python2.6-minimal update error

[feiy]

Binary package hint: python2.6-minimal

dist-upgrade from ubuntu 8.04 to jaunty:

some error :
Selecting previously deselected package python2.6-minimal.
(Reading database ... 22524 files and directories currently installed.)
Unpacking python2.6-minimal (from .../python2.6-minimal_2.6.1-1ubuntu8_i386.deb) ...
Setting up python2.6-minimal (2.6.1-1ubuntu8) ...
Linking and byte-compiling packages for runtime python2.6...
pycentral: pycentral rtinstall: installed runtime python2.6 not found
pycentral rtinstall: installed runtime python2.6 not found
dpkg: error processing python2.6-minimal (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 python2.6-minimal
E: Sub-process /usr/bin/dpkg returned an error code (1)

$sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libneon27 libvolume-id1
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  apt apt-utils aptitude iptables kbd libept0 libvolume-id1 libxapian15 python
  python-apt python-central python-gdbm python-minimal python2.6
  python2.6-minimal ubuntu-minimal ufw update-manager-core
Suggested packages:
  dpkg-dev apt-doc aptitude-doc-en aptitude-doc debtags xapian-tools
  python-doc python-tk python-profiler python-apt-dbg python-gtk2 python-vte
  python-gdbm-dbg python2.6-doc python2.6-profiler binutils binfmt-support
Recommended packages:
  libparse-debianchangelog-perl iso-codes update-motd
The following packages will be REMOVED:
  console-tools
The following NEW packages will be installed:
  kbd libept0 libvolume-id1 libxapian15 python python2.6 python2.6-minimal
The following packages will be upgraded:
  apt apt-utils aptitude iptables python-apt python-central python-gdbm
  python-minimal ubuntu-minimal ufw update-manager-core
11 upgraded, 7 newly installed, 1 to remove and 181 not upgraded.
Need to get 0B/9988kB of archives.
After this operation, 23.4MB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Preconfiguring packages ...
Selecting previously deselected package python2.6-minimal.
(Reading database ... 22479 files and directories currently installed.)
Unpacking python2.6-minimal (from .../python2.6-minimal_2.6.1-1ubuntu8_i386.deb) ...
Setting up python2.6-minimal (2.6.1-1ubuntu8) ...
Linking and byte-compiling packages for runtime python2.6...
pycentral: pycentral rtinstall: installed runtime python2.6 not found
pycentral rtinstall: installed runtime python2.6 not found
dpkg: error processing python2.6-minimal (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 python2.6-minimal
E: Sub-process /usr/bin/dpkg returned an error code (1)

$sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run `apt-get -f install' to correct these.
The following packages have unmet dependencies:
  alsa-utils: Depends: python but it is not installed
  command-not-found: Depends: python but it is not installed
  lsb-release: Depends: python but it is not installed
  python-apt: Depends: python (>= 2.4) but it is not installed
              Depends: python (< 2.6) but it is not installed
  python-central: Depends: python (>= 2.4.3-10) but it is not installed
  python-gdbm: Depends: python (>= 2.4) but it is not installed
               Depends: python (< 2.6) but it is not installed
  python-support: Depends: python (>= 2.3) but it is not installed
  ubuntu-minimal: Depends: python but it is not installed
  ufw: Depends: python (>= 2.5) but it is not installed
  update-manager-core: Depends: python (>= 2.4) but it is not installed
                       Depends: python (< 2.6) but it is not installed
E: Unmet dependencies. Try using -f.