Enable IMGFS Step by Step-优快云博客

本文链接：https://blog.youkuaiyun.com/TheGameIsFives/article/details/3771422

Prepare your BSP for Magneto:
Choose/Get a sample BSP for Magneto
Make your block device driver ready for Magneto
      New features, new IOCTLs
Modify/Add configuration files
      build environment, SYSGEN_xxx …
      files in Platform/%_TGTPLAT%/files
“Magneto Pre-Release Documentation”
Build IPL for your device:
    Magneto Pre-Release Documentation
    Bringing Up a Windows Mobile Platform > Developing a BSP for Windows Mobile > Using the Image Update Model > Image Update > Image Update Device Side Features > Initial Program Loader
Build the disk image for your device:
    Set MAKEIMG_BIN_FORMAT=imageupdate
    Set di_debug_info=1, for more error messages
    Memory.cfg.xml
          Bringing Up a Windows Mobile Platform > Developing a BSP for Windows Mobile > Using the Image Update Model > Image Update > Package Generation Process > Image Update Files > Memory Configuration File
    PostDiskimage.bat

<?xml version="1.0" encoding="utf-8" ?>
<MEMORYCFG xmlns="http://schemas.microsoft.com/embedded/2004/10/ImageUpdate">

</MEMORYCFG>

Debug the XIP kernel:
      Persistent storage should be mounted as ROOT(“/”) in Magneto
      Hive-based Registry
      Make sure the drivers and files which are needed to mount IMGFS and persistent storage are all in XIP kernel
      Correct Registry setting
      rgucomp –o boot.hv > boot.hv.txt
Registry setting for IMGFS (1/6):
   HKEY_LOCAL_MACHINE/init/BootVars]
    "Flags"=dword:3
    "RequireCertMod"=dword:1
    "ProfileDir"="Documents and Settings"
    "SystemHive"="Documents and Settings//default.hv"

; Valid Bits for Flags registry value
; If no flags are set, the hive will be stored in the object store.
;
; 0x00000001    Start storage manager in boot phase 1 for hive-based registry
; 0x00000002    Start device manager in boot phase 1 for hive-based registry
; 0x00000004    Start storage manager in boot phase 1 for registry in
;                         external ROM (such as BINFS)
; 0x00000008    Start device manager in boot phase 1 for registry in
;                         external ROM (such as BINFS)

;"Start DevMgr"=dword:1
; It should be equal to set “Flags”=dword:3, and it will overwrite the setting
; of “Flags”

[HKEY_LOCAL_MACHINE/System/StorageManager]
"PNPUnloadDelay"=dword:1000
"Dll"="fsdmgr.dll"

[HKEY_LOCAL_MACHINE/System/StorageManager/AutoLoad/TFFS]
"Order"=dword:0
"BootPhase"=dword:0
"LoadFlags"=dword:1
"DriverPath"="Drivers//BuiltIn//TrueFFS"
[HKEY_LOCAL_MACHINE/Drivers/BuiltIn/TrueFFS]
"UseCache"=dword:1
"AutoDPDMode"=dword:1
"IClass"="{A4E7EDDA-E575-4252-9D6B-4195D48BB865}"
"WindowBase"=dword:c000000
"Ioctl"=dword:4
"Order"=dword:1
"Index"=dword:1
"Prefix"="DSK"
"Dll"="TrueFFS.dll"
"Profile"="TRUEFFS_DOC"
"Flags"=dword:11000
[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles]

; Default values for all profiles
; These can overridden in the particular named profile
; Various Flags
;   AutoFormat - Formats the store automatically
;   AutoPart   - Automatically partitions the store with largest creatable partition
;   AutoMount - Automatically Mounts each detected partition (if FSD driver is available)
;   MountFlags (deprecated)- Flags on how the partition is mounted
;       1 - Hidden file system
;       2 - May contain system registry
;       4 - Mount as root of file system, "/"
;      10 - Mount filesystem as an external ROM filesystem
;      20 - Treat all files and subdirectories as system files
;   The following registry values override the MountFlags:
;      MountHidden - Hidden file system (same as MountFlags=1)
;      MountAsBootable - May contain system registry (same as MountFlags=2)
;      MountAsRoot - Mount as root of file system, "/" (same as MountFlags=4)
;      MountAsROM - Mount as an external ROM filesystem (same as MountFlags=10)
;      MountSystem - Treat all files and subdirectories as system files (same as MountFlags=20)

HKEY_LOCAL_MACHINE/System/StorageManager/Profiles]
"Folder"="Mounted Volume"
"PartitionDriverName"="MSPART"
"DefaultFileSystem"=""
"MountFlags"=dword:0
"AutoFormat"=dword:0
"AutoPart"=dword:0
"AutoMount"=dword:1

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC]
[HKEY_LOCAL_MACHINE/System/StorageManager/MSPART]
"Dll"="mspart.dll"

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC/mspart]
[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles]
"MountFlags"=dword:0
:

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC]

[HKEY_LOCAL_MACHINE/System/StorageManager/IMGFS]
"ShadowROM"=dword:1
"Paging"=dword:1
"Dll"="imgfs.dll"
"FriendlyName"="Image-Update Filesystem"

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC/IMGFS]
"XIP"=dword:0
"MountAsROM"=dword:1
"MountAsHidden"=dword:1

Registry setting for FATFS :

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles]
"MountFlags"=dword:0
:

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC]

[HKEY_LOCAL_MACHINE/System/StorageManager/FATFS]
"CacheDll"="diskcache.dll"
"Util"="fatutil.dll"
"CacheSize"=dword:0
"EnableCache"=dword:1
"Paging"=dword:1
"Flags"=dword:64
"Dll"="fatfsd.dll"
"FriendlyName"="FAT FileSystem"

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles]
"MountFlags"=dword:0
:

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC]

[HKEY_LOCAL_MACHINE/System/StorageManager/FATFS]
:

[HKEY_LOCAL_MACHINE/System/StorageManager/Profiles/TRUEFFS_DOC/FATFS]
"CheckForFormat"=dword:1 ; IOCTL_HAL_QUERY_FORMAT_PARTITION
"EnableWriteBack"=dword:1
"FormatTFAT"=dword:1
"Flags"=dword:14
"MountAsRoot"=dword:1
"MountAsBootable"=dword:1

Suggestions for Debugging:

Verify the contents of your disk image
Check your device drivers
FMD driver, … etc.
Check the media contents in your device
Check the registry settings
rgucomp –o boot.hv > boot.hv.txt