Флаги:
[ebuild NS ] dev-libs/glib-2.4.7
You already have a version of glib installed, but a 'new' version in a different SLOT is available.
[ebuild f ] media-video/realplayer-8-r6
The realplayer package's files are already downloaded.
N = new, (not yet installed)
S = new, Slot installation (side-by-side versions)
U = updating, (changing versions)
D = downgrade, (Best version seems lower)
R = replacing, (Remerging same version))
F = fetch restricted, (Manual download)
f = fetch restricted, (Already downloaded)
B = blocked by an already installed package - для тех кто забыл

Опции: не смотрел, но на первый взгляд есть и новые...
gentoo dilan # emerge -pvU world
*** Warning: --upgradeonly is a deprecated option in portage-2.0.51-r1
*** and will likely be removed in a future version.
