[Solved] systemd-user-session: Best way to pass global ENV vars?

Hey guys,
So when using the [email protected] from the user-session-units what's the best / cleanest way to set global environment variables for that systemd --user instance (and thus, all programs spawned from it)?
What I'm talking about is /etc/profile and $HOME/.profile.
For example, I usally configure my XDG_CONFIG_HOME and XDG_CACHE_HOME in my ~/.profile. But since systemd --user is being started by systemd --session none of these environment variables are loaded.
The solution I've come up is to change the ExecStart in the [email protected] file to something like this:
ExecStart=/usr/bin/sh -c "source /etc/profile; source $HOME/.config/bash/environment; exec /usr/lib/systemd/systemd --user"
I know I could use the `EnvironmentFile` option to load the environment variables from a file, but it's not as flexable as a bash script.
Am I thinking about this problem wrong? Is there a more "systemd --user"-y way of solving the problem?
Last edited by EvanPurkhiser (2013-08-12 03:02:48)

I've more or less solved this using my own user-session units. I still don't know if my method would really be considered the proper way or not though.
Last edited by EvanPurkhiser (2013-08-12 03:02:19)

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[SOLVED] Question about systemd-user-session

Hi!
I'm trying to setup a systemd --user session (using user-session-units and xorg-launch-helper from aur).
I have a couple of questions; this is my .xinitrc now:
#!/bin/bash
export BROWSER=chromium
if [ -d /etc/X11/xinit/xinitrc.d ]; then
for f in /etc/X11/xinit/xinitrc.d/*; do
[ -x "$f" ] && . "$f"
done
unset f
fi
spacefm --desktop &
compton -cGCf -m 0.9 -i 0.8 -D 5 --shadow-exclude 'g:e:Conky' &
volumeicon &
/home/federico/Script/touchpadoff_onboot.sh &
#connman-ui-gtk &
/home/federico/Script/calised-script &
dimdaemon &
tint2 -c .config/tint2/dragonauta.tint2rc &
conky -p 5 -c Script/conky.conf &
exec openbox
1) is "if" statement required when using systemd-user-session? And if yes, how can I reproduce it?
2) "conky -p 5 " will wait 5 seconds doing nothing. Will this mean that other .service will wait for it to finish? (i guess no, since they're executed in parallel).
3) how can I export "chromium" as my default browser?
Thank you very much!
Last edited by nierro (2013-04-06 17:56:17)

I followed everything in that wiki, and in KaiSforza and sofar github page.
I finally managed to get my old method (autologin to vt and autostart x) to work together with systemd --user: i put in .xinitrc "systemd --user" and deleted everything else.
So, my .config/systemd/user/ works. The problem is in the [email protected], i guess. I configured it like wiki says, mind to post here your /etc/systemd/system/[email protected]?
Thanks.
EDIT: here it is my [email protected]:
# This file is part of systemd.
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
[Unit]
Description=User Manager for %I
After=systemd-user-sessions.service
# This is needed for folks running Xorg on vt/1
Conflicts=[email protected]
[Service]
User=%I
PAMName=login
# Note memory:/ required kernel memory CGroups support
ControlGroup=%R/user/%I/shared cpu:/ memory:/
ControlGroupModify=yes
Type=notify
TTYPath=/dev/tty1
ExecStart=-/usr/lib/systemd/systemd --user
Environment=DISPLAY=:0
Environment=XDG_RUNTIME_DIR=/run/user/%U
Environment=DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/%U/dbus/user_bus_socket
[Install]
WantedBy=getty.target
and loginctl says my user has "1000" as UID.
Last edited by nierro (2013-04-05 16:13:14)

Please Suggest best way to pass Strings in a pipeline

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The String is passed between different modules and each module adds some more data to it (or may even remove some of it).
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Thanx

Yes. StringBuffer or StringBuilder you can use.
String string = "test";
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I want to connect another (maths) program with my java application. Therefore I need to paste data (some kind of tab separated table) to this program.
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Well, the connection will not be over a network, so I'd rather think it's not a Socket or RMI problem (unless someone convinces me).
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Forward systemd's sleep.target to a systemd user session

