关于zypper 不太理解

zypper up 不是把所有软件更新到可用的新版本吗？我用了之后出现了这个问题是怎么回事阿？
rangerboy@linux-pdzd:~> sudo zypper up
口令：
Loading repository data...
Reading installed packages...

The following package updates will NOT be installed:
akonadi-runtime alsa ark awesfx bluedevil btrfsprogs choqok cifs-utils cln
clucene-core digikam digikam-lang dolphin ethtool ggz ggz-client-libs
gstreamer-0_10-plugin-gnomevfs gstreamer-0_10-plugins-base
gstreamer-0_10-plugins-good gwenview insserv iproute2 k3b kaffeine kcalc
kcharselect kcm_gtk kcolorchooser kde4-kgreeter-plugins kde4-l10n-de
kde4-l10n-ru kde4-l10n-zh_CN kdeartwork4-screensaver
kdeartwork4-weatherwallpapers kdebase4 kdebase4-libkonq kdebase4-nsplugin
kdebase4-openSUSE kdebase4-runtime-branding-openSUSE kdebase4-runtime-xine
kdebase4-session kdebase4-workspace kdebase4-workspace-branding-openSUSE
kdebase4-workspace-ksysguardd kdebase4-workspace-liboxygenstyle kdegames4
kdegames4-carddecks-default kdegames4-carddecks-other kdegraphics4
kdelibs4-branding-openSUSE kdemultimedia4 kdenetwork4-filesharing
kdepasswd kdepimlibs4 kdialog kdm kdm-branding-openSUSE kdnssd
keditbookmarks kernel-default kernel-firmware kfind kgamma kget kgpg
kio_audiocd kio_iso kio_kamera kio_sysinfo kio_sysinfo-branding-openSUSE
kipi-plugins kipi-plugins-acquireimage kmag kmahjongg kmines kmix
kmousetool kompare konqueror konqueror-plugins konsole konversation kopete
kpat krdc kreversi krfb kruler kscd ksnapshot ksshaskpass ksudoku ktorrent
kvkbd kwalletmanager kwebkitpart kwin kwrite lensfun liba52-0 libakonadi4
libakonadiprotocolinternals1 libao4 libao-plugin4-esd libao-plugins4
libasound2 libattica0 libavcodec52 libavformat52 libavutil50 libbluedevil1
libdbusmenu-qt2 libepub0 libggz2 libgpod4 libgpod-tools libgstapp-0_10-0
libgstinterfaces-0_10-0 libiodbc3 libkcddb4 libkcompactdisc4 libkdcraw9
libkdegames4 libkdepimlibs4 libkexiv2-9 libkipi8 libkonq5 libksane0
libksuseinstall1 libktorrent3 liblastfm0 liblensfun0 liblqr-1-0 libmsn0_3
libopencv2_2 libplist1 libpolkit-qt-1-1 libpostproc51 libpulse0
libpulse-browse0 libpulse-mainloop-glib0 libqalculate5 libqimageblitz4
libqjson0 libqoauth1 libquicktime libreoffice-hyphen
libreoffice-icon-theme-oxygen libreoffice-templates-en
libreoffice-templates-labels-a4 libreoffice-templates-labels-letter
libreoffice-templates-presentation-layouts libreoffice-thesaurus-de
libsmbclient0 libsndfile libsoprano4 libssh4 libstrigi0 libswscale0
libtag-extras1 libupnp6 libusbmuxd1 libva1 libvlc5 libvpx0 libwavpack1
libwbclient0 libx264-114 marble marble-data mjpegtools
NetworkManager-kde4-libs NetworkManager-openvpn-kde4
NetworkManager-pptp-kde4 NetworkManager-vpnc-kde4 okular oxygen-gtk
phonon-backend-xine plasma-addons plasma-addons-marble plasma-theme-aya
plasmoid-networkmanagement plasmoid-quickaccess polkit-kde-agent-1
polkit-kde-kcmmodules-1 preload preload-kmp-default pulseaudio
pulseaudio-esound-compat pulseaudio-module-bluetooth
pulseaudio-module-jack pulseaudio-module-lirc pulseaudio-module-x11
pulseaudio-module-zeroconf pulseaudio-utils python-qt4 python-sip samba
samba-client shared-desktop-ontologies skanlite soprano
soprano-backend-redland soprano-backend-virtuoso strigi sweeper synaptiks
systemtap-runtime taglib usbmuxd usbutils vcdimager vim vim-base vim-data
virtuoso-drivers virtuoso-server vorbis-tools

Nothing to do.

显示下列更新没有安装，那为什么不下载安装呢？