A file system is the logical structure to organize (store, retrieve and update) data on a storage device.

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27
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2answers
160k views

Where Android apps store data?

Could you list all possible directories where Android apps may store data, providing description what kind of data are stored in each directory?
0
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0answers
33 views

Filesystem shows strange but phone working fine

I've got a strange problem with my Asus Zenfone 2 (ze550ml) filesystem. I wanted to copy photos and videos, so I've connected the phone via cable (a native Asus one) to the PC (Win 10, adb and ...
0
votes
0answers
58 views

Samsung Galaxy S 4 Mini shows my external SD card is blank or has unsupported filesystems. How do i fix this?

My Samsung Galaxy S4 mini says that my external sd card is blank or has unsupported filesystem. When i tap the notification it gives me only a option to format but i dont want to because i need the ...
20
votes
2answers
99k views

How to access /storage/emulated/0/ from PC?

I want to export the settings of the K9 mail app. This app exports a settings file to /storage/emulated/0/com.fsck.k9/settings-4.k9s. But if I connect my Nexus 4 to my PC I cannot see such a file or ...
1
vote
1answer
725 views

/system cannot be remounted as RW, even when rooted (Sony Xperia E3)

I rooted my Sony Xperia E3 (D2203) a while ago using Kingroot, which worked flawlessly. Before rooting my device, /system could be accessed, which is how root was installed in the first place. ...
0
votes
1answer
796 views

Uninstall programs that are not visible in Application manager

I have an Asus Nexus 7 that is full of games that take up all 29 GB of memory. The kids installed these games, and they are not visible in the Application Manager. Perhaps they were installed in a ...
1
vote
0answers
29 views

linux kernel not seen from android filesystem?

I'm reading 'embedded linux' and in chp.6 "filesystems" there is a figure that I do not understand. here it says that the 'linux kernel' is not seen from android filesystem. This give me some ...
0
votes
1answer
852 views

Access Android System Partition from Linux

What is the best way to access the Android system partition via USB of any device with Linux (not rooted device) Need to change some files in the system folders...
1
vote
0answers
123 views

alternatives to add NTFS support to Android kernel

I would like to enjoy of NTFS support for my Android device. The USB-OTG Helper app and also this patch - sdcardfs.ko couldn't help with that. With regard the patch sdcardfs.ko, I have done all the ...
0
votes
0answers
36 views

How to recover file system programs witch are in locked file-system due to multiple restarts?

Turns out my charger wire was broken and phone was charging and restrating non stop cause couldnt get enought charge. Later when charged with normal wire these restarts made some filesystem bad and ...
0
votes
0answers
51 views

MicroSD Card Malfunction after Few Days of Usage

I have a 16GB SanDisk (supposedly) MicroSD card which I am trying to use in my "cheap" Android phone (a Mlais MX28) with Android 4.2.2, kernel version 3.4.5 and full root access. When I initially ...
0
votes
0answers
47 views

mounting CIFS failed on NTFS volume (enabled by Paragon app)

To enable NTFS volume for my Android (v4.3 - Kernel 3.4.0+) device (Phone), I've installed Paragon exFAT, NTFS & HFS& app and successfuly mounted my NTFS external sdcard. The problem is that I ...
-3
votes
1answer
816 views

Error “Function not implemented” when creating symbolic link

I'm trying to execute this command busybox ln -s "mydir/" "$PWD"/mylink in order to create a symbolic link from mydir; that, I am receiving the following error ln: /mnt/shell/emulated/0/mylink: ...
0
votes
1answer
129 views

Droid Explorer does now show hidden files

Droid explorer does not show hidden files. Some "root explorer" apps show hidden files eg. on /data/data etc., but Droid Explorer does not. Of course, ES File Explorer also does not show these it show ...
0
votes
0answers
223 views

Editing personal dictionary on Android 6

As it seems Android blocks third party apps from editing the personal dictionaries for some reason. I just upgraded from Android 4 to 6 and want to import my personal dicitonary, but the apps I've ...
0
votes
0answers
73 views

Hundreds of empty folders in the root directory

Everyday a few folders with names like these .1452883637809 .1452883650035 .1452890345647 and so on appear in the root folder both of the internal storage and the SD card. They are all empty and ...
3
votes
2answers
587 views

Where should I install Toybox?

I own a rooted Samsung Galaxy S Relay 4G running stock Android 4.1.2. If you have Android 6.0 "Marshmallow" or better, then you have Toybox. This is a package of command-line tools, handy for ...
0
votes
1answer
273 views

Formatting internal MTD storage: selecting block size?

I have rooted china N101-II tablet with CyanogenMod after flashing custom ROM. Internal MTD storage is 32 GiB large and custom ROM flashing make different layout to internal partitioning. Thus /data ...
0
votes
1answer
181 views

why my nexus 6 dosn't open as a folder on my laptop

three month ago I have bought a phone Nexus 6. Firstly when I connected it to my laptop all its folders appeared on a window on my laptop. Some time later on I tried to move some files out of the ...
3
votes
0answers
379 views

Create sdcard0 symlink on 6.0.1 for WhatsApp compatibility

I recently switched from a Galaxy S2 running CM 10.2 (Android 4.3.1) to a Nexus 5 running 6.0.1 (stock rooted). My goal was to migrate all my WhatsApp data (history, media, etc.) over to the new ...
1
vote
0answers
95 views

how to mount permanently in Android

I've successfully mounted my router device's sdcard on '/mnt/routersd' as follows : #!/system/bin/sh su -c 'busybox mount -o remount,rw /' su -c 'mkdir -p /mnt/routersd' su -c 'busybox mount -o ...
1
vote
1answer
106 views

remount /mnt as read-write

I am getting error "Read-only filesystem" when trying to add a new directory in /mnt via Terminal Emulator. So, I tried : su busybox mount -o remount,rw /mnt in order to remount filesystem for /mnt ...
2
votes
1answer
1k views

No USB Storage Mode on GalaxyNexus running 4.2.2

I have a GalaxyNexus running Android 4.2.2 I just want to quickly backup some data files to my PC. I'm pretty sure I've done this many times before, but I guess not on this phone. I have the Android ...
0
votes
0answers
29 views

How do i get files off this phone?

I use linux, I made a video, and tried to send it to my self. Then it did not send, the file is over 20MB, and would not attach to an email. Fine, I used AndFTP to send it to my ssh server. It got ...
0
votes
3answers
76 views

Available memory of a 16GB microSD card?

Out of my newly bought Class 10 16GB microSD card I am getting only 14.71GB. Is this normal?
0
votes
0answers
191 views

Is it possible to locate deleted messages (sms) on a zte maven?

recently cleaned excess crap from friends ZTE812 MAVEN only to discover they wanted to keep the text messages. I haven't factory reset, only surface delete. Is it possible to recover those messages, ...
3
votes
0answers
40 views

Setting creation time attribute on exFAT to “atime” from ext4

I have to move files from my internal storage to the SD Card. While cp -p does its job fine to an ext4 formatted card, moving/copying files to exFAT only keeps the file modification time but sets ...
3
votes
2answers
5k views

Is it safe to delete all empty folders in Android?

Almost every Android "cleaning" app (such as SD Maid) includes the ability to delete all empty folders. In operating systems such as Windows, this is generally not a good idea. Windows applications ...
1
vote
0answers
78 views

Internal storage - free and occuppied space do not add to total

On Sony Xperia Z2, I have 5.6 GB on /storage/emulated/0, then 2.3 GB in /. However, the whole internal storage has 12 GB, and I can only see under 2 GB of free space. Where is the remaining 2 GB?
5
votes
0answers
31 views

1.5 GB limit on file seek addressing?

I am trying to transfer 5.4 GB file form an android internal memory (Sony Xperia Z2). But it seems that most applications have issues addressing the file beyond cca 1.5 GB. They just can't read the ...
2
votes
1answer
289 views

When should fstrim run?

Based on this cyanogenmod forum thread, I tried to address the delay in running applications and switching between applications on my Galaxy Nexus running cyanogenmod with Android 4.4.4 by running ...
0
votes
1answer
356 views

data/app folder showing wrong folder names

After messing around with the xposed framework and installing lots of modules, I got into a bootloop (classic !), but I knew the solution was to add a disabled file in ...
2
votes
0answers
340 views

Periodic filesystem checks are a very good idea. Do any major flagship devices ever do them automatically?

It's a very good idea for your OS to do periodic filesystem checks. Here's why. Microsoft program manager Kiran Bangalore writes that there are certain cases in which a filesystem can become ...
18
votes
2answers
18k views

Which filesystem do Android use?

