Having problem with package manager

samsung@ubuntu:~$ sudo fuser -vvv /var/lib/dpkg/lock
[sudo] password for samsung:
samsung@ubuntu:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"
samsung@ubuntu:~$ uname -a
Linux ubuntu 3.0.0-16-generic #28-Ubuntu SMP Fri Jan 27 17:50:54 UTC 2012 i686 i686 i386 GNU/Linux
samsung@ubuntu:~$ sudo rm /var/lib/apt/lists/lock
samsung@ubuntu:~$ sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup
samsung@ubuntu:~$ sudo cp /var/lib/dpkg/status-old /var/lib/dpkg/status
samsung@ubuntu:~$ sudo cp /var/lib/dpkg/available-old /var/lib/dpkg/available
samsung@ubuntu:~$ sudo rm -rf /var/lib/dpkg/updates/*
samsung@ubuntu:~$ sudo rm -rf /var/lib/apt/lists
samsung@ubuntu:~$ sudo rm /var/cache/apt/*.bin
samsung@ubuntu:~$ sudo mkdir /var/lib/apt/lists
samsung@ubuntu:~$ sudo mkdir /var/lib/apt/lists/partial
samsung@ubuntu:~$ LANG=C;sudo apt-get clean
samsung@ubuntu:~$ LANG=C;sudo apt-get autoclean
Reading package lists... Done
Building dependency tree
Reading state information... Done
samsung@ubuntu:~$ LANG=C;sudo apt-get --purge autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  linux-headers-3.0.0-15* linux-headers-3.0.0-15-generic*
0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
8 not fully installed or removed.
After this operation, 98.2 MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 213286 files and directories currently installed.)
Removing linux-headers-3.0.0-15-generic ...
Removing linux-headers-3.0.0-15 ...
Setting up libpng12-0 (1.2.46-3ubuntu1.1) ...
Setting up adobe-flashplugin (11.1.102.62-0oneiric1) ...
Setting up adobe-flash-properties-gtk (11.1.102.62-0oneiric1) ...
Setting up thunderbird (10.0.1+build1-0ubuntu0.11.10.1) ...
Setting up thunderbird-globalmenu (10.0.1+build1-0ubuntu0.11.10.1) ...
Setting up thunderbird-gnome-support (10.0.1+build1-0ubuntu0.11.10.1) ...
Setting up update-manager-core (1:0.152.25.8) ...
Setting up update-manager (1:0.152.25.8) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
samsung@ubuntu:~$ LANG=C;sudo apt-get update -o APT::Cache-Limit=25165824
Ign http://archive.ubuntu.com oneiric InRelease
Ign http://extras.ubuntu.com natty InRelease
Ign http://archive.canonical.com oneiric InRelease
Ign http://archive.canonical.com natty InRelease
Get:1 http://archive.ubuntu.com oneiric Release.gpg [198 B]
Get:2 http://extras.ubuntu.com natty Release.gpg [72 B]
Get:3 http://archive.canonical.com oneiric Release.gpg [198 B]
Get:4 http://archive.ubuntu.com oneiric Release [40.8 kB]
Get:5 http://extras.ubuntu.com natty Release [9753 B]
Get:6 http://archive.canonical.com natty Release.gpg [198 B]
Get:7 http://archive.canonical.com oneiric Release [5922 B]
Get:8 http://extras.ubuntu.com natty/main Sources [14 B]
Get:9 http://archive.ubuntu.com oneiric/main Sources [877 kB]
Get:10 http://extras.ubuntu.com natty/main i386 Packages [14 B]
Ign http://extras.ubuntu.com natty/main TranslationIndex
Get:11 http://archive.canonical.com natty Release [5916 B]
Get:12 http://archive.canonical.com oneiric/partner i386 Packages [3939 B]
Ign http://archive.canonical.com oneiric/partner TranslationIndex
Get:13 http://archive.canonical.com natty/partner Sources [4582 B]
Ign http://extras.ubuntu.com natty/main Translation-en
Ign http://archive.canonical.com oneiric/partner Translation-en
Get:14 http://archive.ubuntu.com oneiric/main i386 Packages [1226 kB]
Get:15 http://archive.ubuntu.com oneiric/main TranslationIndex [3289 B]
Get:16 http://archive.ubuntu.com oneiric/main Translation-en [701 kB]
Fetched 2880 kB in 44s (65.0 kB/s)
Reading package lists... Done
samsung@ubuntu:~$ sudo dpkg --configure -a
samsung@ubuntu:~$ sudo dpkg --clear-avail
samsung@ubuntu:~$ LANG=C;sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
samsung@ubuntu:~$ LANG=C;sudo apt-get --fix-missing install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
samsung@ubuntu:~$ LANG=C;sudo apt-get update -o APT::Cache-Limit=25165824 && sudo apt-get dist-upgrade
Ign http://extras.ubuntu.com natty InRelease
Ign http://archive.canonical.com oneiric InRelease
Ign http://archive.canonical.com natty InRelease
Ign http://archive.ubuntu.com oneiric InRelease
Hit http://extras.ubuntu.com natty Release.gpg
Hit http://archive.canonical.com oneiric Release.gpg
Hit http://archive.ubuntu.com oneiric Release.gpg
Hit http://extras.ubuntu.com natty Release
Hit http://archive.canonical.com natty Release.gpg
Hit http://archive.ubuntu.com oneiric Release
Hit http://archive.canonical.com oneiric Release
Hit http://extras.ubuntu.com natty/main Sources
Hit http://archive.ubuntu.com oneiric/main Sources
Hit http://extras.ubuntu.com natty/main i386 Packages
Ign http://extras.ubuntu.com natty/main TranslationIndex
Hit http://archive.canonical.com natty Release
Hit http://archive.ubuntu.com oneiric/main i386 Packages
Hit http://archive.ubuntu.com oneiric/main TranslationIndex
Hit http://archive.canonical.com oneiric/partner i386 Packages
Ign http://archive.canonical.com oneiric/partner TranslationIndex
Hit http://archive.ubuntu.com oneiric/main Translation-en
Hit http://archive.canonical.com natty/partner Sources
Ign http://extras.ubuntu.com natty/main Translation-en
Ign http://archive.canonical.com oneiric/partner Translation-en
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
samsung@ubuntu:~$