My naive approach was the following:
[email protected]
[Unit]
Description=sleep.target of a systemd user session
Before=sleep.target
StopWhenUnneeded=yes
[Service]
Type=oneshot
User=%I
RemainAfterExit=yes
ExecStart=/usr/bin/systemctl --user start sleep.target
ExecStop=/usr/bin/systemctl --user stop sleep.target
[Install]
WantedBy=sleep.target
sleep.target
[Unit]
Description=Sleep Timer Target
StopWhenUnneeded=yes
Unfortunately I got the following error:
$ systemctl status user-sleep@joerg
[email protected] - sleep.target of a systemd user session
Loaded: loaded (/etc/systemd/system/[email protected]; enabled)
Active: failed (Result: exit-code) since Mo 2013-06-10 12:30:41 CEST; 43min ago
Process: 10503 ExecStart=/usr/bin/systemctl --user start sleep.target (code=exited, status=1/FAILURE)
Jun 10 12:30:41 turing-machine systemd[1]: Service [email protected] is not needed anymore. Stopping.
Jun 10 12:30:41 turing-machine systemd[1]: [email protected]: main process exited, code=exited, status=1/FAILURE
Jun 10 12:30:41 turing-machine systemd[1]: Failed to start sleep.target of a systemd user session.
Jun 10 12:30:41 turing-machine systemd[1]: Unit [email protected] entered failed state.
Can I use "systemctl --user" only at a login shell and not in a systemd unit? Because using "systemd --user" from tty works great.
My use case is to logout gajim before suspend. This cannot be done in a normal .service file, because it does require a connection to the current dbus session.

My naive approach was the following:
[email protected]
[Unit]
Description=sleep.target of a systemd user session
Before=sleep.target
StopWhenUnneeded=yes
[Service]
Type=oneshot
User=%I
RemainAfterExit=yes
ExecStart=/usr/bin/systemctl --user start sleep.target
ExecStop=/usr/bin/systemctl --user stop sleep.target
[Install]
WantedBy=sleep.target
sleep.target
[Unit]
Description=Sleep Timer Target
StopWhenUnneeded=yes
Unfortunately I got the following error:
$ systemctl status user-sleep@joerg
[email protected] - sleep.target of a systemd user session
Loaded: loaded (/etc/systemd/system/[email protected]; enabled)
Active: failed (Result: exit-code) since Mo 2013-06-10 12:30:41 CEST; 43min ago
Process: 10503 ExecStart=/usr/bin/systemctl --user start sleep.target (code=exited, status=1/FAILURE)
Jun 10 12:30:41 turing-machine systemd[1]: Service [email protected] is not needed anymore. Stopping.
Jun 10 12:30:41 turing-machine systemd[1]: [email protected]: main process exited, code=exited, status=1/FAILURE
Jun 10 12:30:41 turing-machine systemd[1]: Failed to start sleep.target of a systemd user session.
Jun 10 12:30:41 turing-machine systemd[1]: Unit [email protected] entered failed state.
Can I use "systemctl --user" only at a login shell and not in a systemd unit? Because using "systemd --user" from tty works great.
My use case is to logout gajim before suspend. This cannot be done in a normal .service file, because it does require a connection to the current dbus session.

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Also, they can be set for GUI apps as well via ~/.MacOSX/environment.plist on a per user basis.
http://developer.apple.com/documentation/MacOSX/Conceptual/BPRuntimeConfig/Artic les/EnvironmentVars.html
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Best way to pass an array of waveforms inbetween VIs

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DATA STORAGE.vi:
Inputs:
WRITE/read (bool
ean)
DATA IN (2-D array of DBL, for example)
Channel Index (I32)
Outputs:
DATA OUT: 1-D array of DBL (or waveform, maybe).
Code:
WHILE
If WRITE/read
Store DATA IN in a shift reg.
else
Pass Shift reg IN to Shift reg Out.
Pick out channel via CHANNEL INDEX
Pass selected data to DATA OUT.
Loop NEVER.
The purpose of the loop is just to have a shift reg. It doesn't really loop - it executes once per call.
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
Culverson.com
Blog for (mostly LabVIEW) programmers: Tips And Tricks

[SOLVED] systemd --user: "Failed to open private bus connection:"

