останов обновления по ошибке...коллизия файлов?

 * Сообщения для пакета sys-fs/udisks-1.0.5-r1:

 * This package will overwrite one or more files that may belong to other
 * packages (see list below). You can use a command such as `portageq
 * owners / <filename>` to identify the installed package that owns a
 * file. If portageq reports that only one package owns a file then do
 * NOT file a bug report. A bug report is only useful if it identifies at
 * least two or more packages that are known to install the same file(s).
 * If a collision occurs and you can not explain where the file came from
 * then you should simply ignore the collision since there is not enough
 * information to determine if a real problem exists. Please do NOT file
 * a bug report at http://bugs.gentoo.org unless you report exactly which
 * two packages install the same file(s). See
 * http://wiki.gentoo.org/wiki/Knowledge_Base:Blockers for tips on how to
 * solve the problem. And once again, please do NOT file a bug report
 * unless you have completely understood the above message.
 * 
 * Detected file collision(s):
 * 
 *     /usr/share/polkit-1/actions/org.freedesktop.udisks.policy
 * 
 * Searching all installed packages for file collisions...
 * 
 * Press Ctrl-C to Stop
 * 
 * sys-fs/udisks-2.1.3:2::gentoo
 *     /usr/share/polkit-1/actions/org.freedesktop.udisks.policy
 * 
 * Package 'sys-fs/udisks-1.0.5-r1' NOT merged due to file collisions. If
 * necessary, refer to your elog messages for the whole content of the
 * above message.

 * GNU info directory index is up-to-date.
 * After world updates, it is important to remove obsolete packages with
 * emerge --depclean. Refer to `man emerge` for more information.
 * Выполнение Emerge завершилось с ошибкой
 * Не удалось обновить