'\" t
.\"     Title: dracut.bootup
.\"    Author: [see the "AUTHOR(S)" section]
.\" Generator: Asciidoctor 2.0.23
.\"      Date: 2025-08-04
.\"    Manual: dracut
.\"    Source: dracut
.\"  Language: English
.\"
.TH "DRACUT.BOOTUP" "7" "2025-08-04" "dracut" "dracut"
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.SH "NAME"
dracut.bootup \- boot ordering in the initramfs
.SH "DESCRIPTION"
.sp
This flow chart illustrates the ordering of the services, if systemd is used in
the dracut initramfs.
.sp
.if n .RS 4
.nf
.fam C
                                    systemd\-journal.socket
                                               |
                                               v
                                    dracut\-cmdline.service
                                               |
                                               v
                                    dracut\-pre\-udev.service
                                               |
                                               v
                                     systemd\-udevd.service
                                               |
                                               v
local\-fs\-pre.target\&                dracut\-pre\-trigger.service
         |\&                                     |
         v\&                                     v
 (various mounts)\&  (various swap\&  systemd\-udev\-trigger.service
         |\&           devices...)\&               |\&             (various low\-level\&   (various low\-level
         |\&               |\&                     |\&             services: seed,\&       API VFS mounts:
         v\&               v\&                     v\&             tmpfiles, random\&     mqueue, configfs,
  local\-fs.target\&   swap.target\&     dracut\-initqueue.service\&    sysctl, ...)\&        debugfs, ...)
         |\&               |\&                     |\&                    |\&                    |
         \(rs_______________|____________________ | ___________________|____________________/
                                              \(rs|/
                                               v
                                        sysinit.target
                                               |
                             _________________/|\(rs___________________
                            /\&                  |\&                    \(rs
                            |\&                  |\&                    |
                            v\&                  |\&                    v
                        (various\&               |\&              rescue.service
                       sockets...)\&             |\&                    |
                            |\&                  |\&                    v
                            v\&                  |\&              rescue.target
                     sockets.target\&            |
                            |\&                  |
                            \(rs_________________ |\&                                 emergency.service
                                              \(rs|\&                                         |
                                               v\&                                         v
                                         basic.target\&                             emergency.target
                                               |
                        ______________________/|
                       /\&                       |
                       |\&                       v
                       |\&            initrd\-root\-device.target
                       |\&                       |
                       |\&                       v
                       |\&            dracut\-pre\-mount.service
                       |\&                       |
                       |\&                       v
                       |\&                  sysroot.mount
                       |\&                       |
                       |\&                       v
                       |\&             initrd\-root\-fs.target
           (custom initrd services)\&            |
                       |\&                       v
                       |\&             dracut\-mount.service
                       |\&                       |
                       |\&                       v
                       |\&            initrd\-parse\-etc.service
                       |\&                       |
                       |\&                       v
                       |\&            (sysroot\-usr.mount and
                       |\&             various mounts marked
                       |\&               with fstab option
                       |\&                x\-initrd.mount)
                       |\&                       |
                       |\&                       v
                       |\&                initrd\-fs.target
                       \(rs______________________ |
                                              \(rs|
                                               v
                                          initrd.target
                                               |
                                               v
                                    dracut\-pre\-pivot.service
                                               |
                                               v
                                     initrd\-cleanup.service
                                          isolates to
                                    initrd\-switch\-root.target
                                               |
                                               v
                        ______________________/|
                       /\&                       |
                       |\&        initrd\-udevadm\-cleanup\-db.service
                       |\&                       |
           (custom initrd services)\&            |
                       |\&                       |
                       \(rs______________________ |
                                              \(rs|
                                               v
                                   initrd\-switch\-root.target
                                               |
                                               v
                                   initrd\-switch\-root.service
                                               |
                                               v
                                          switch\-root
.fam
.fi
.if n .RE
.SH "AUTHOR"
.sp
Harald Hoyer
.SH "SEE ALSO"
.sp
man:dracut[8] man:bootup[7,external]