[Bug 1471529] [NEW] do-release-upgrade fail

[Yu - Sian , Liu]

Public bug reported:

The bug occur when upgrade from old release.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:0.220.7
ProcVersionSignature: Ubuntu 3.13.0-55.94-generic 3.13.11-ckt20
Uname: Linux 3.13.0-55-generic i686
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: i386
CrashDB: ubuntu
Date: Sun Jul  5 18:34:22 2015
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to vivid on 2015-07-05 (0 days ago)
mtime.conffile..etc.update.manager.release.upgrades: 2015-07-05T16:57:26.086896

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


** Tags: apport-bug dist-upgrade i386 vivid

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https://bugs.launchpad.net/bugs/1471529

Title:
  do-release-upgrade fail

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

Bug description:
  The bug occur when upgrade from old release.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: ubuntu-release-upgrader-core 1:0.220.7
  ProcVersionSignature: Ubuntu 3.13.0-55.94-generic 3.13.11-ckt20
  Uname: Linux 3.13.0-55-generic i686
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: i386
  CrashDB: ubuntu
  Date: Sun Jul  5 18:34:22 2015
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: Upgraded to vivid on 2015-07-05 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2015-07-05T16:57:26.086896

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