do-release-upgrade -p fail with no error

[Alexander]

when do-release-upgrade -p no error returned and then rollback to curent state

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.13.0-86.131-generic 3.13.11-ckt39
Uname: Linux 3.13.0-86-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.20
Architecture: amd64
CrashDB: ubuntu
Date: Tue May 24 23:43:32 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-08-20 (278 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=ru
 TERM=xterm
 PATH=(custom, no user)
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-05-24 (0 days ago)

[Alexander (stb117)]

im has remove i386 arch pkg, then update continue

[Brian Murray (brian-murray)]

Reviewing the files from your upgrade attempt you seem to have enabled a PPA that provides Xorg packages. This will prevent the upgrade as that PPA contains package version numbers greater than the release to which you are upgrading. You can revert the PPA by installing the ppa-purge package from the official Ubuntu archive and then running 'sudo ppa-purge oibaf'. After that you try upgrading and again and if it still fails open a new bug report. Thanks and good luck!