I need to run a command (writeback dmsetup flush) when OS shutdown before stopping local file system pre (mounted disk partitions) thus being possible correctly flush writeback cache.
In moment using the service below.
[Unit]
Description=Flush
DefaultDependencies=no
Before=umount.target
[Service]
Type=oneshot
User=root
Group=root
ExecStart=/usr/local/bin/flush.sh
TimeoutStartSec=0
[Install]
WantedBy=umount.target
The command run before unmount.target being after stopping local-fs-pre.target when alll disk partitions are unmounted. Shutdown.target and reboot.target not work for it. Adding local-fs-pre.target will run the command when OS is starting not being correct.
Thanks for reply.
In moment using the service below.
[Unit]
Description=Flush
DefaultDependencies=no
Before=umount.target
[Service]
Type=oneshot
User=root
Group=root
ExecStart=/usr/local/bin/flush.sh
TimeoutStartSec=0
[Install]
WantedBy=umount.target
The command run before unmount.target being after stopping local-fs-pre.target when alll disk partitions are unmounted. Shutdown.target and reboot.target not work for it. Adding local-fs-pre.target will run the command when OS is starting not being correct.
Thanks for reply.
