Systemd-tips - Revision history

Admin at 23:29, 29 May 2025

2025-05-29T23:29:41Z

← Older revision		Revision as of 23:29, 29 May 2025
Line 74:		Line 74:


	~~Create symlinks and start~~ the service		Enable the service
	<pre>		<pre>
	systemctl enable preshutdownscript.service		systemctl enable preshutdownscript.service
	systemctl start preshutdownscript.service
	</pre>		</pre>

Admin at 23:28, 29 May 2025

2025-05-29T23:28:41Z

← Older revision		Revision as of 23:28, 29 May 2025
Line 67:		Line 67:
	[Service]		[Service]
	Type=oneshot		Type=oneshot
	ExecStop=/bin/bash /usr/local/bin/~~preshutdown~~.sh		ExecStop=/bin/bash /usr/local/bin/preshutdownscript.sh

	[Install]		[Install]

Admin at 23:16, 29 May 2025

2025-05-29T23:16:02Z

← Older revision		Revision as of 23:16, 29 May 2025
Line 64:		Line 64:
	Description=run this script when issued a system shutdown or reboot		Description=run this script when issued a system shutdown or reboot
	RequiresMountsFor=/mnt/usb1 /mnt/usb2		RequiresMountsFor=/mnt/usb1 /mnt/usb2



	[Service]		[Service]

Admin at 23:15, 29 May 2025

2025-05-29T23:15:41Z

← Older revision		Revision as of 23:15, 29 May 2025
Line 56:		Line 56:

	===enable pre-shutdown script===		===enable pre-shutdown script===

			(to do some things before unmounting two external usb drives)

	/etc/systemd/system/preshutdownscript.service		/etc/systemd/system/preshutdownscript.service
	<pre>		<pre>
	[Unit]		[Unit]
	Description=~~Unmount~~ ~~tcvol~~ ~~before~~ shutdown		Description=run this script when issued a system shutdown or reboot
	RequiresMountsFor=/mnt/~~usb~~ /mnt/~~tc1~~		RequiresMountsFor=/mnt/usb1 /mnt/usb2

	#Before=shutdown.target reboot.target halt.target kexec.target


	[Service]		[Service]
	Type=oneshot		Type=oneshot
	ExecStop=/bin/bash /usr/local/bin/~~unmount-tcvol~~.sh		ExecStop=/bin/bash /usr/local/bin/preshutdown.sh

	[Install]		[Install]
	WantedBy=multi-user.target shutdown.target		WantedBy=multi-user.target shutdown.target
	</pre>		</pre>

	---[end]---

			Create symlinks and start the service
			<pre>
			systemctl enable preshutdownscript.service
			systemctl start preshutdownscript.service
			</pre>

Admin at 23:12, 29 May 2025

2025-05-29T23:12:25Z

← Older revision		Revision as of 23:12, 29 May 2025
Line 57:		Line 57:
	===enable pre-shutdown script===		===enable pre-shutdown script===

	~~---[~~/etc/systemd/system/preshutdownscript.service~~]===~~		/etc/systemd/system/preshutdownscript.service
	<pre>		<pre>
	[Unit]		[Unit]

Admin at 23:12, 29 May 2025

2025-05-29T23:12:06Z

← Older revision		Revision as of 23:12, 29 May 2025
Line 50:		Line 50:
	systemctl start rc-local.service		systemctl start rc-local.service
	</pre>		</pre>





			===enable pre-shutdown script===

			---[/etc/systemd/system/preshutdownscript.service]===
			<pre>
			[Unit]
			Description=Unmount tcvol before shutdown
			RequiresMountsFor=/mnt/usb /mnt/tc1
			#Before=shutdown.target reboot.target halt.target kexec.target


			[Service]
			Type=oneshot
			ExecStop=/bin/bash /usr/local/bin/unmount-tcvol.sh

			[Install]
			WantedBy=multi-user.target shutdown.target
			</pre>
			---[end]---

Admin at 02:07, 24 May 2025

2025-05-24T02:07:21Z

← Older revision		Revision as of 02:07, 24 May 2025
Line 26:		Line 26:


		⚫	/etc.rc.local

	<pre>		<pre>
⚫	~~--[example~~ /etc.rc.local~~]--~~
	#!/bin/sh -e		#!/bin/sh -e
	#		#
Line 43:		Line 42:

	exit 0		exit 0
			</pre>
	--[end]--

			Create symlinks and start the service
			<pre>
	systemctl daemon-reload		systemctl daemon-reload
			systemctl enable rc-local.service

	systemctl start rc-local		systemctl start rc-local.service
	</pre>		</pre>

Admin at 02:05, 24 May 2025

2025-05-24T02:05:49Z

← Older revision		Revision as of 02:05, 24 May 2025
Line 4:		Line 4:

	===Enable /etc/rc.local===		===Enable /etc/rc.local===


			/etc/systemd/system/rc-local.service
			<pre>
			[Unit]
			Description=/etc/rc.local Compatibility
			ConditionPathExists=/etc/rc.local

			[Service]
			Type=forking
			ExecStart=/etc/rc.local start
			TimeoutSec=0
			StandardOutput=tty
			RemainAfterExit=yes
			SysVStartPriority=99

			[Install]
			WantedBy=multi-user.target
			</pre>




	<pre>		<pre>

Admin: /* Enable /etc/rc.local= */

2024-02-09T01:17:37Z

Enable /etc/rc.local=

New page

===Enable /etc/rc.local===

<pre>
--[example /etc.rc.local]--
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

exit 0
--[end]--

systemctl daemon-reload

systemctl start rc-local
</pre>