~# DEBUG_UPDATE_MANAGER=1 do-release-upgrade -d
Checking for a new ubuntu release
MetaRelease.__init__() useDevel=True useProposed=False
/etc/update-manager/meta-release: http://changelogs.ubuntu.com/meta-release 
/etc/update-manager/meta-release: http://changelogs.ubuntu.com/meta-release-lts 
/etc/update-manager/meta-release: -development 
/etc/update-manager/meta-release: -proposed 
metarelease-uri: http://changelogs.ubuntu.com/meta-release-lts-development
MetaRelease.download()
reading file '/var/lib/update-manager/meta-release-lts-development'
have self.metarelease_information
MetaRelease.parse()
current dist name: 'natty'
found distro name: 'dapper'
found distro name: 'hardy'
found distro name: 'lucid'
found distro name: 'maverick'
current dist not found in meta-release file

No new release found