Android File System

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SDCard

The mounted SDCard is a storage device mounted to the file system in the typical Linux fashion. On the file system root the /sdcard is a symbolic link to /mnt/sdcard. /mnt/sdcard is where the SD card is actually mounted, but the same files can also be accessed in /sdcard.

  • /mnt/sdcard --- Your removable SD card data is stored here.

The Samsung Galaxy Tab 2 actually has two SDCard mounts, one for a built-in internal SDCard which is different than the device memory on a typical Android phone, and the second is the removable SDCard.

  • /mnt/extSdCard --- On the Samsung Galaxy 2 tablet this is the removable SD card.

DCIM

  • typically /sdcard/DCIM or /DCIM

Android uses the DCF (Design rule for Camera File system) specification. All digital cameras contain a DCIM (Digital Camera IMages) folder in their root directory. Inside this will be multiple folders named nnnABCDE, where nnn is a unique directory number between 100-999 and ABCDE is a five-character alphanumeric string often (but not required to be) related to the camera manufacturer. Image files stored within these folders will have a file name in the format ABCDnnnn, where ABCD is a four-character string (often DSC_ or IMG_) and nnnn is a unique sequential index number.

 

 

Keywords: Android Tablet PC Samsung Galaxy Tab Two 2 FS File System Root Linux

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