unable to upgrade ubuntu (cur ver: 14.04)

[quin]

Trying to upgrade to 15.10 from 14.04, however, no matter how many different methods I try, I keep getting error codes, or it simply stops, and nothing changes.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:15.04.14.3
ProcVersionSignature: Ubuntu 3.16.0-60.80~14.04.1-generic 3.16.7-ckt22
Uname: Linux 3.16.0-60-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: amd64
CrashDB: ubuntu
Date: Sun Jan 24 14:25:56 2016
InstallationDate: Installed on 2015-11-26 (59 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to vivid on 2016-01-24 (0 days ago)
VarLogDistupgradeAptlog: Log time: 2016-01-24 14:25:55.229687