EDIT: The solution was to set DBUS_SESSION_BUS_ADDRESS, as suggested by gtmanfred in irc. By putting the following before executing systemd --user, the error vanished:
export DBUS_SESSION_BUS_ADDRESS=/run/user/$(id -u)/dbus/user_bus_socket
===================
Original problem:
Everything on my box appears to be working ok, but I'm getting this error consistently in tty1 and at the top of journalctl (as user) whenever I start systemd --user:
systemd[3975]: Failed to open private bus connection: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
I roughly have my system setup per this wiki section https://wiki.archlinux.org/index.php/Sy … ur_Session. I start systemd --user via a small script in my .bash_profile. Here are my relevant dbus{.service,socket} files, from the package user-session-units mentioned in the wiki: (Edit: xorg is started through xorg-launch-helper, also from that wiki page) Edit2: I'm not using autologin. I noticed that under the autologin section of that page, DBUS_SESSION_BUS_ADDRESS is set to some path. In my setup that isn't set anywhere, so I may try to copy that later but I don't have time to play with it right now. Will post back later.
=====/usr/lib/systemd/user/dbus.service=====
[Unit]
Description=D-Bus System Message Bus
Requires=dbus.socket
[Service]
ExecStart=/usr/bin/dbus-daemon --session --address=systemd: --nofork --systemd-activation
ExecReload=/usr/bin/dbus-send --print-reply --session --type=method_call --dest=org.freedesktop.DBus / org.freedesktop.DBus.ReloadConfig
=====/usr/lib/systemd/user/dbus.socket=====
[Unit]
Description=D-Bus System Message Bus Socket
[Socket]
ListenStream=%t/dbus/user_bus_socket
And the output of sudo systemctl status dbus:
dbus.service - D-Bus System Message Bus
Loaded: loaded (/usr/lib/systemd/system/dbus.service; static)
Active: active (running) since Tue 2013-02-05 14:50:30 EST; 22min ago
Main PID: 369 (dbus-daemon)
CGroup: name=systemd:/system/dbus.service
└─369 /usr/bin/dbus-daemon --system --address=systemd: --no...
Feb 05 14:50:30 sellers-laptop systemd[1]: Starting D-Bus System Message Bus...
Feb 05 14:50:30 sellers-laptop systemd[1]: Started D-Bus System Message Bus.
Feb 05 14:51:18 sellers-laptop dbus-daemon[369]: dbus[369]: [system] Activating via systemd: service name='org.freedesktop.Avahi' unit='dbus-org.freedesktop.Avahi.service'
Feb 05 14:51:18 sellers-laptop dbus[369]: [system] Activating via systemd: service name='org.freedesktop.Avahi' unit='dbus-org.freedesktop.Avahi.service'
Feb 05 14:51:18 sellers-laptop dbus[369]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.Avahi.service': Unit dbus-org.freedesktop.Avahi.service failed to load: No such file or directory. See system logs and 'systemctl status dbus-org.freedesktop.Avahi.service' for details.
Feb 05 14:51:18 sellers-laptop dbus-daemon[369]: dbus[369]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.Avahi.service': Unit dbus-org.freedesktop.Avahi.service failed to load: No such file or directory. See system logs and 'systemctl status dbus-org.freedesktop.Avahi.service' for details.
I'm not sure what the error even means or how to go about debugging it. Any suggestions would be appreciated.
Last edited by Feynman (2013-02-05 22:07:23)

NVM...didn't notice it was already solved.
Last edited by the sad clown (2013-02-05 22:33:10)

[SOLVED] What is the best way to load iptables/nftables on boot?

Hi -
New arch user migrating from Ubuntu/debian. I'm used to loading netfilter iptable rules using an /etc/network/interfaces file. What is the best way to do this using netctl/systemd?
An RTFM of the wiki and a Google search didn't provide an answer, but maybe I'm just looking in the wrong places.
Last edited by pgoetz (2014-06-21 08:32:01)

Ah, OK -- got it. I can just blindly enable the iptables.service, and systemd will make sure the interfaces are up before running the service. How cool. I'm still getting used to the luxury of not having to worry about stuff like this myself. The only minor issue is it looks like I'll have to get the systemd nftables service out of AUR.
Last edited by pgoetz (2014-02-24 19:58:53)

[Solved] Systemd user service and timer dbus error

I have installed arch recently and added a few of my own services, for example the acpi_call commands and such. Now I want to create a systemd service that runs every 5 minutes and execute a script.
I searched a lot and I found that I must use timers. I got the thing with the timers working, but because my script has to do with a specific user, I want it to run only every 5 minutes when i am logged in as that user.
I tried to put the files in /etc/systemd/users, .config/local/users and all the possibilities but everytime i want to enable it, it says dbus connection refused.
Can somebody please provide me a way to execute a systemd service every 5 minutes while I am logged in as a specific user?
I did follow the wiki and created a dbus service and all. Everything works on that side but i can't enable my user service.
thanks!
Last edited by nopemopes (2015-03-25 11:10:06)

