
   Log time: 2019-05-10 17:42:26.658016
   Log time: 2019-05-10 17:42:29.529516
  mtime.conffile..etc.update-manager.release-upgrades: 2019-05-08T19:22:41.994898

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