Not Able to upgrade from 12.10 to 13.04 - cache not open

[Op4Mox]

cannot upgrade from 12.10 to 13.04

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: ubuntu-release-upgrader-core 1:0.190.6
ProcVersionSignature: Ubuntu 3.5.0-27.45-generic 3.5.7.7
Uname: Linux 3.5.0-27-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Sun Mar 24 21:32:43 2013
InstallationDate: Installed on 2012-09-24 (181 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to quantal on 2013-03-24 (0 days ago)

[Sasa Paporovic (melchiaros)]

Sorry Joeri,

there is no cause to set the status of the report to incomplete.

When there are reasons it is common to write them down, for the next who comes here.

[Sasa Paporovic (melchiaros)]

Hi Op4Mox,

I have just looked into the logs.

There is documented an error in VarLogDistupgradeMainlog.txt:

2013-03-24 21:32:42,333 ERROR openCache() failed: 'E:Tiedostoa /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_quantal-backports_multiverse_binary-amd64_Packages ei voitu avata -

.
..
... and so on

[Sasa Paporovic (melchiaros)]

This closes with:

2013-03-24 21:32:42,333 ERROR self.prepared() failed

[Sasa Paporovic (melchiaros)]

So, this could be caused by a other application with apt access that runs at the same time(like automatik security packages installation, update packes list through update-manager, a other terminal with a running apt task, something more....)

Could you agree with this?

If the written above is correct, than y simple retest would make sense here.

It is unlikely that a second time a second apt process is runnig while you start the relase upgrade.

I give it a 99% that it works on a retest.

In meantime I set this back to incomplete. If you have done, please set the status back to new.

Thank you so far and sorry for the unconvinience.

melchiaros