我还不熟悉upstart。据我所知，当我用自己的帐户启动 KDE 时，upstart会启动很多服务。但我有一些其他用户，我让他们使用，openbox因为我希望他们有一个只有一个浏览器的最小系统。因此，在他们登录后，比如说tty5，他们会运行：
$ ps aux | grep ^lightUser
lightUser 7430 0.0 0.0 41092 7432 tty5 S 01:06 0:00 -bash
lightUser 10038 0.0 0.0 34916 2596 tty5 R+ 01:19 0:00 ps aux
lightUser 10039 0.0 0.0 28216 796 tty5 S+ 01:19 0:00 grep --color=auto ^lightUser
在他们启动图形会话后，出现了无数的服务：
$ ps aux | ^lightUser
lightUser 1655 0.0 0.0 41084 7268 tty2 S+ 01:04 0:00 -bash
lightUser 4139 0.0 0.0 4452 1644 tty2 S+ 01:04 0:00 /bin/sh /usr/bin/startx
lightUser 4156 0.0 0.0 16008 2040 tty2 S+ 01:04 0:00 xinit /etc/X11/xinit/xinitrc -- /etc/X11/xinit/xserverrc :1 -auth /tmp/serverauth.GhYql1LxgX
lightUser 4167 0.0 0.0 12972 836 tty2 S 01:04 0:00 /usr/bin/ck-launch-session /usr/bin/dbus-launch --exit-with-session /usr/bin/im-launch /bin/bash /home/lightUser/.Xsession
lightUser 4227 0.0 0.0 10624 316 ? Ss 01:04 0:00 /usr/bin/ssh-agent /usr/bin/ck-launch-session /usr/bin/dbus-launch --exit-with-session /usr/bin/im-launch /bin/bash /home/lightUser/.Xsession
lightUser 4235 0.0 0.0 28892 3028 tty2 S 01:04 0:00 /bin/bash /home/lightUser/.Xsession
lightUser 4238 0.0 0.0 24448 1892 tty2 S 01:04 0:00 /usr/bin/dbus-launch --exit-with-session /usr/bin/im-launch /bin/bash /home/lightUser/.Xsession
lightUser 4239 0.0 0.0 39652 2772 ? Ss 01:04 0:00 //bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
lightUser 4250 0.0 0.0 388616 8108 ? Ssl 01:04 0:00 /usr/bin/ibus-daemon --daemonize --xim
lightUser 4260 0.1 0.4 218176 53072 tty2 Sl 01:04 0:01 Xephyr -fullscreen -screen 1920x1200 :11
lightUser 4261 0.0 0.0 76460 9192 tty2 S 01:04 0:00 blackbox
lightUser 4265 0.0 0.0 208908 5408 ? Sl 01:04 0:00 /usr/lib/gvfs/gvfsd
lightUser 4269 0.0 0.0 294900 9236 ? Sl 01:04 0:00 /usr/lib/gvfs/gvfsd-fuse /run/user/1002/gvfs -f -o big_writes
lightUser 4272 0.0 0.0 307936 7704 ? Sl 01:04 0:00 /usr/lib/ibus/ibus-dconf
lightUser 4275 0.0 0.2 750008 27552 ? Sl 01:04 0:00 /usr/lib/ibus/ibus-ui-gtk3
lightUser 4278 0.0 0.1 385120 15464 ? Sl 01:04 0:00 /usr/lib/ibus/ibus-x11 --kill-daemon
lightUser 4285 0.0 0.0 367704 9652 ? Sl 01:04 0:00 /usr/lib/at-spi2-core/at-spi-bus-launcher
lightUser 4291 0.0 0.0 39256 3360 ? S 01:04 0:00 /bin/dbus-daemon --config-file=/etc/at-spi2/accessibility.conf --nofork --print-address 3
lightUser 4294 0.0 0.0 124920 4780 ? Sl 01:04 0:00 /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
lightUser 4313 0.0 0.0 232084 7572 ? Sl 01:04 0:00 /usr/lib/ibus/ibus-engine-simple
lightUser 4329 0.0 0.1 309028 21044 tty2 Sl 01:04 0:00 /usr/bin/openbox --startup /usr/lib/x86_64-linux-gnu/openbox-autostart OPENBOX
