При следовании инструкции обновления на Python 2.7 возникла ошибка.

Следовал инструкции по обновлению на Python 2.7 [[http://www.calculate-linux.org/blogs/show/227]]
Во время этого процесса возникла ошибка (весь лог приведён ниже):
Что делать в данной ситуации?

academy21 yeromenko # emerge -C virtualbox-bin; emerge -ac; emerge virtualbox-bin
 * This action can remove important packages! In order to be safer, use
 * `emerge -pv --depclean <atom>` to check for reverse dependencies before
 * removing packages.

--- Couldn't find 'virtualbox-bin' to unmerge.

>>> No packages selected for removal by unmerge

 * Always study the list of packages to be cleaned for any obvious
 * mistakes. Packages that are part of the world set will always
 * be kept.  They can be manually added to this set with
 * `emerge --noreplace <atom>`.  Packages that are listed in
 * package.provided (see portage(5)) will be removed by
 * depclean, even if they are part of the world set.
 * 
 * As a safety measure, depclean will not remove any packages
 * unless *all* required dependencies have been resolved.  As a
 * consequence, it is often necessary to run `emerge --update
 * --newuse --deep @world` prior to depclean.

Calculating dependencies... done!
>>> Checking for lib consumers...
>>> Assigning files to packages...
 * In order to avoid breakage of link level dependencies, one or more
 * packages will not be removed. This can be solved by rebuilding the
 * packages that pulled them in.
 * 
 *   x11-drivers/nvidia-drivers-260.19.36 pulled in by:
 *     app-emulation/virtualbox-4.0.4-r1 needs libGL.so.1
 *     app-emulation/wine-1.2.1 needs libGL.so.1
 *     app-office/dia-0.97.1 needs libGL.so.1
 *     app-office/libreoffice-3.3.2 needs libGL.so.1
 *     dev-db/libiodbc-3.52.7 needs libGL.so.1
 *     kde-base/kdeartwork-kscreensaver-4.6.1 needs libGL.so.1
 *     kde-base/kdelibs-4.6.1-r2 needs libGL.so.1
 *     kde-base/kinfocenter-4.6.1 needs libGL.so.1
 *     kde-base/krunner-4.6.1 needs libGL.so.1
 *     kde-base/kwin-4.6.1 needs libGL.so.1
 *     kde-base/systemsettings-4.6.1 needs libGL.so.1
 *     media-gfx/gtkimageview-1.6.4 needs libGL.so.1
 *     media-gfx/imagemagick-6.6.5.6 needs libGL.so.1
 *     media-libs/freeglut-2.6.0 needs libGL.so.1
 *     media-libs/ftgl-2.1.3_rc5 needs libGL.so.1
 *     media-libs/jasper-1.900.1-r3 needs libGL.so.1
 *     media-libs/libcaca-0.99_beta17 needs libGL.so.1
 *     media-libs/libquicktime-1.2.2 needs libGL.so.1
 *     media-libs/mesa-7.10.1 needs libGL.so.1
 *     media-libs/xine-lib-1.1.19 needs libGL.so.1
 *     media-plugins/kipi-plugins-1.9.0 needs libGL.so.1
 *     media-video/mplayer-1.0_rc4_p20110322 needs libGL.so.1
 *     sci-visualization/qtiplot-0.9.8.2 needs libGL.so.1
 *     x11-apps/mesa-progs-8.0.1 needs libGL.so.1
 *     x11-apps/xdriinfo-1.0.4 needs libGL.so.1
 *     x11-libs/cairo-1.10.2-r1 needs libGL.so.1
 *     x11-libs/gl2ps-1.3.5 needs libGL.so.1
 *     x11-libs/libnotify-0.4.5 needs libGL.so.1
 *     x11-libs/pango-1.28.3-r1 needs libGL.so.1
 *     x11-libs/qt-opengl-4.7.2 needs libGL.so.1
 *     x11-libs/wxGTK-2.8.10.1-r5 needs libGL.so.1
 * 
 *   x11-libs/libXxf86misc-1.0.3 pulled in by:
 *     kde-base/krunner-4.6.1 needs libXxf86misc.so.1
 * 
>>> Adding lib providers to graph...
 /
Calculating dependencies... done!
 * Dependencies could not be completely resolved due to
 * the following required packages not being installed:
 * 
 *   media-video/nvidia-settings pulled in by:
 *     x11-drivers/nvidia-drivers-260.19.36
 * 
 * Have you forgotten to run `emerge --update --newuse --deep @world` prior
 * to depclean? It may be necessary to manually uninstall packages that no longer
 * exist in the portage tree since it may not be possible to satisfy their
 * dependencies.  Also, be aware of the --with-bdeps option that is documented
 * in `man emerge`.
Calculating dependencies... done!
[ebuild  N     ] app-emulation/virtualbox-bin-4.0.4  USE="additions chm python -headless -rdesktop-vrdp -sdk -vboxwebsrv" 
[blocks B      ] app-emulation/virtualbox-bin ("app-emulation/virtualbox-bin" is blocking app-emulation/virtualbox-4.0.4-r1)
[blocks B      ] app-emulation/virtualbox-bin ("app-emulation/virtualbox-bin" is blocking app-emulation/virtualbox-additions-4.0.4)
[blocks B      ] app-emulation/virtualbox-additions ("app-emulation/virtualbox-additions" is blocking app-emulation/virtualbox-bin-4.0.4)
[blocks B      ] app-emulation/virtualbox ("app-emulation/virtualbox" is blocking app-emulation/virtualbox-bin-4.0.4)

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (app-emulation/virtualbox-bin-4.0.4::gentoo, ebuild scheduled for merge) pulled in by
    virtualbox-bin


For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):

http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#blocked

Не знаю зачем выполнять <<emerge -C virtualbox-bin>>, если у Вас не установлен VirtualBox.

Как-то так:

emerge -C x11-libs/libXxf86misc x11-drivers/nvidia-drivers
emerge -ac
revdep-rebuild
emerge x11-drivers/nvidia-drivers

Да вот как раз VirtualBox у меня и установлен. :slight_smile: