2010年10月26日 星期二

Mobile (CE) File System Diagram

I made a diagram for my study report.

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Key points of this diagram:

  1. When clean boot, filesys.dll will use initobj.dat (in ROM image) to create root file system.
  2. ROM image content ‘flat’ file system, no directory, only files
  3. ROM image will be mounted at “\windows” folder
  4. Folder “\windows” actually contents files in ROM and files in root file system, object store will handle the integration.
  5. External storage like SD card will be mounted at “\Storage Card” folder; Driver can define the mount point name as they want.
  6. If multi external storage exists, device management add sequence ID on the end of mount point name, like “\Storage Card 2”

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