systemd中文文档

- 启动: http://systemd.cn/docs/Booting/
- 自动启动评估: http://systemd.cn/docs/Booting/AUTOMATIC_BOOT_ASSESSMENT/
- 启动组件和根文件系统探测: http://systemd.cn/docs/Booting/ROOTFS_DISCOVERY/
- 引导加载程序接口: http://systemd.cn/docs/Booting/BOOT_LOADER_INTERFACE/
- 恢复出厂设置: http://systemd.cn/docs/Booting/FACTORY_RESET/
- 挂载点可用性要求: http://systemd.cn/docs/Booting/MOUNT_REQUIREMENTS/
- TPM2 PCR测量: http://systemd.cn/docs/Booting/TPM2_PCR_MEASUREMENTS/
- Boot Loader Specification: http://systemd.cn/docs/BOOT_LOADER_SPECIFICATION/
- Discoverable Partitions: http://systemd.cn/docs/DISCOVERABLE_PARTITIONS/
- Elf Dlopen Metadata: http://systemd.cn/docs/ELF_DLOPEN_METADATA/
- Osc Context: http://systemd.cn/docs/OSC_CONTEXT/
- Package Metadata for Executable Files: http://systemd.cn/docs/PACKAGE_METADATA_FOR_EXECUTABLE_FILES/
- API File Systems: http://systemd.cn/docs/API_FILE_SYSTEMS/
- Appstream Bundle: http://systemd.cn/docs/APPSTREAM_BUNDLE/
- Backports: http://systemd.cn/docs/BACKPORTS/
- Booting Without /usr is Broken: http://systemd.cn/docs/SEPARATE_USR_IS_BROKEN/
- Code Quality Tools: http://systemd.cn/docs/CODE_QUALITY/
- Coding Style: http://systemd.cn/docs/CODING_STYLE/
- Compatibility with SysV: http://systemd.cn/docs/INCOMPATIBILITIES/
- Container Interface: http://systemd.cn/docs/CONTAINER_INTERFACE/
- Contributing: http://systemd.cn/docs/CONTRIBUTING/
- Control Group APIs and Delegation: http://systemd.cn/docs/CGROUP_DELEGATION/
- Converting Existing Users to systemd-homed: http://systemd.cn/docs/CONVERTING_TO_HOMED/
- Credentials: http://systemd.cn/docs/CREDENTIALS/
- Desktop Environment Integration: http://systemd.cn/docs/DESKTOP_ENVIRONMENTS/
- Diagnosing Boot Problems: http://systemd.cn/docs/DEBUGGING/
- File Descriptor Store: http://systemd.cn/docs/FILE_DESCRIPTOR_STORE/
- Frequently Asked Questions: http://systemd.cn/docs/FAQ/
- Governance: http://systemd.cn/docs/GOVERNANCE/
- Hacking on systemd: http://systemd.cn/docs/HACKING/
- Home Directories: http://systemd.cn/docs/HOME_DIRECTORY/
- Inhibitor Locks: http://systemd.cn/docs/INHIBITOR_LOCKS/
- Initrd Interface: http://systemd.cn/docs/INITRD_INTERFACE/
- Journal Export Formats: http://systemd.cn/docs/JOURNAL_EXPORT_FORMATS/
- Journal File Format: http://systemd.cn/docs/JOURNAL_FILE_FORMAT/
- Journal Message Catalogs: http://systemd.cn/docs/CATALOG/
- JSON Group Records: http://systemd.cn/docs/GROUP_RECORD/
- JSON User Records: http://systemd.cn/docs/USER_RECORD/
- Known Environment Variables: http://systemd.cn/docs/ENVIRONMENT/
- Locking Block Device Access: http://systemd.cn/docs/BLOCK_DEVICE_LOCKING/
- Minimal Builds: http://systemd.cn/docs/MINIMAL_BUILDS/
- My Service Can't Get Realtime!: http://systemd.cn/docs/MY_SERVICE_CANT_GET_REALTIME/
- Native Journal Protocol: http://systemd.cn/docs/JOURNAL_NATIVE_PROTOCOL/
- New Control Group Interfaces: http://systemd.cn/docs/CONTROL_GROUP_INTERFACE/
- Notes for Translators: http://systemd.cn/docs/TRANSLATORS/
- Password Agents: http://systemd.cn/docs/PASSWORD_AGENTS/
- Pax Controla Groupiana: http://systemd.cn/docs/PAX_CONTROL_GROUPS/
