But it seems that the --depclean is a dangerous operate ?? 在 2012年4月22日 上午7:15，Florian Philipp <li...@binarywings.net>写道：
> Am 21.04.2012 20:39, schrieb ny6...@gmail.com: > > On Sat, Apr 21, 2012 at 09:45:49AM +0200, Florian Philipp wrote: > >> Am 21.04.2012 05:27, schrieb ??????: > >>> I just install the xfce a few days ago, But i find i didn't like it . > So > >>> i want to remove it and install the Gnome . How can i remove the xfce > >>> clearly ? > >>> > >>> -- > >>> ???????????????????????? > >> > >> Gnome and Xfce share many libraries. Therefore it is best to install > >> Gnome first, before removing Xfce. Otherwise you will remove libraries > >> which you will later re-emerge for Gnome. > >> > >> Then you need to configure your display manager (kdm, gdm, xdm) to use > >> Gnome instead of Xfce. Kdm and Gdm should allow you to do that directly > >> on the login screen. > >> > >> When you are satisfied with Gnome, edit /var/lib/portage/world and > >> remove every line containing an Xfce package. Then run `emerge -av > >> --depclean` and you are done. > >> > >> You could continue to remove config files but that is usually not worth > >> the trouble. > >> > >> Hope this helps, > >> Florian Philipp > >> > > > > > > Do I understand you correctly that it is not necessary to run emerge > > -unmerge first before removing the atoms from @world and running emerge > > --depclean? > > > > Terry > > > > Yes. I think it is also mentioned in the gentoo handbook. In fact, you > should not use --unmerge because it doesn't check dependencies before > removing the package. > > If you want to delete a package only if no other package depends on it, > either remove it from world or use > `emerge -av --depclean <package_name>`. > The latter has the advantage of also telling you what depends on it. > > Regards, > Florian Philipp > > -- 好好学习，天天向上！！！
