X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fbootup.xml;h=65923528d4429d5046955ffc76873353fcbe7860;hp=760a5a4c2980182ed65560e91f7d9e879d2c4615;hb=4c42e8e1618e2352cb628d459593233a86202ce6;hpb=49f43d5f91a99b23f745726aa351d8f159774357
diff --git a/man/bootup.xml b/man/bootup.xml
index 760a5a4c2..65923528d 100644
--- a/man/bootup.xml
+++ b/man/bootup.xml
@@ -44,7 +44,7 @@
bootup
- The System Bootup Process
+ System bootup process
@@ -111,7 +111,7 @@
target units are available, as listed on
systemd.special7.
- The follow chart is a structural overview of
+ The following chart is a structural overview of
these well-known units and their position in the
boot-up logic. The arrows describe which units are
pulled in and ordered before which other units. Units
@@ -173,6 +173,77 @@
to them.
+
+ Initrd System Manager Bootup
+ The default target in the initrd is the initrd.target. The bootup process is
+ identical to the System Manager Bootup until it reaches basic.target. From there,
+ systemd approaches the special initrd.target. If the root device can be mounted at
+ /sysroot, the sysroot.mount unit becomes active and the initrd-root-fs.target is
+ reached.
+ The initrd-parse-etc.service scans /sysroot/etc/fstab for a possible /usr mountpoint
+ and additional entries marked with the x-initrd.mount option.
+ All entries found are mounted below /sysroot, and the initrd-fs.target is reached.
+ The initrd-cleanup.service isolates to the initrd-switch-root.target, where cleanup
+ services can run. As the very last step, the initrd-switch-root.service is activated,
+ which will cause the system to switch its root to /sysroot.
+
+
+
+ (identical to System Manager Bootup)
+ :
+ :
+ v
+ basic.target
+ | emergency.service
+ ______________________/| |
+ / | v
+ | sysroot.mount emergency.target
+ | |
+ | v
+ | initrd-root-fs.target
+ | |
+ | v
+ | initrd-parse-etc.service
+ (custom initrd services) |
+ | v
+ | (sysroot-usr.mount and
+ | various mounts marked
+ | with fstab option
+ | x-initrd.mount)
+ | |
+ | v
+ | initrd-fs.target
+ \______________________ |
+ \|
+ v
+ initrd.target
+ |
+ v
+ initrd-cleanup.service
+ isolates to
+ initrd-switch-root.target
+ |
+ v
+ ______________________/|
+ / |
+ | initrd-udevadm-cleanup-db.service
+ | |
+ (custom initrd services) |
+ | |
+ \______________________ |
+ \|
+ v
+ initrd-switch-root.target
+ |
+ v
+ initrd-switch-root.service
+ |
+ v
+ switch-root
+
+
+
+
System Manager Shutdown
@@ -219,7 +290,8 @@ systemd-reboot.service systemd-poweroff.service systemd-halt.service syste
systemd1,
boot7,
systemd.special7,
- systemd.target5
+ systemd.target5,
+ dracut8