View file File name : dracut-pre-trigger.service Content :# This file is part of dracut. # # See dracut.bootup(7) for details [Unit] Description=dracut pre-trigger hook Documentation=man:dracut-pre-trigger.service(8) DefaultDependencies=no Before=systemd-udev-trigger.service dracut-initqueue.service After=dracut-pre-udev.service systemd-udevd.service systemd-tmpfiles-setup-dev.service Wants=dracut-pre-udev.service systemd-udevd.service ConditionPathExists=/usr/lib/initrd-release ConditionDirectoryNotEmpty=|/lib/dracut/hooks/pre-trigger ConditionKernelCommandLine=|rd.break=pre-trigger Conflicts=shutdown.target emergency.target [Service] Environment=DRACUT_SYSTEMD=1 Environment=NEWROOT=/sysroot Type=oneshot ExecStart=-/bin/dracut-pre-trigger StandardInput=null StandardOutput=syslog StandardError=syslog+console KillMode=process RemainAfterExit=yes # Bash ignores SIGTERM, so we send SIGHUP instead, to ensure that bash # terminates cleanly. KillSignal=SIGHUP