Nokia-N900-02-8:~# 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:
  gstreamer0.10-vorbis gstreamer0.10-flac gstreamer0.10-theora python-mutagen
  libtheora0 gstreamer0.10-ogg
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  hildon-application-manager hildon-im-keyboard-assistant-scv
  hildon-input-method hildon-update-category-database libhildon-thumbnail0
  libhildon1 libhildonfm2 libnss3 libnss3-certs libpixman-1-0
  rtcom-accounts-ui rtcom-messaging-ui-l10n-enus rtcom-messaging-ui-l10n-mr0
  tablet-bookmark-manager tablet-browser-controls
  tablet-browser-default-plugin tablet-browser-dialogs tablet-browser-ui
  tablet-browser-view tablet-browser-widgets
The following NEW packages will be installed:
  hildon-application-manager hildon-im-keyboard-assistant-scv
  hildon-input-method hildon-update-category-database libhildon-thumbnail0
  libnss3 libnss3-certs rtcom-accounts-ui rtcom-messaging-ui-l10n-enus
  rtcom-messaging-ui-l10n-mr0 tablet-bookmark-manager tablet-browser-controls
  tablet-browser-default-plugin tablet-browser-dialogs tablet-browser-ui
  tablet-browser-view tablet-browser-widgets
The following packages will be upgraded:
  libhildon1 libhildonfm2 libpixman-1-0
3 upgraded, 17 newly installed, 0 to remove and 616 not upgraded.
Need to get 2520kB of archives.
After this operation, 5730kB of additional disk space will be used.
Do you want to continue [Y/n]?
WARNING: The following packages cannot be authenticated!
  libhildon1 libhildon-thumbnail0 libhildonfm2 libpixman-1-0
  hildon-application-manager hildon-input-method
  hildon-update-category-database libnss3-certs libnss3 rtcom-accounts-ui
  rtcom-messaging-ui-l10n-enus tablet-bookmark-manager tablet-browser-view
  tablet-browser-controls tablet-browser-dialogs tablet-browser-widgets
  tablet-browser-ui tablet-browser-default-plugin
Install these packages without verification [y/N]? y