- 追加された行はこの色です。
- 削除された行はこの色です。
*CentOS7について [#i02d8bc4]
RIGHT:更新日 &lastmod();
**CentOS7の起動について [#x3e4a595]
UNIX System V系のinit→ systemdにより「ランレベル」から「ターゲット」に変更された。
***起動モードの確認 [#i5413f7b]
# systemctl get-default
graphical.target
System V系のランレベル5
***ターゲットの確認 [#vfc8e7b0]
# systemctl list-units --type=target --all --no-pager
UNIT LOAD ACTIVE SUB DESCRIPTION
basic.target loaded active active Basic System
cryptsetup.target loaded active active Encrypted Volumes
emergency.target loaded inactive dead Emergency Mode
final.target loaded inactive dead Final Step
getty.target loaded active active Login Prompts
graphical.target loaded active active Graphical Interface
local-fs-pre.target loaded active active Local File Systems (Pre)
local-fs.target loaded active active Local File Systems
multi-user.target loaded active active Multi-User System
network-online.target loaded inactive dead Network is Online
network.target loaded active active Network
(中略)
LOAD = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB = The low-level unit activation state, values depend on unit type.
27 loaded units listed.
To show all installed unit files use 'systemctl list-unit-files'.
***起動モードの変更(graphical→multi-user [runlevel5→runlevel3] [#s2bea787]
# systemctl set-default multi-user.target
rm '/etc/systemd/system/default.target'
ln -s '/usr/lib/systemd/system/multi-user.target' '/etc/systemd/system/default.target'
# systemctl get-default
multi-user.target
***CUIからGUIに切り替え [#tfeeaf7c]
# systemctl isolate graphical.target
***ランレベルとsystemdの対応 [#g00441d5]
| | runlevel | systemdでの変更コマンド |
|システム停止 | 0 | systemctl isolate poweroff.target |
|シングルユーザモード | 1 | systemctl isolate rescue.target |
|マルチユーザモード | 3 | systemctl isolate multi-user.target |
|グラフィカルユーザモード | 5 | systemctl isolate graphical.target |
|再起動 | 6 | systemctl isolate reboot.target |
|緊急モード | - | systemctl isolate emergency.target |
**参考 [#v3245b06]
http://thinkit.co.jp/story/2014/12/11/5388