I know that android uses FAT32 for SD cards and mounts them via FUSE. But which FS is on / ? Some kind of ext? zfs?
1
vote
1answer
284 views

Moving /storage/sdcard0 from NAND to a removable MicroSD card: will it break anything?

Background information I own a Samsung Galaxy S Relay 4G running Android 4.1.2. It comes with 8 GB of built-in NAND flash, which is almost full by now. Luckily, it also has a MicroSD card slot. My ...
1
vote
1answer
130 views

Can I write to my device's root filesystem? Will my changes persist across reboots?

When I open up a terminal emulator and run the mount command, it indicates that my Android device's root filesystem (/) is of filesystem type rootfs. What is rootfs? Can I write to it? Will my changes ...
1
vote
0answers
153 views

Phone stuck at boot logo, cannot wipe data/factory reset

I will explain what happened: I opened up terminal emulator then typed cd /system/xbinls fsc* then /dev/block/vold/179:17 then mount then my tab got stuck and then it switched off automatically. ...
1
vote
0answers
117 views

Use a disk image for Link2SD's 2nd partition

Well, this question is targeted for those few devices without support for an external SD card as well as merged storage, for example my Micromax Canvas Knight A350. I thought this up today: If we ...
-2
votes
4answers
10k views

How can I make the system folder writable without rooting?

My device is Sprint Samsung Galaxy S III Model number: SPH-L710 I want to do this, because I want to stop the camera shutter sound. And I don't want to root my device.
0
votes
0answers
1k views

File systems supported on Nexus Player

I have a Nexus player running Android 6.0 (Marshmallow), and would like to connect a USB hard drive (through a USB OTG cable) to it and watch videos off it. I've installed ES File Explorer and Kodi. ...
0
votes
0answers
60 views

Filesystem check

I'm using a Trio Stealth Gen 5 on 4.5 I think with some crashed reboots I may have messed up my filesystem. I've never used Linux prior to this, but some Google searching lead me to a few things. I ...
0
votes
0answers
95 views

After Custom Rom My Device Become Very Slow

I am using QMobile Noir A8 (it's a Pakistani Android device) with custom ROM. I am having a problem with the custom ROM. My device becomes very slow when I connect to the internet. All apps (Facebook, ...
0
votes
0answers
17 views

Location of temporary sound files for Auri?

Auri is a text to speech app for Reddit. I'm trying to download the sound files it creates, and if possible load them with the app offline, though neither are supported features. I'm using a rooted ...
1
vote
0answers
101 views

Incomplete file list when browsing file system of Nexus 5 in Windows 7 / 10

I connected my Nexus 5 (Android 6.0) to my Windows PC via USB (tried both MTP and PTP mode) and noticed that the file list in Explorer was incomplete. I compared the file list in ES on my Android ...
0
votes
1answer
82 views

Nexus 5 with zero-length partitions

So something is wrong with either the partition or the eMMC. TWRP is unable to erase/reformat/repair any partition (console lists partitions that fail to mount: /data, /data/media, /system, /cache) ...
1
vote
1answer
58 views

File size in different devices [closed]

I'm working on an Android app which downloads new-updated resources from a remote server whose platform isn't specified yet. The app compares the size of the pre-downloaded local file and the remote ...
2
votes
1answer
146 views

How to clear a Folder (e.g. Downloads) automatically on a regular/scheduled basis?

There is a folder on an Android phone that continually fills with junk. Instead of clearing that folder manually on a regular basis, how can I setup up a way to have that folder be automatically ...
0
votes
1answer
67 views

How does the Linux filesystem on Android get mapped to “Computer\PhoneName\Phone” on Windows 7?

I am trying to figure out, when I use adb shell I see a filesystem with directories such as /storage/emulated/0. When I connect my Android phone to Windows 7 I see something like the following folder: ...
6
votes
1answer
5k views

Android limited to 1 hour video recording?

At the moment, I am using the standard video recording app for video recording. I have found that the recording automatically stops after just 1 hour. Is this a deliberate limitation placed on the ...
0
votes
0answers
28 views

What is the point of separating the kernel and the rest of the operating system?

With all of the Android devices that I've seen, the Linux kernel and the initial RAM disk are placed in (the poorly named) boot.img and the rest of the operating system is placed in system.img or ...