Questions tagged [file-system]

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

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How to change device model in build.prop?

The following is my build.prop file. I just can't find the device model option so I can modify it. I'm trying to change my device model to Pixel XL so I can run Google Assistant properly. # begin ...
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2answers
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What file systems can I use for a 128GB sdcard on Android 7.1, used as portable storage

I can't find an answer to this on StackExchange. I have a phone running beta LineageOS 14.1 (Android 7.1), and a 128GB SDXC card which I want to use as portable/shared storage between devices. I ...
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1answer
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By Mistake i deleted system folder from root file and my mobile was rooted from then my mobile not working what can i do?

By Mistake i deleted system folder from root file and my mobile was rooted from then my mobile not working what can i do ? usb debbug is off flah file not found "reach cogent colours" plzzz help me ......
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Gparted for android

I would like to partition my sd cards using gparted on android. I would like NTFS support along with the standard EXT formats. Is this possible?
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4answers
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Is there a way to access the phone filesystem from computer, wireless?

Known solutions: USB Mass Storage (sadly, mostly deprecated on Android 4, 5, etc.). MTP, and I know its benefits (a lot) and its weaknesses (browsing on a MTP drive with Windows Explorer has poor ...
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What is actually happening on the rom when I rooting android device? What is happen on rooting? [duplicate]

What is actually happening on rooting? Is it change file system, or modify file or add new files or add new configirations....etc? I know the meaning of rooting but I want to know how it dowing.
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1answer
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Will a factory reset launch to the android stock launcher or can I use my own?

I was silly enough to uninstall my android 4.2.1 stock launcher and instead, installed nova launcher. I works 100% but this one annoying message keeps popping up every 5 seconds saying that the ...
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2answers
5k views

What file system can I use on SD Cards?

I stupidly changed my new SD cards file system to NTFS for using with my laptops and my Android tablet. Now I realize my tablet doesn't want to see the card when I put it in. And now I bought 2 USB's ...
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Some folders and files not showing up on PC when connected via USB

My phone doesn't have an SD card in it right now, so all storage is on internal memory. I have a bunch of folders in my Pictures folder that don't show up on my PC when I connect it via USB (but most ...
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Can I use ext4 on my SD card on a non-rooted android 5.1.1 (lollipop)?

I'd like to use ext4 on my SD card, or anything besides fat32 really. Something which supports files > 4GB in size. Unfortunately, unlike it apparently was back in the day, now ext4 and even exfat-...
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1answer
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Why Changing Permissions For Some Systems Files is Not Allowed?

I have a rooted tablet and while browsing my files, i came along this folder: (./0/android/data) in the internal storage ... lets say (X-plore file browser) has the folder: (./0/android/data/x-plore)....
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Mount “/” andriod in pc for scan with av

I want a method for scan all andriod system from my pc with a antivirus, for example I've a backup with CMW, but the problem is that i need extract "tar" files and delete virus, then repack tar... Do ...
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1answer
1k views

Make the internal SD card storage act like normal Ext4 storage (with file system permission management)

Some people have apparently managed to get Ext4 formatted SD cards to work in their Android devices, allowing them to get file system permission management. I don't have an SD card in my phone, but I ...
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2answers
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adb pull file from /data/data

Using adb with a rooted mobile, a common method to pull files only accessible to root (like the ones in /data/data) is moving those files with root to the SDCard attached to the mobile (which is ...
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adb push not working on /system, read only

I can do adb push to /sdcard/ location but not /system on my android device. sudo adb push lib/audio.primary.gmin.so system/lib/hw/ failed to copy 'lib/audio.primary.gmin.so' to 'system/lib/hw/audio....
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Running out of storage space. /data/log/ directory not found

My Android S5 is running out of internal storage. Issuing du reveals: root@kltetmo:/ # df Filesystem Size Used Free Blksize /dev 846.4M 56.0K 846.3M ...
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File explorer is empty for nougat emulator?

