What's the SD difference

[danmdan]

My S3 has an App called "My Files", this in turn shows I have --

extSdCard (11 items) and sdcard (24 items)

I assume one is my 32G micro-SD card, if so what/where is the other ?

 

[SUroot]

/extSdCard is your micro SD card.

/sdcard is the "internal SD card".

Perhaps my post here will help understand /sdcard

http://androidforums.com/internatio...ot/594643-rooting-first-time.html#post4784218

 

[danmdan]

Thanks for that clear note.

Now if it really is an internal SD card, and not just a memory chip - I do wonder if it is changeable - and easy/difficult to do so ?

 

[SUroot]

No. Its eMMC which means its embedded flash memory that takes on the properties of MMC (multimedia card) without actually or physically being one

/sdcard is just a mount point of a partition on the eMMC that is named the same as the microsd card is in other devices so you can get away with not buying one

 

[EarlyMon]

Thanks for that clear note.

Now if it really is an internal SD card, and not just a memory chip - I do wonder if it is changeable - and easy/difficult to do so ?

It's not an actual card.

A lot of it is terminology as /sdcard is referred to as internal sd, but its a partition of the built in memory so its not truly an sdcard in itself.

Android expects to find something at /sdcard.

On conventional phones, that points to an actual card.

On extended storage phones like this one, it's simply a partition of the built in storage chip.

 

[SUroot]

I think you were ninja'd

 

[danmdan]

Ok guys - last question on this thread - does the S3 have any problems with using a 64G SD card ? I do a lot of video, so would prefer to use the biggest possible SD card.

 

[SUroot]

No problem.