Some of the packages were removed between CentOS 6 and CentOS 7. This may break
the upgrade for some of your packages. We are not aware of any compatible
replacement for these packages.

Following packages are no longer available:
ConsoleKit-libs
ConsoleKit-x11 (required by NonCentOS signed package(s):xorg-x11-xinit )
b43-openfwwf
brasero
brasero-libs
brasero-nautilus
busybox
gnome-desktop (required by NonCentOS signed package(s):gnome-screensaver )
gnome-disk-utility-libs
gnome-disk-utility-ui-libs
gnome-panel
gnome-panel-libs
gnome-themes (required by NonCentOS signed package(s):system-icon-theme metacity rhythmbox )
gtk2-engines
hal-info
hal-libs
hal-storage-addon (required by NonCentOS signed package(s):kdebase-runtime )
kde-settings-kdm
kdm
kipi-plugins
kipi-plugins-libs
libgail-gnome
libnih
plymouth-gdm-hooks
plymouth-theme-rings
plymouth-utils
python-paramiko (required by NonCentOS signed package(s):cas rho )
pywebkitgtk (required by NonCentOS signed package(s):rhythmbox )
system-config-network-tui
vte
webkitgtk
wireless-tools (required by NonCentOS signed package(s):python-iwlib )
xorg-x11-drv-acecad (required by NonCentOS signed package(s):xorg-x11-drivers )
xorg-x11-drv-aiptek (required by NonCentOS signed package(s):xorg-x11-drivers )
xorg-x11-drv-fpit (required by NonCentOS signed package(s):xorg-x11-drivers )
xorg-x11-drv-hyperpen (required by NonCentOS signed package(s):xorg-x11-drivers )
xorg-x11-drv-mutouch (required by NonCentOS signed package(s):xorg-x11-drivers )
xorg-x11-drv-penmount (required by NonCentOS signed package(s):xorg-x11-drivers )

If some NonCentOS signed package requires these packages, you may need to ask your
vendor to provide alternative solution or get the missing package from
different sources than RHEL.