X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fbootup.xml;h=4cc4bafab776320c3cf2782023e3863990816159;hp=ae84cff0b79d82ba5c049b5652ba2418e24aa3c7;hb=cfbc22abd0525570a6e58968d518ea9a7d0403ba;hpb=013d8a39a6178179080bcfee9122b29cf9d29259 diff --git a/man/bootup.xml b/man/bootup.xml index ae84cff0b..4cc4bafab 100644 --- a/man/bootup.xml +++ b/man/bootup.xml @@ -44,7 +44,7 @@ bootup - The System Bootup Process + System bootup process @@ -53,7 +53,7 @@ A number of different components are involved in the system boot. Immediately after power-up, the system BIOS will do minimal hardware initialization, and hand - control over to a boot loader stored on a persistant + control over to a boot loader stored on a persistent storage device. This boot loader will then invoke an OS kernel from disk (or the network). In the Linux case this kernel now (optionally) extracts and @@ -73,7 +73,7 @@ storage technologies backing them), and then (optionally) jumps back into the initrd code which unmounts/detaches the root file system and the storage - it resides on. As last step the system powered down. + it resides on. As last step the system is powered down. Additional information about the system boot process may be found in @@ -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 @@ -147,18 +147,18 @@ v basic.target | - _________________/| emergency.service - / | | - | | v - v v emergency.target - (various system (various system - services services) - required for | - graphical UIs) v - | multi-user.target - | | - | _________________/ - |/ + __________________________________/| emergency.service + / | | | + | | | v + v v v emergency.target + display- (various system (various system + manager.service services services) + | required for | + | graphical UIs) v + | | multi-user.target + | | | + \_______________ | _________________/ + \|/ v graphical.target @@ -183,32 +183,32 @@ - (conflicts with (conflicts with - all system all file system - services) mounts, swaps, - | cryptsetup - | devices, ...) - | | - v v - shutdown.target umount.target - | | - \_______ ______/ - \ / - v - (various low-level - services) - | - v - final.target - | - __________________________/ \_____________________ - / | | \ - | | | | - v v v v -reboot.service poweroff.service halt.service kexec.service - | | | | - v v v v -reboot.target poweroff.target halt.target kexec.target + (conflicts with (conflicts with + all system all file system + services) mounts, swaps, + | cryptsetup + | devices, ...) + | | + v v + shutdown.target umount.target + | | + \_______ ______/ + \ / + v + (various low-level + services) + | + v + final.target + | + _____________________________________/ \_________________________________ + / | | \ + | | | | + v v v v +systemd-reboot.service systemd-poweroff.service systemd-halt.service systemd-kexec.service + | | | | + v v v v + reboot.target poweroff.target halt.target kexec.target Commonly used system shutdown targets are emphasized.