jasonwryan wrote:
What errors are you getting? https://bbs.archlinux.org/viewtopic.php?id=57855
Not a Sysadmin issue, moving to NC...
sorry, didn't mean to be incomplete.
The error says "Failed to get D-Bus connection: Connection refused".
I did what the wiki said: Create the dbus files, enable them and such.
No i put my service files + timer in the places mentioned by the wiki but everytime i try to enable them, that error shows up.
systemctl status dbus gives me all good
dbus.service - D-Bus System Message Bus
Loaded: loaded (/usr/lib/systemd/system/dbus.service; static; vendor preset: disabled)
Active: active (running) since ma 2015-03-23 19:39:24 CET; 1h 18min ago
Docs: man:dbus-daemon(1)
Main PID: 246 (dbus-daemon)
CGroup: /system.slice/dbus.service
└─246 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
mrt 23 19:39:34 Jordy-Laptop dbus[246]: [system] Activating via systemd: service name='org.freedesktop.ModemManager1' unit='...ervice'
mrt 23 19:39:34 Jordy-Laptop dbus[246]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1....ectory.
mrt 23 19:39:34 Jordy-Laptop dbus[246]: [system] Activating via systemd: service name='org.freedesktop.ModemManager1' unit='...ervice'
mrt 23 19:39:34 Jordy-Laptop dbus[246]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1....ectory.
mrt 23 19:39:39 Jordy-Laptop dbus[246]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='...ervice'
mrt 23 19:39:39 Jordy-Laptop dbus[246]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
mrt 23 19:47:01 Jordy-Laptop dbus[246]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='...ervice'
mrt 23 19:47:01 Jordy-Laptop dbus[246]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
mrt 23 20:51:38 Jordy-Laptop dbus[246]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='...ervice'
mrt 23 20:51:38 Jordy-Laptop dbus[246]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
that's the log for dbus and these are my files:
drive_sync.service
[Unit]
Description=Drive sync
[Service]
Type=simple
ExecStart=drive_script.sh
drive_sync.timer
[Unit]
Description=Drive sync
[Service]
Type=simple
ExecStart=drive_script.sh
these files are located in ~/.config/systemd/user
Last edited by nopemopes (2015-03-23 20:00:55)

[Solved] systemd/user : how to exit window manager & stop X?

Solution: Jump to https://bbs.archlinux.org/viewtopic.php … 6#p1262166
I have set up my system to user systemd units to start my environment (roughly following the wiki).
My problem is that I cannot exit my window manager (using “io (exitWith ExitSuccess)” in Xmonad): the service file starting the WM (xmonad) stops/exits with success, but the xorg.service keeps
running. I need to switch to TTY2, systemctl --user stop xorg.service by hand, then switch to TTY1, execute Ctrl-C, and then I finally get my login
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This is a bit annoying, and I don't know how to fix it.
Here are the relevant (I think) unit files:
# xmonad.target
[Unit]
Description=XMonad
Wants=xorg.target
Wants=xinit.target
Requires=dbus.socket
AllowIsolate=true
[Install]
Alias=default.target
# xmonad.service
[Unit]
Description=Starts Xmonad
Before=xinitrc.target
After=xorg.target
Requires=xorg.target
[Service]
ExecStart=/usr/bin/xmonad
Environment=DISPLAY=:0
Restart=no
[Install]
WantedBy=xmonad.target
RequiredBy=xorg.service
As you can see, I have added the RequiredBy=xorg.service line at the bottom, hoping that if xmonad.service exits, so should xorg.service - but to
no avail.
What do I have to do in order to completely stop X and get my login prompt on TTY1 back?
EDIT: I am of course using the user-session-units.
Last edited by Stalafin (2013-04-22 13:54:45)

I know it's an old thread (not really old) but I have the same problem. The question is your solution doesnt work with me. It just give me an error like this:
Failed to issue method call: The name org.freedesktop.login1 was not provided by any .service files
Failed to issue method call: Process /bin/false exited with status 1

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Best way to pass back data from hierarchical table view?

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I have a view hierarchy using a navigation controller that's working pretty well. One of the bottom level views is a table view where the user selects an item from the list. This bottom view checks the list item, saves the selected item in a property, and then pops the view off the stack.
What's the best way to alert the parent view that the child view has been popped off so it can retrieve the value in the property? The calling push returns immediately, so it doesn't appear to be a modal call. I want to be able to use the same controller from other parent forms, so I need to be able to do this without referencing the parent in the child form ideally.
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Hi, well let me try to explain it a bit more
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In this example let us name it "didSelectValue:(NSString *)value"
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I'm writing a program with a large amount of data, around 900 variables. What is the best way for me to pass parts of this data to different subroutines? I have a main loop on a PXI RT Controller that is controlling hydraulic cylinders and the loop needs to be 1ms or better. How on earth should I pass 900 variables through a loop and keep it at 1ms? One large cluster?? Several smaller clusters?? Local Variables? Global Variables?? Help me please!!!

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Message Edited by Christian L on 01-31-2007 12:00 PM
Christian Loew, CLA
Principal Systems Engineer, National Instruments
Please tip your answer providers with kudos.
Any attached Code is provided As Is. It has not been tested or validated as a product, for use in a deployed application or system,
or for use in hazardous environments. You assume all risks for use of the Code and use of the Code is subject
to the Sample Code License Terms which can be found at: http://ni.com/samplecodelicense
Attachments:
CVT_Double_MemBlock.rtf ‏309 KB

What is the best way to pass a constant to a cin expecting a pointer to a value?

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Thanks

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If you are still having problems, do you have to create a CIN or can you create a DLL instead? The DLL will give you a few more ways to pass the data than a CIN does with no real performance decrease.
Also, have you read the "Using External Code in LabVIEW" manual? This hsould answer some questions as well.
Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask

[Solved] systemd-user-session: Best way to pass global ENV vars?

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