- Portability and Stability: http://systemd.cn/docs/PORTABILITY_AND_STABILITY/
- Portable Services Introduction: http://systemd.cn/docs/PORTABLE_SERVICES/
- Porting systemd To New Distributions: http://systemd.cn/docs/DISTRO_PORTING/
- Porting to New Architectures: http://systemd.cn/docs/PORTING_TO_NEW_ARCHITECTURES/
- Predictable Network Interface Names: http://systemd.cn/docs/PREDICTABLE_INTERFACE_NAMES/
- Presets: http://systemd.cn/docs/PRESET/
- Project IDs for Disk Quotas on Exec Directories: http://systemd.cn/docs/DISK-QUOTAS-PROJECTIDS/
- Random Seeds: http://systemd.cn/docs/RANDOM_SEEDS/
- Reporting of Security Vulnerabilities: http://systemd.cn/docs/SECURITY/
- Resource Pressure Handling: http://systemd.cn/docs/PRESSURE/
- Running Services After the Network Is Up: http://systemd.cn/docs/NETWORK_ONLINE/
- Safely Building Images: http://systemd.cn/docs/BUILDING_IMAGES/
- Socket Activation with Popular Daemons: http://systemd.cn/docs/DAEMON_SOCKET_ACTIVATION/
- Steps to a Successful Release: http://systemd.cn/docs/RELEASE/
- Storage Daemons for the Root File System: http://systemd.cn/docs/ROOT_STORAGE_DAEMONS/
- systemd Community Conduct Guidelines: http://systemd.cn/docs/CODE_OF_CONDUCT/
- systemd Coredump Handling: http://systemd.cn/docs/COREDUMP/
- systemd File Hierarchy Requirements: http://systemd.cn/docs/SYSTEMD_FILE_HIERARCHY_REQUIREMENTS/
- systemd Optimizations: http://systemd.cn/docs/OPTIMIZATIONS/
- systemd Repository Architecture: http://systemd.cn/docs/ARCHITECTURE/
- systemd-boot UEFI Boot Manager: http://systemd.cn/docs/BOOT/
- systemd-homed and JSON User/Group Record Support in Desktop Environments: http://systemd.cn/docs/USERDB_AND_DESKTOPS/
- systemd-resolved and VPNs: http://systemd.cn/docs/RESOLVED-VPNS/
- Testing systemd Using Sanitizers: http://systemd.cn/docs/TESTING_WITH_SANITIZERS/
- The Case for the /usr Merge: http://systemd.cn/docs/THE_CASE_FOR_THE_USR_MERGE/
- Tips And Tricks: http://systemd.cn/docs/TIPS_AND_TRICKS/
- User Record Blob Directories: http://systemd.cn/docs/USER_RECORD_BLOB_DIRS/
- User/Group Name Syntax: http://systemd.cn/docs/USER_NAMES/
- User/Group Record Lookup API via Varlink: http://systemd.cn/docs/USER_GROUP_API/
- Users, Groups, UIDs and GIDs on systemd Systems: http://systemd.cn/docs/UIDS-GIDS/
- Using /tmp/ and /var/tmp/ Safely: http://systemd.cn/docs/TEMPORARY_DIRECTORIES/
- Varlink API Style: http://systemd.cn/docs/VARLINK/
- VM Interface: http://systemd.cn/docs/VM_INTERFACE/
- What Settings Are Currently Available For Transient Units?: http://systemd.cn/docs/TRANSIENT-SETTINGS/
- Writing Desktop Environments: http://systemd.cn/docs/WRITING_DESKTOP_ENVIRONMENTS/
- Writing Display Managers: http://systemd.cn/docs/WRITING_DISPLAY_MANAGERS/
- Writing Network Configuration Managers: http://systemd.cn/docs/WRITING_NETWORK_CONFIGURATION_MANAGERS/
- Writing Resolver Clients: http://systemd.cn/docs/WRITING_RESOLVER_CLIENTS/
- Writing syslog Daemons Which Cooperate Nicely With systemd: http://systemd.cn/docs/SYSLOG/
- Writing VM and Container Managers: http://systemd.cn/docs/WRITING_VM_AND_CONTAINER_MANAGERS/


