dracut/modules.d/98dracut-systemd/dracut-pre-pivot.service

#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

# See systemd.special(7) for details

[Unit]
Description=dracut pre-pivot and cleanup hook
Documentation=man:dracut-pre-pivot.service(8)
After=initrd.target initrd-parse-etc.service sysroot.mount
After=dracut-initqueue.service dracut-pre-mount.service dracut-mount.service
Before=initrd-cleanup.service
Wants=remote-fs.target
After=remote-fs.target
ConditionPathExists=/usr/lib/initrd-release
ConditionDirectoryNotEmpty=|/lib/dracut/hooks/pre-pivot
ConditionDirectoryNotEmpty=|/lib/dracut/hooks/cleanup
ConditionKernelCommandLine=|rd.break=pre-pivot
ConditionKernelCommandLine=|rd.break=cleanup
ConditionKernelCommandLine=|rd.break
ConditionPathExists=|/dev/root
ConditionPathExists=|/dev/nfs

[Service]
Environment=DRACUT_SYSTEMD=1
Environment=NEWROOT=/sysroot
Type=oneshot
ExecStart=-/bin/dracut-pre-pivot
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