Как обновить boost lib с помощью apt-get?

Я использую Ubuntu 11.04.

Моя версия буста:

  sam@sam:~/code/ros/pcl$ apt-cache  showpkg libboost-all-dev
  Package: libboost-all-dev
  Versions: 
  1.42.0.1ubuntu1 (/var/lib/apt/lists/tw.archive.ubuntu.com_ubuntu_dists_natty_universe_binary-amd64_Packages) (/var/lib/dpkg/status)
   Description Language: 
                   File: /var/lib/apt/lists/tw.archive.ubuntu.com_ubuntu_dists_natty_universe_binary-amd64_Packages
                    MD5: 72efad05a3c79394c125b79e1d4eb3a7


  Reverse Depends: 
    libvtk5-dev,libboost-all-dev
    libfeel++-dev,libboost-all-dev
  Dependencies: 
  1.42.0.1ubuntu1 - libboost-dev (0 (null)) libboost-date-time-dev (0 (null)) libboost-filesystem-dev (0 (null)) libboost-graph-dev (0 (null)) libboost-iostreams-dev (0 (null)) libboost-math-dev (0 (null)) libboost-program-options-dev (0 (null)) libboost-python-dev (0 (null)) libboost-regex-dev (0 (null)) libboost-serialization-dev (0 (null)) libboost-signals-dev (0 (null)) libboost-system-dev (0 (null)) libboost-test-dev (0 (null)) libboost-thread-dev (0 (null)) libboost-wave-dev (0 (null)) 
  Provides: 
  1.42.0.1ubuntu1 - 
  Reverse Provides: 
  sam@sam:~/code/ros/pcl$                                                       

Как повысить буст до 1,44+ с помощью инструментов apt?

Спасибо ~

Когда я запускаю apt -add-репозиторий, он показывает:

  sam@sam:~/code/ros/pcl$ sudo apt-add-repository ppa:timklingt/ppa
  Error reading https://launchpad.net/api/1.0/~timklingt/+archive/ppa: GnuTLS recv error (-9): A TLS packet with unexpected length was received.
  sam@sam:~/code/ros/pcl$       

Как это исправить?

Спасибо ~

Я пытаюсь установить libboost1.46-all- dev:

  sam@sam:~/code/ros/pcl$ sudo apt-get install libboost1.46-all-dev
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   libboost1.46-all-dev : Depends: libboost1.46-dev but it is not going to be installed
                          Depends: libboost-date-time1.46-dev but it is not going to be installed
                          Depends: libboost-filesystem1.46-dev but it is not going to be installed
                          Depends: libboost-graph1.46-dev but it is not going to be installed
                          Depends: libboost-iostreams1.46-dev but it is not going to be installed
                          Depends: libboost-math1.46-dev but it is not going to be installed
                          Depends: libboost-program-options1.46-dev but it is not going to be installed
                          Depends: libboost-python1.46-dev but it is not going to be installed
                          Depends: libboost-regex1.46-dev but it is not going to be installed
                          Depends: libboost-serialization1.46-dev but it is not going to be installed
                          Depends: libboost-signals1.46-dev but it is not going to be installed
                          Depends: libboost-system1.46-dev but it is not going to be installed
                          Depends: libboost-test1.46-dev but it is not going to be installed
                          Depends: libboost-thread1.46-dev but it is not going to be installed
                          Depends: libboost-wave1.46-dev but it is not going to be installed
  E: Broken packages
  sam@sam:~/code/ros/pcl$                               

Что означает эта ошибка?

И как ее устранить?

Спасибо ~