2012/11/18 Warpme <<a href="mailto:warpme@o2.pl" target="_blank">warpme@o2.pl</a>> <div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Well, Things pretend to be simple seems to be not simple After 2 days of fighting with issue I have to ask for help. I want to kick systemd service when usb HDD is plugged. As started service needs to know HDD label I wan to use templates. Here is what it goes: udev rule: SUBSYSTEM=="block", KERNEL=="sd[c-z][0-9]", GOTO="begin" GOTO="end" LABEL="begin" ACTION=="add", GOTO="begin_add" ACTION=="remove", GOTO="begin_remove" GOTO="end" LABEL="begin_add" SYMLINK+="usbhd-%k", GROUP="root" ENV{ID_FS_LABEL_ENC}="usbhd-%k" IMPORT{program}="/sbin/blkid -o udev -p $tempnode" ENV{ID_FS_LABEL_ENC}==".myth.backup", ENV{MOUNT_DIR}="/media/$env{ID_FS_LABEL_ENC}", RUN+="/bin/mkdir -p $env{MOUNT_DIR}", RUN+="/bin/mount -t auto -o rw,noauto,noatime /dev/%k $env{MOUNT_DIR}" ENV{ID_FS_LABEL_ENC}==".myth.backup", TAG+="systemd", ENV{SYSTEMD_WANTS}="ext-usb-backup.service" GOTO="end" service file: [Unit] Description=MythtTV ExtUSB Backup Helper [Service] ExecStart=/usr/local/bin/run-backup.sh Type=forking GuessMainPID=false RemainAfterExit=no Issue: it works with: ENV{ID_FS_LABEL_ENC}==".myth.backup", RUN+="/usr/bin/systemctl start ext-usb-backup.service" but not works with: ENV{ID_FS_LABEL_ENC}==".myth.backup", TAG+="systemd", ENV{SYSTEMD_WANTS}="ext-usb-backup.service" (With TAG+ENV approach udev behaves like line with TAG+ENV is non-existing: no any error nor any sign it is parsed) Where the issue is ? Thx in advance ! </blockquote><div> Hi</div><div> </div><div>I don't really have an idea, but here are some things you could check additionally:</div><div>Does systemd create a .device unit? And if yes is it active/plugged? And does it have the correct "Wants=ext-usb-backup.service" attribute? Does udevadm info --query=property --path=<path to sysfs device> show the correct values for</div> <div>SYSTEMD_WANTS and TAGS?</div></div> <div>Mirco</div>