9e5f0f9291
First, rename root-fs.target to initrd-root-fs.target to clarify its usage.
Mount units with "x-initrd-rootfs.mount" are now ordered before
initrd-root-fs.target. As we sometimes construct /sysroot mounts in
/etc/fstab in the initrd, we want these to be mounted before the
initrd-root-fs.target is active.
initrd.target can be the default target in the initrd.
(normal startup)
:
:
v
basic.target
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______________________/|
/ |
| sysroot.mount
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| v
| initrd-root-fs.target
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| v
| initrd-parse-etc.service
(custom initrd services) |
| v
| (sysroot-usr.mount and
| various mounts marked
| with fstab option
| x-initrd.mount)
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| v
| initrd-fs.target
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\______________________ |
\|
v
initrd.target
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v
initrd-cleanup.service
isolates to
initrd-switch-root.target
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v
______________________/|
/ |
| initrd-udevadm-cleanup-db.service
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(custom initrd services) |
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\______________________ |
\|
v
initrd-switch-root.target
|
v
initrd-switch-root.service
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v
switch-root
113 lines
4.5 KiB
C
113 lines
4.5 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#define SPECIAL_DEFAULT_TARGET "default.target"
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/* Shutdown targets */
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#define SPECIAL_UMOUNT_TARGET "umount.target"
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/* This is not really intended to be started by directly. This is
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* mostly so that other targets (reboot/halt/poweroff) can depend on
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* it to bring all services down that want to be brought down on
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* system shutdown. */
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#define SPECIAL_SHUTDOWN_TARGET "shutdown.target"
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#define SPECIAL_HALT_TARGET "halt.target"
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#define SPECIAL_POWEROFF_TARGET "poweroff.target"
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#define SPECIAL_REBOOT_TARGET "reboot.target"
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#define SPECIAL_KEXEC_TARGET "kexec.target"
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#define SPECIAL_EXIT_TARGET "exit.target"
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#define SPECIAL_SUSPEND_TARGET "suspend.target"
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#define SPECIAL_HIBERNATE_TARGET "hibernate.target"
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#define SPECIAL_HYBRID_SLEEP_TARGET "hybrid-sleep.target"
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/* Special boot targets */
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#define SPECIAL_RESCUE_TARGET "rescue.target"
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#define SPECIAL_EMERGENCY_TARGET "emergency.target"
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/* Early boot targets */
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#define SPECIAL_SYSINIT_TARGET "sysinit.target"
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#define SPECIAL_SOCKETS_TARGET "sockets.target"
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#define SPECIAL_LOCAL_FS_TARGET "local-fs.target"
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#define SPECIAL_LOCAL_FS_PRE_TARGET "local-fs-pre.target"
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#define SPECIAL_INITRD_FS_TARGET "initrd-fs.target"
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#define SPECIAL_INITRD_ROOT_FS_TARGET "initrd-root-fs.target"
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#define SPECIAL_REMOTE_FS_TARGET "remote-fs.target" /* LSB's $remote_fs */
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#define SPECIAL_REMOTE_FS_PRE_TARGET "remote-fs-pre.target"
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#define SPECIAL_SWAP_TARGET "swap.target"
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#define SPECIAL_BASIC_TARGET "basic.target"
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/* LSB compatibility */
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#define SPECIAL_NETWORK_TARGET "network.target" /* LSB's $network */
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#define SPECIAL_NSS_LOOKUP_TARGET "nss-lookup.target" /* LSB's $named */
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#define SPECIAL_RPCBIND_TARGET "rpcbind.target" /* LSB's $portmap */
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#define SPECIAL_TIME_SYNC_TARGET "time-sync.target" /* LSB's $time */
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/*
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* Rules regarding adding further high level targets like the above:
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*
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* - Be conservative, only add more of these when we really need
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* them. We need strong usecases for further additions.
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*
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* - When there can be multiple implementations running side-by-side,
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* it needs to be a .target unit which can pull in all
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* implementations.
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*
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* - If something can be implemented with socket activation, and
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* without, it needs to be a .target unit, so that it can pull in
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* the appropriate unit.
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*
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* - Otherwise, it should be a .service unit.
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*
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* - In some cases it is OK to have both a .service and a .target
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* unit, i.e. if there can be multiple parallel implementations, but
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* only one is the "system" one. Example: syslog.
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*
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* Or to put this in other words: .service symlinks can be used to
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* arbitrate between multiple implementations if there can be only one
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* of a kind. .target units can be used to support multiple
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* implementations that can run side-by-side.
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*/
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/* Magic early boot services */
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#define SPECIAL_FSCK_SERVICE "systemd-fsck@.service"
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#define SPECIAL_QUOTACHECK_SERVICE "systemd-quotacheck.service"
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#define SPECIAL_QUOTAON_SERVICE "quotaon.service"
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#define SPECIAL_REMOUNT_FS_SERVICE "systemd-remount-fs.service"
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/* Services systemd relies on */
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#define SPECIAL_DBUS_SERVICE "dbus.service"
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#define SPECIAL_DBUS_SOCKET "dbus.socket"
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#define SPECIAL_JOURNALD_SOCKET "systemd-journald.socket"
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#define SPECIAL_JOURNALD_SERVICE "systemd-journald.service"
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/* Magic init signals */
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#define SPECIAL_KBREQUEST_TARGET "kbrequest.target"
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#define SPECIAL_SIGPWR_TARGET "sigpwr.target"
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#define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target"
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/* For SysV compatibility. Usually an alias for a saner target. On
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* SysV-free systems this doesn't exist. */
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#define SPECIAL_RUNLEVEL2_TARGET "runlevel2.target"
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#define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target"
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#define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target"
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#define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target"
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