Apps and SD card - Barnes & Noble Nook Tablet

Many of my app folders on my SD card, and a number of similar folders on mnt/media. Can I safely delete all from the sdcard (how can i tell if they are running off userdata partition?) Can I delete the stuff under media as well as begin setting up my own folders?

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[Q] Help! All Data Lost!

I have just noticed that all of my data on both my SGS2 internal memory and my SD card has gone!
It's totally bizarre! All my apps are fine, my home screens are fine, but all photos, music, and other files are gone.
My internal storage now only contains .android_secure and LOST.DIR, but the weirdest thing is the SD card. It contains all of the default and app folders that were previously on the internal drive, except without any of the user data (e.g. DCIM is empty where it should have photos & videos galore in there). However, the SD card does now contain 9 files called "FILL0", "FILL1"... through to "FILL9" and all of them are 1GB in size. These "FILL" files have no windows file extension.
Does anybody know what has happened here? It looks like the phone has suddenly taken all the internal data and copied it to the SD, while at the same time removing anything in any way precious to me and possibly storing it in these "FILL" files.
Can anybody make sense of this?
One correction to make on what I said above. I mislabeled my drives, so it's actually the SD card which has the 2 default files on it, and the phone memory that has the rest. There was no copying from the phone memory to SD after all, there was purely deletion of the entire SD, and then deletion & this weird dump of everything into "FILL" files on the phone memory.

[Q] I need clarification about android storage

Hi to all.
I need some clarification about Android storage, please.
How many storage units Android OS have? Including a possible microSD external Card.
Internal Storage, internal memory?! Whats the difference and location in file system folders?
When an app is installed from market where does it go?
In application manager, in most apps there is an option "Move to SD card"...
If I have an external micro SD Card and choose this apps option "Move to SD card" where the heck is suppose to going the app or some part of it? (Data? Apk? Cache?) It's not in external microSD Card! So what is "Move to SD Card".
I'm confused here need some expert (but simple) explanations.
Thanks.
sammmurai said:
Hi to all.
I need some clarification about Android storage, please.
How many storage units Android OS have? Including a possible microSD external Card.
Internal Storage, internal memory?! Whats the difference and location in file system folders?
When an app is installed from market where does it go?
In application manager, in most apps there is an option "Move to SD card"...
If I have an external micro SD Card and choose this apps option "Move to SD card" where the heck is suppose to going the app or some part of it? (Data? Apk? Cache?) It's not in external microSD Card! So what is "Move to SD Card".
I'm confused here need some expert (but simple) explanations.
Thanks.
Click to expand...
Click to collapse
Well in Android you have a couple of partitions. When you install apps from the market their apk files are most commonly found in /data/app/ folder. Their data goes to /data/data/ .You also have the /system/partition where core system files are found along with the system apps. You also have a /cache/ partition and /dalvik-cache one I think. As for moving to SD it moves most of the data and cache I think.
Sent from my LG-P350 using xda premium
Commonly, android phones have 3 storage places:
-internal system space (/system)
-internal user space (/data)
-external space (/sdcard and /mnt/asec)
Apps have 4 parts:
-application file (.apk)
-libraries (.so)
-dalvik-cache (.dex)
-data (gane saves, data bases, xml files, text, etc, that the app stores as additional data)
dalvik-cache and data of apps always remain on internal user space (/data).
The application file and libraries are stored on the memory the app is installed to (if moved to sd card, the are stored in the android secure sd partition /mnt/asec)
When dealing with system apps:
-in deodexed systems, application files go to internal system space system/app. dalvik-cache, libraries and data to internal user space (/data).
-in odexed systems, application files and dalvik-cache go to internal system space /system/app. Libraries and data to internal user space (/data).
Thanks for the replies now its more clear.
When you referer external space /sdcard and /mnt/asec are these in the device or in external micro sd card?
Where do micro sdcard enters here?
Thanks
sammmurai said:
Thanks for the replies now its more clear.
When you referer external space /sdcard and /mnt/asec are these in the device or in external micro sd card?
Where do micro sdcard enters here?
Thanks
Click to expand...
Click to collapse
Micro SD card is located in /mnt/sdcard/
Sent from my LG-P350 using xda premium

[Q] Double Folder in Gallery

I have 2 of the same folders on my phone but one is /mnt/extSdCard and the other is /storage/extSdCard. Is there anyway to just have one folder instead of 2?
These two paths should point to the same directory (folder), its your external SD card, and any folders in there should only appear once in the Gallery. Are you running SD swap or anything else that may have changed your mount points?
They both point to the same directory and no I'm not running SD swap (16GB sd card) so I'm not sure why it does this but it only happens after I add photos to the folder and restart the phone.
If the double folder is only showing after a reboot, maybe the media scanner is getting confused for some reason, it might be worth trying to clear data for the Media Storage app.

Where are the installed apps stored in android?

I thought that the folders in the root of sd card with the names of the apps is their location
But then I saw in the storage option that these folders are labeled others with my custom files I put there
So where is their instalation located?
Installed apps are located in data/app

Disable Android/data folder being created/used on sd card

Hi, I have inserted SD card to my Samsung Note 4 (rooted, 6.0.1) and noticed that it instantly created folders for apps "Android/data/...app..." .
I want to save only media files on SD card such as photos/videos/music, that's it. I have plenty of space for cache files on internal storage.
Is it possible to disable apps creating these "Android/data/...app..." cache files on SD card?
My device is rooted if that helps.

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