# 系统和服务管理器

systemd是一套用于Linux系统的基本构建模块。它提供了一个系统和服务管理器，以`PID 1`运行，并启动系统的其他部分。

systemd提供积极的并行化能力，使用套接字和D-Bus激活来启动服务，支持按需启动守护进程，利用Linux控制组跟踪进程，维护挂载和自动挂载点，并实现了复杂的基于事务的依赖服务控制逻辑。

其他部分包括一个日志守护进程、用于控制基本系统配置的工具，如主机名、日期、语言环境，维护已登录用户和运行中的容器及虚拟机的列表、系统账户、运行目录和设置，以及用于管理简单网络配置、网络时间同步、日志转发和名称解析的守护进程。

## 启动
- [自动启动评估](/docs/Booting/AUTOMATIC_BOOT_ASSESSMENT)
- [启动组件和根文件系统探测](/docs/Booting/ROOTFS_DISCOVERY)
- [引导加载程序接口](/docs/Booting/BOOT_LOADER_INTERFACE)
- [恢复出厂设置](/docs/Booting/FACTORY_RESET)
- [挂载点可用性要求](/docs/Booting/MOUNT_REQUIREMENTS)
- [TPM2 PCR测量](/docs/Booting/TPM2_PCR_MEASUREMENTS)

## 更多

* [Introductory blog story](https://0pointer.de/blog/projects/systemd.html)
* [Three](https://0pointer.de/blog/projects/systemd-update.html) [status](https://0pointer.de/blog/projects/systemd-update-2.html) [updates](https://0pointer.de/blog/projects/systemd-update-3.html)
* The [Wikipedia article](https://en.wikipedia.org/wiki/systemd)

---

<pre class="intro-code-block">
Welcome to <span class="color-blue">Fedora 20 (Heisenbug)</span>!

[  <span class="color-green">OK</span>  ] Reached target Remote File Systems.
[  <span class="color-green">OK</span>  ] Listening on Delayed Shutdown Socket.
[  <span class="color-green">OK</span>  ] Listening on /dev/initctl Compatibility Named Pipe.
[  <span class="color-green">OK</span>  ] Reached target Paths.
[  <span class="color-green">OK</span>  ] Reached target Encrypted Volumes.
[  <span class="color-green">OK</span>  ] Listening on Journal Socket.
         Mounting Huge Pages File System...
         Mounting POSIX Message Queue File System...
         Mounting Debug File System...
         Starting Journal Service...
[  <span class="color-green">OK</span>  ] Started Journal Service.
         Mounting Configuration File System...
         Mounting FUSE Control File System...
[  <span class="color-green">OK</span>  ] Created slice Root Slice.
[  <span class="color-green">OK</span>  ] Created slice User and Session Slice.
[  <span class="color-green">OK</span>  ] Created slice System Slice.
[  <span class="color-green">OK</span>  ] Reached target Slices.
[  <span class="color-green">OK</span>  ] Reached target Swap.
         Mounting Temporary Directory...
[  <span class="color-green">OK</span>  ] Reached target Local File Systems (Pre).
         Starting Load Random Seed...
         Starting Load/Save Random Seed...
[  <span class="color-green">OK</span>  ] Mounted Huge Pages File System.
[  <span class="color-green">OK</span>  ] Mounted POSIX Message Queue File System.
[  <span class="color-green">OK</span>  ] Mounted Debug File System.
[  <span class="color-green">OK</span>  ] Mounted Configuration File System.
[  <span class="color-green">OK</span>  ] Mounted FUSE Control File System.
[  <span class="color-green">OK</span>  ] Mounted Temporary Directory.
[  <span class="color-green">OK</span>  ] Started Load Random Seed.
[  <span class="color-green">OK</span>  ] Started Load/Save Random Seed.
[  <span class="color-green">OK</span>  ] Reached target Local File Systems.
         Starting Recreate Volatile Files and Directories...
         Starting Trigger Flushing of Journal to Persistent Storage...
[  <span class="color-green">OK</span>  ] Started Recreate Volatile Files and Directories.
         Starting Record System Reboot/Shutdown in UTMP...
[  <span class="color-green">OK</span>  ] Started Trigger Flushing of Journal to Persistent Storage.
[  <span class="color-green">OK</span>  ] Started Record System Reboot/Shutdown in UTMP.
[  <span class="color-green">OK</span>  ] Reached target System Initialization.
[  <span class="color-green">OK</span>  ] Reached target Timers.
[  <span class="color-green">OK</span>  ] Listening on D-Bus System Message Bus Socket.
[  <span class="color-green">OK</span>  ] Reached target Sockets.
[  <span class="color-green">OK</span>  ] Reached target Basic System.
         Starting Permit User Sessions...
         Starting D-Bus System Message Bus...
[  <span class="color-green">OK</span>  ] Started D-Bus System Message Bus.
         Starting Login Service...
         Starting Cleanup of Temporary Directories...
[  <span class="color-green">OK</span>  ] Started Permit User Sessions.
[  <span class="color-green">OK</span>  ] Started Cleanup of Temporary Directories.
         Starting Console Getty...
[  <span class="color-green">OK</span>  ] Started Console Getty.
[  <span class="color-green">OK</span>  ] Reached target Login Prompts.
[  <span class="color-green">OK</span>  ] Started Login Service.
[  <span class="color-green">OK</span>  ] Reached target Multi-User System.

Fedora release 20 (Heisenbug)
Kernel 3.9.2-200.fc18.x86_64 on an x86_64 (console)

fedora login:
</pre>