[solved] How to restart all services with systemd?

I had the habit of restarting all daemons after an upgrade so to make sure the newest libraries, configuration files etc were loaded. I did that with a shell script that restarted the daemons in order which they were listed in rc.conf. With systemd I could do something similar by first getting a list of running services and ordering a 'systemcrl restart <servicename>' for each. But since systemd keeps track of dependencies I wonder if that would be the way to do it. Also I would need to filter out 'one shot' type services that are only needed on bootup.
<edit>restart instead of reload</edit>
<edit>solved it with a little script</edit>
Last edited by rwd (2012-11-27 21:02:02)

I think that's what systemctl snapshot does.
snapshot [NAME]
Create a snapshot. If a snapshot name is specified, the new snapshot will be named after it. If none is specified an automatic snapshot name is generated. In either case, the snapshot name used is printed to STDOUT, unless --quiet is specified.
A snapshot refers to a saved state of the systemd manager. It is implemented itself as a unit that is generated dynamically with this command and has dependencies on all units active at the time. At a later time the user may return to this state by using the isolate command on the snapshot unit.
Snapshots are only useful for saving and restoring which units are running or are stopped, they do not save/restore any other state. Snapshots are dynamic and lost on reboot.
Then, isolate emergency.target or rescue target and switch to the snapshot.

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[SOLVED] How to restart services compatibly with SysVinit

I'm collaborating on a Kubuntu user's package of scripts for Thinkpad X220 Tablets. As part of the installation process of the package, the acpid daemon must be restarted to reload newly installed ACPI hooks. On Kubuntu, the command to restart acpid is:
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Last edited by kwehmu (2013-11-12 06:37:39)

progandy wrote:
The right way to detect systemd would be this:
if command -v systemd-notify >/dev/null && systemd-notify --booted; then
echo SYSTEMD
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fi
Thanks, that's helpful. I'm still wondering why 'service <name> restart' doesn't work, though. According to the documentation on systemd's website, it should. Why do you think it doesn't work? (Is the documentation incorrect, am I misreading the documentation, is 'service' part of another package, etc?)
tomk wrote:Absolutely, this should be left to the user. The Arch way to handle this is with a post-install message, nothing more.
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[SOLVED] Can not shutdown/restart from KDE with systemd

Hello,
Recently, following I switched to a pure systemd setup. The process was simple and most things worked "right out of the bpx". However, I can not shutdown or restart from KDE!
Let's say that I do the 3 finger salute (ALT-CTRL-DEL) and select "Turn off computer" what I get is KDE shutting down, but then I will only get a console (TTY) login prompt. Pressing ALT-CTRL-DEL then will trigger a reboot. I can also login and use "systemctl poweroff". However, I don't understand why it doesn't work straight from KDE.
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Active units :
UNIT LOAD ACTIVE SUB JOB DESCRIPTION
proc-sys...misc.automount loaded active waiting Arbitrary Executable File Formats File System Automount Point
sys-devi...d-card0.device loaded active plugged MCP79 High Definition Audio
sys-devi...da-sda1.device loaded active plugged ST9500420ASG
sys-devi...da-sda2.device loaded active plugged ST9500420ASG
sys-devi...da-sda3.device loaded active plugged ST9500420ASG
sys-devi...da-sda4.device loaded active plugged ST9500420ASG
sys-devi...da-sda5.device loaded active plugged ST9500420ASG
sys-devi...da-sda6.device loaded active plugged ST9500420ASG
sys-devi...ock-sda.device loaded active plugged ST9500420ASG
sys-devi...et-eth0.device loaded active plugged RTL8111/8168B PCI Express Gigabit Ethernet controller
sys-devi...t-wlan0.device loaded active plugged AR928X Wireless Network Adapter (PCI-Express)
sys-devi...y-ttyS0.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS0
sys-devi...y-ttyS1.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS1
sys-devi...y-ttyS2.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS2
sys-devi...y-ttyS3.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS3
sys-module-fuse.device loaded active plugged /sys/module/fuse
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dev-hugepages.mount loaded active mounted Huge Pages File System
dev-mqueue.mount loaded active mounted POSIX Message Queue File System
home.mount loaded active mounted /home
run-user-1000-gvfs.mount loaded active mounted /run/user/1000/gvfs
sys-fs-f...nections.mount loaded active mounted FUSE Control File System
sys-kernel-debug.mount loaded active mounted Debug File System
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systemd-...word-wall.path loaded active waiting Forward Password Requests to Wall Directory Watch
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Last edited by Prozzaks (2012-08-20 17:35:48)

Demon wrote:For me the system only halts, it does not poweroff. How I can solve this?
As bgc1954 said, there is also a symlink "/sbin/poweroff". Just edit the file "/usr/share/config/kdm/kdmrc", go to [shutdown] an replace the line "HaltCmd=/sbin/halt" with "HaltCmd=/sbin/poweroff".

[solved...] How to REstart a service?

I'd like to "RE"start a service; which means that i want to stop and start a service only if it was running, but If i do systemctl restart myservice, systemd will start it even if it was stopped.
Also, systemctl report a successful status in stopping an already stopped service, try by yourself!
TravelMate koko # systemctl stop sshd ; echo $?
0
TravelMate koko # systemctl stop sshd ; echo $?
0
...i dont think this is right at all, it is not possible to stop a stopped thing, so it should return error imho.
Anyway, is there a simple way of REstarting a service only if it was running?
Thanks.
Last edited by kokoko3k (2014-12-30 15:44:04)

ANOKNUSA wrote:An exit code of '0' just means the command didn't run into any "failure" conditions. It can mean either that the process succeeded, or that the process had nothing to do. You'd get a non-zero return if you tried to start or stop a non-existent service, and systemd would spit out an error message.
Unfortunately, it is not; at least in an unconsistent systemd world.
Indeed, i managed to solve the issue this way:
systemctl status sshd && systemctl restart sshd
Also see:
# systemctl stop sshd ; systemctl status sshd ; echo $?
● sshd.service - OpenSSH Daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: disabled)
Active: inactive (dead) since mar 2014-12-30 16:40:34 CET; 7ms ago
Main PID: 3016 (code=exited, status=0/SUCCESS)
3
To summarize, if the service is stopped:
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As for your restarting issue, systemd's behavior seems logical.
It seems the opposite to me.
Marking as solved, but still...

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Last edited by jerf (2012-11-13 13:15:52)

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[Solved] Running mpd as user mpd with systemd without using mpd.conf

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Last edited by manuelschneid3r (2015-03-25 12:52:52)

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The ps|grep output showed that you run grep as root, not mpd itself (which won't have a space in the command -- the second time it only worked because the mpd group is preceded by a space).
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Last edited by Raynman (2015-03-25 12:58:36)

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[solved] How to restart all services with systemd?

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