[Bug 1485216] Re: I've upgraded my 14.04 LTS to 14.10 and now I don't have updates, can't upgrade to 15.04.

[dino99]

Only hold the genuine repos (disable ppas & third party(ies) sources) into /etc/apt/sources.list.
Then set the archives to point to 'vivid', and save & close sources.list.
You are now ready  to clean the system with: clean, autoclean, autoremove; and update/upgrade from the package manager.
Start upgrading in that order: tools (apt, dpkg,...), languages (gcc, python,...), libs then apps
If you meet an upgrading package issue, then try upgrading the others, you will be able to upgrade it later.
When you have upgraded all the packages, then start again to clean the system (to remove now unneeded lib/package) 

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

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https://bugs.launchpad.net/bugs/1485216

Title:
  I've upgraded my 14.04 LTS to 14.10 and now I don't have updates,
  can't upgrade to 15.04.

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

Bug description:
  When I restared my OS there was an info about a bug regarded to some
  Intel graphics stuff. Should I maybe just unistall it? I don't have
  unsupported drivers I suppose or I just don't remember.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubuntu-release-upgrader-core 1:14.10.10
  ProcVersionSignature: Ubuntu 3.16.0-44.59-generic 3.16.7-ckt14
  Uname: Linux 3.16.0-44-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.5
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Sat Aug 15 16:06:59 2015
  InstallationDate: Installed on 2014-10-23 (295 days ago)
  InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to utopic on 2015-08-15 (0 days ago)
  VarLogDistupgradeTermlog:

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