#add-apt-repository ppa:gnome3-team/gnome3
#apt-get update
#apt-get dist-upgrade
#apt-get install gnome-shell

$git clone http://git.gnome.org/browse/gnome-shell-extensions
$cd gnome-shell-extensions
$./autogen.sh
$make
#make install

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[Desktop Entry]
Type=Application
Exec=gnome-shell --replace
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name[en_US]=Gnome Shell
Name=Gnome Shell
Comment[en_US]=
Comment=

$gnome-session
** Message: couldn't access conrol socket: /tmp/keyring-SPLEIN/control: No such file or directory
GNOME_KEYRING_CONTROL=/tmp/keyring-AanS6t
SSH_AUTH_SOCK=/tmp/keyring-AanS6t/ssh
GNOME_KEYRING_PID=27714
** Message: couldn't access conrol socket: /tmp/keyring-SPLEIN/control: No such file or directory
GNOME_KEYRING_CONTROL=/tmp/keyring-AanS6t
SSH_AUTH_SOCK=/tmp/keyring-AanS6t/ssh
** Message: couldn't access conrol socket: /tmp/keyring-SPLEIN/control: No such file or directory
GNOME_KEYRING_CONTROL=/tmp/keyring-AanS6t
SSH_AUTH_SOCK=/tmp/keyring-AanS6t/ssh
GPG_AGENT_INFO=/tmp/keyring-AanS6t/gpg:0:1
** Message: couldn't access conrol socket: /tmp/keyring-SPLEIN/control: No such file or directory
GNOME_KEYRING_CONTROL=/tmp/keyring-AanS6t
SSH_AUTH_SOCK=/tmp/keyring-AanS6t/ssh
GPG_AGENT_INFO=/tmp/keyring-AanS6t/gpg:0:1

** (gnome-settings-daemon:27711): WARNING **: Ignoring unknown module 'org.gnome.settings-daemon.plugins.gconf'

(gnome-power-manager:27712): GLib-GIO-CRITICAL **: g_dbus_connection_emit_signal: assertion `G_IS_DBUS_CONNECTION (connection)' failed
`menu_proxy_module_load': gnome-power-manager: undefined symbol: menu_proxy_module_load

(gnome-power-manager:27712): Gtk-WARNING **: Failed to load type module: (null)

`menu_proxy_module_load': gnome-power-manager: undefined symbol: menu_proxy_module_load

(gnome-power-manager:27712): Gtk-WARNING **: Failed to load type module: (null)

[1305354004,000,xklavier.c:xkl_engine_start_listen/]     The backend does not require manual layout management - but it is provided by the application
`menu_proxy_module_load': gnome-power-manager: undefined symbol: menu_proxy_module_load

(gnome-power-manager:27712): Gtk-WARNING **: Failed to load type module: (null)


(gnome-power-manager:27712): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
`menu_proxy_module_load': gnome-power-manager: undefined symbol: menu_proxy_module_load

(gnome-power-manager:27712): Gtk-WARNING **: Failed to load type module: (null)


(gnome-power-manager:27712): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(gnome-settings-daemon:27711): common-plugin-WARNING **: Key 0xff6a (keycodes:  146)  with state 0x0 (resolved to 0x0)  has no usable modifiers (usable modifiers are 0x140000ed)
Window manager warning: Screen 0 on display ":0.0" already has a window manager
Failed to play sound: File or data not found

** (gnome-screensaver:27745): WARNING **: screensaver already running in this session
Window manager warning: Screen 0 on display ":0.0" already has a window manager
gnome-session[27700]: WARNING: App 'gnome-shell.desktop' respawning too quickly
** Message: applet now removed from the notification area
** (nm-applet:27750): DEBUG: old state indicates that this was not a disconnect 0
** (nm-applet:27750): DEBUG: foo_client_state_changed_cb
** (nm-applet:27750): DEBUG: foo_client_state_changed_cb