do-release-upgrade from 12.04 LTS to 12.10 fails

[Kevin Herrera]

root@dev:/etc/update-manager# cat release-upgrades
# Default behavior for the release upgrader.

[DEFAULT]
# Default prompting behavior, valid options:
#
# never - Never check for a new release.
# normal - Check to see if a new release is available. If more than one new
# release is found, the release upgrader will attempt to upgrade to
# the release that immediately succeeds the currently-running
# release.
# lts - Check to see if a new LTS release is available. The upgrader
# will attempt to upgrade to the first LTS release available after
# the currently-running one. Note that this option should not be
# used if the currently-running release is not itself an LTS
# release, since in that case the upgrader won't be able to
# determine if a newer release is available.
Prompt=normal # was "lts"
root@dev:/etc/update-manager# vi release-upgrades
root@dev:/etc/update-manager# clear
root@dev:/etc/update-manager# cd
root@dev:~# clear
root@dev:~# do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [198 B]
Get:2 Upgrade tool [1,198 kB]
Fetched 1,198 kB in 0s (0 B/s)
authenticate 'quantal.tar.gz' against 'quantal.tar.gz.gpg'
extracting 'quantal.tar.gz'

Err http://security.ubuntu.com quantal-security/restricted Translation-en

Get:78 http://us.archive.ubuntu.com quantal/multiverse Translation-en [100 kB]
Get:79 http://us.archive.ubuntu.com quantal/restricted Translation-en [2,575 B]
Get:80 http://us.archive.ubuntu.com quantal/universe Translation-en [3,648 kB]
Get:81 http://security.ubuntu.com quantal-security/main Translation-en [32.6 kB]
Get:82 http://security.ubuntu.com quantal-security/restricted Translation-en [20 B]
Get:83 http://us.archive.ubuntu.com quantal-updates/main Translation-en [81.0 kB]
Get:84 http://us.archive.ubuntu.com quantal-updates/multiverse Translation-en [4,499 B]
Get:85 http://us.archive.ubuntu.com quantal-updates/restricted Translation-en [635 B]
Get:86 http://us.archive.ubuntu.com quantal-updates/universe Translation-en [78.8 kB]
Get:87 http://us.archive.ubuntu.com quantal-backports/main Translation-en [14 B]
Get:88 http://us.archive.ubuntu.com quantal-backports/multiverse Translation-en [594 B]
Get:89 http://us.archive.ubuntu.com quantal-backports/restricted Translation-en [14 B]
Get:90 http://us.archive.ubuntu.com quantal-backports/universe Translation-en [5,542 B]
Fetched 25.4 MB in 6s (335 kB/s)

Checking package manager
Reading package lists... Done

A fatal error occurred

Please report this as a bug and include the files
/var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log in
your report. The upgrade has aborted.
Your original sources.list was saved in
/etc/apt/sources.list.distUpgrade.

Traceback (most recent call last):

File "/tmp/update-manager-5r4BEl/quantal", line 10, in <module>
sys.exit(main())

File "/tmp/update-manager-5r4BEl/DistUpgrade/DistUpgradeMain.py",
line 240, in main
if app.run():

File
"/tmp/update-manager-5r4BEl/DistUpgrade/DistUpgradeController.py",
line 1764, in run
return self.fullUpgrade()

File
"/tmp/update-manager-5r4BEl/DistUpgrade/DistUpgradeController.py",
line 1681, in fullUpgrade
self.openCache(restore_sources_list_on_fail=True)

File
"/tmp/update-manager-5r4BEl/DistUpgrade/DistUpgradeController.py",
line 207, in openCache
return self._openCache(lock)

File
"/tmp/update-manager-5r4BEl/DistUpgrade/DistUpgradeController.py",
line 235, in _openCache
lock)

File "/tmp/update-manager-5r4BEl/DistUpgrade/DistUpgradeCache.py",
line 94, in __init__
apt.Cache.__init__(self, progress)

File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 102, in
__init__
self.open(progress)

File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 145, in
open
self._cache = apt_pkg.Cache(progress)

SystemError: E:Encountered a section with no Package: header,
E:Problem with MergeList
/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_quantal-security_main_i18n_Translation-en,
E:The package lists or status file could not be parsed or opened.
=== Command detached from window (Mon Jan 14 12:45:15 2013) ===
=== Command terminated with exit status 1 (Mon Jan 14 12:45:15 2013) ===