do realease upgrade

[Nelson Santos]

No warning about space at / , but @ the moment of upgrade i was 5Gb free.

I was expected to end with (x)ubuntu 16 , but crash after calculating updates

Description: Ubuntu 14.04.5 LTS
Release: 14.04

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.13.0-100.147-generic 3.13.11-ckt39
Uname: Linux 3.13.0-100-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CrashDB: ubuntu
Date: Tue Nov 1 23:06:59 2016
InstallationDate: Installed on 2015-01-17 (654 days ago)
InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-11-01 (0 days ago)