Android分区表详解
| 分区 | 分区作用 | 中文介绍 |
|---|---|---|
| Modem | Partition for modem | 负责处理通讯协议相关的基带镜像 |
| Fsc | Cookie partition to store Modem File System’s cookies. | |
| Ssd | Partition for ssd diag module. stores the encrypted RSA keys | |
| Sbl1 | Partition for secondary boot loader | 硬件的初始化，并且保存加载其他模块信息的顺序 |
| Sbl1bak | Back up Partition for secondary boot loader | 备份 |
| Rpm | Partition for rpm image | 电源管理器，是高通MSM平台另外加的一块芯片，虽然与AP芯片打包在一起，但其是一个独立的ARM Core。负责与SMP,MPM交互进入睡眠或者唤醒整个系统 |
| Rpmbak | Back up Partition for rpm image | 备份 |
| Tz | Partition for tz image | trustzone是ARM TrustZone® 技术是系统范围的安全方法，基于安全需求和引导模式配置XPU，NAND MPU,它和其他模块代码运行在相互隔离的区域，主要实现底层很多安全性特性 |
| Tzbak | Back up Partition for tz image | 备份 |
| Hyp | Partition for hypervisor image | |
| Hypbak | Back up Partition for hypervisor image | |
| Dsp | Partition for adsp dymanic loaders image | |
| Modemst1 | Copy of Modem File System (Encrypted) | |
| Modemst2 | Copy of Modem File System (Encrypted) | |
| DDR | Partition for DDR. | |
| Fsg | Golden copy or backup of Modem File System (Encrypted). Also used to pre-populate the file system. | |
| Sec | Sec.dat contains fuse settings, mainly for secure boot and oem setting | Secure boot相关烧录信息 |
| Splash | The splash screen is displayed during the apps bootloader (also called the LK). The display driver in LK will read the splash image data from a separate eMMC partition named as ’splash’ | 开机画面文件 |
| Aboot | Partition for apps boot loader | bootloader文件，进入fastboot模式相关文件 |
| Abootbak | Back up Partition for apps boot loader | 备份 |
| Boot | This is the boot partition of your android device,It includes the android kernel and the ramdisk. | boot分区，包括内核文件和虚拟内存盘Ramdisk，负责设备开机，可在recovery模式进行擦除，重新安装带有boot分区的新系统 |
| Recovery | This is specially designed for backup. The recovery partition can be considered as an alternative boot partition | recovery分区，替代启动分区，执行恢复和维护系统的一些操作 |
| Devinfo | Device information including:iis_unlocked, is_tampered, is_verified, charger_screen_enabled, display_panel, bootloader_version, radio_version All these attirbutes are set based on some specific conditions and written on devinfo partition,. | |
| System | This partition contains the entire Android OS, other than the kernel and the ramdisk. This includes the Android GUI and all the system applications that come pre-installed on the device | system分区，包含Android系统的用户界面以及设置上的一些预装系统应用 |
| Cache | This is the partition where Android stores frequently accessed data and app components | cache分区，用于放置系统频繁访问的数据和应用程序组件的分区 |
| Persist | Partition entry for persist image. which contains data which shouldn’t be changed after the device shipped, for example: calibration data of chips(wifi, bt, camera, etc.), certificates and other security related files. | persist分区包含了设备的传感器和信号部分的驱动程序，例如wifi，蓝牙连接都有关系 |
| Misc | This partition contains miscellaneous system settings in form of on/off switches. These settings may include CID (Carrier or Region ID), USB configuration and certain hardware settings etc | CID（运营商或地区 ID）、USB 配置和某些硬件设置等 |
| Keystore | Partition for keystore service. | |
| Config | Partition needed during display panel initialization. More info at Display_panel_configuration_in_Device_Tree | |
| Oem | "It is meant for storing OEM specific info. Customer in this case can decide whether he wants to keep this partition or not typically reserved partitions are kept for future use | OEM存储内容，可能是开机logo |
| Limits | Partition to store LMh params on 8976 target. LMh (Limits management) driver in SBL writes the LMh HW trimmed data into separate partition and uses the same data for later reboots | |
| Mota | Backup partition for M ota upgrade | |
| Devcfg | Partition needed by TZ for M upgrades. | 可以刷这个分区去MIUI温控 |
| Dip | Partition needed for SafeSwitch, feature (FR26255) designed to allow OEMs and carriers to address new smartphone theft bill issues. | |
| Mdtp | Partition needed for SafeSwitch, feature (FR26255) designed to allow OEMs and carriers to address new smartphone theft bill issues. | |
| Userdata | Partition for userdata image | data分区，用于保存用户的数据，例如联系人，短信，设置偏好和应用程序存放的地方 |
| Cmnlib | Verified boot feature introduced in M needLK to load cmnlib corresponding partitions | |
| Keymaster | Verified boot feature introduced in M needs LK to load keymaster from corresponding partitions | |
| Syscfg | Syscfg is internal testing for Vmin and CPR characterization | |
| Mcfg | All MBNs place holder in flash. Specific MBN would be loaded by mcfg image based on the SIM/Carrier. | |
| Msadp | Used for modem debug policy | |
| Apdp | Used for persisting the debug policy. "Debug policy" is used to better support development and debug on secure/fuse-blown devices One instance of the debug policy will be signed for the AP | |
| Dpo | This partition will store a policy override | |
| super.img | 动态分区是Android的用户空间分区系统，在Android R版本开始引入，目的是为了解决system和vender等分区size不能动态调整的问题。应该装的是一些软件安装包？ | |
| dtbo.img | 设备树？可以超频刷新率用 | |
| gpt_main0.bin | gpt头和分区表 | |
| gpt_backup0.bin | 备份 | |
| NON-HLOS.bin | modem image负责处理通讯协议相关的基带镜像 |