lightUser 4346 0.1 1.5 1100016 188280 tty2 Sl 01:04 0:01 /usr/lib/firefox/firefox
lightUser 4351 0.0 0.3 447220 40408 tty2 Sl 01:04 0:00 yakuake
lightUser 4358 0.0 0.3 525468 40976 tty2 Sl 01:04 0:00 konsole
lightUser 4359 0.0 0.0 306032 7468 tty2 Sl 01:04 0:00 /usr/lib/x86_64-linux-gnu/indicator-bluetooth/indicator-bluetooth-service
lightUser 4360 0.0 0.0 308012 7620 tty2 Sl 01:04 0:00 /usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service
lightUser 4363 0.0 0.0 479472 8484 tty2 Sl 01:04 0:00 /usr/lib/x86_64-linux-gnu/deja-dup/deja-dup-monitor
lightUser 4364 0.0 0.1 265876 22480 tty2 Sl 01:04 0:00 /usr/bin/python /usr/share/system-config-printer/applet.py
lightUser 4366 0.0 0.2 846672 27824 tty2 Sl 01:04 0:00 update-notifier
lightUser 4369 0.0 0.1 421844 13136 tty2 Sl 01:04 0:00 zeitgeist-datahub
lightUser 4370 0.0 0.2 1220688 29716 tty2 Sl 01:04 0:00 nm-applet
lightUser 4375 0.0 0.0 70556 6132 ? S 01:04 0:00 /usr/lib/x86_64-linux-gnu/gconf/gconfd-2
lightUser 4390 0.0 0.0 323832 10436 ? Sl 01:04 0:00 /usr/lib/gvfs/gvfs-udisks2-volume-monitor
lightUser 4393 0.0 0.0 289924 8368 ? Sl 01:04 0:00 /usr/bin/zeitgeist-daemon
lightUser 4396 0.0 0.0 297848 6912 ? S<l 01:04 0:00 /usr/bin/pulseaudio --start --log-target=syslog
lightUser 4441 0.0 0.0 298232 8292 ? Sl 01:04 0:00 /usr/lib/gvfs/gvfs-afc-volume-monitor
lightUser 4446 0.0 0.0 224844 6264 ? Sl 01:04 0:00 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
lightUser 4451 0.0 0.0 229812 7592 ? Sl 01:04 0:00 /usr/lib/gvfs/gvfs-mtp-volume-monitor
lightUser 4459 0.0 0.1 178124 14936 ? Ss 01:04 0:00 kdeinit4: kdeinit4 Running...
lightUser 4462 0.0 0.1 217052 18920 ? S 01:04 0:00 kdeinit4: klauncher [kdeinit] --fd=8
lightUser 4468 0.0 0.2 303760 28032 ? S 01:04 0:00 kdeinit4: kded4 [kdeinit]
lightUser 4474 0.0 0.0 287240 6804 ? Sl 01:04 0:00 /usr/lib/libunity-webapps/unity-webapps-service
lightUser 4488 0.0 0.2 301372 29380 ? S 01:04 0:00 /usr/bin/kglobalaccel
lightUser 4490 0.0 0.0 40980 7120 pts/7 Ss+ 01:04 0:00 /bin/bash
lightUser 4509 0.0 0.0 41004 7192 pts/11 Ss+ 01:04 0:00 /bin/bash
lightUser 4516 0.0 0.2 412096 34220 ? Sl 01:04 0:00 /usr/bin/knotify4
lightUser 4533 0.0 0.2 762628 25904 ? Sl 01:04 0:00 /usr/lib/x86_64-linux-gnu/notify-osd
lightUser 4553 0.0 0.1 407532 18108 ? Sl 01:04 0:00 /usr/bin/gnome-screensaver --no-daemon
Xephyr（出于某种原因，我希望它们与、blackbox和 一起运行openbox）。
我如何才能防止所有冗余服务无用地启动？我想它们不需要任何包含、、、、、、*bus*等的东西……notifyscreensaverlauncherzeitgeistpulseaudionm-applet
谢谢！
PS: 的lightUser是~/.Xsession：
Xephyr -fullscreen -screen 1920x1200 :11 &
exec blackbox &
sleep 4
DISPLAY=:11 /usr/bin/openbox-session
还：
$ lsb_release -d
Description: Ubuntu 14.04.1 LTS