In Device Monitor File Explorer remains always empty.why? For other emulator is works perfectly fine.Please Suggest me solution
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1answer
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Nova Launcher Prime help -corrupt tab

PHONE: samsung prevail 2 sph-m840 - ROOTED Phone APP PROBLEM: Nova Prime 4.3.1 Apps&Widgets Drawers , Drawer Groups, Tabs. Problem: I made several tabs but one of them appear to be corrupt. It ...
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How to fix Android file system error

There's a corrupt file on my (rooted) Android device at /data/anr/traces.txt when I cd to this directory with adb shell, or try to do cat or rm on this file I get I/O error Most importantly it ...
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656 views

can't push file to system/bin using adb in android 5.1

Using adb push file to /system/bin return read-only file permission If i changed mode returns the same error I'm trying to push su to /system/bin, why it fails on 5.1, and seems to work on older ...
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1answer
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How to check the VPN setting created by an app on an Android device?

Many VPN apps would create VPN profiles on the Android device. Unlike VPN profiles create by the user, they cannot be edited, and therefore the user cannot see the setting of said profile. With a ...
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1answer
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How to transfer files I created programmatically back to my PC? [closed]

I created JSON files on my Android using something like this: https://stackoverflow.com/a/33572815/1075211 The files are now stored in /data/user/0/com.xxxxx.collector. But how do I now transfer ...
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137 views

Hidden files: Can I delete them?

I can see some hidden files on my android device, named as {[HIDDEN]}xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.mp4_encrypted_new (file name length is 32 characters long, in the place of x, actually it is mixed ...
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1answer
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Why is Android showing a different hosts file once my system is booted versus in recovery?

In the past, I've used a modified hosts file on my system that I place at /system/etc/hosts. The process is pretty straightforward Boot into recovery using a custom recovery. Mount /system read-write ...
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1answer
5k views

What does the /data/system folder store and its significance?

I know that /data partition contains user-generated data (/data/app - user apps, /data/data - app data, etc). But what is the /data/system folder used for, and does it have any significance in the ...
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How to mount an Android sdcardfs formatted microSD card in Linux?

Suppose I take out the microSD card from my Cyanogenmod 13/Android 6 phone, put it in a card reader and want to access it within my Ubuntu desktop. The first partition (16M) mounts automatically, ...
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1answer
2k views

How to browse files on my PC from my Android phone via USB?

Through USB, I can readily browse my Android's file hierarchy using my PC. How can I browse files on my PC using my Android 4.4 device? The "ES File Explorer" app doesn't appear to facilitate this. ...
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what's the difference between mount point /sdcard & /sd-ext in recovery.fstab

This is the recovery.fstab # mount point fstype device [device2] /boot mtd boot /cache ext4 /dev/block/mmcblk0p39 /data ext4 /dev/block/mmcblk0p40 /...
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3answers
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Need absolute path to “Download” on Android 6.01

...Due to the developer / maintainer of Terminal-IDE moving on, I'm trying to find equivalent capability and after hours of research found "Terminal Emulator for Android" (which is the same app as "...
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1answer
471 views

What is the difference between File based encryption and Full disk encryption. Can someone explain in brief

Can someone explain what is difference between File based encryption and Full disk encryption. I had gone through Android Developer Page but it is not clear. Can someone explain with examples.
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What does /mnt/asec directory contain?

What does /mnt/asec directory contain in Android? Can someone explain in brief?
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1answer
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How to know my nexus device is file encrypted?

From android n new feature called file encryption is supported. How to identify if my device is file encrypted. If i create any new file inside /data parition using touch . Will i will see that file ...
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2answers
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How does Android audit file actions?

I was wondering if there is a log of when an application read or write data. Furthermore, how would I go about accessing this data? If there is none, is there another way you guys would think of ...
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Check and fix “formatted as internal” / encrypted SD Card i/o errors

Unfortunately I seem to have a problem with my filesystem on my as internal storage formatted SD card. My problem is kind of related to this thread so I think it is worth mentioning here. When I was ...
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Many files are visible from Android but not visible from USB

I was finding many times that many files are visible from within Android itself, but not visible from USB. Latest example is OSMTracker files. Here is the folder visible from Android itself: And ...
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874 views

Install system app fails

I have a Samsung Galaxy S7 which I have rooted. I am attempting to move app updates to /system/app to save space on my /data/ partition. I follow the standard process (not enough points to link yet): ...
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1answer
2k views

Cannot edit, delete or copy any file from /sys directory in Android?

I can't edit, delete or copy any file from /sys directory in Android. How can I fix this? I have root access. I made /sys readable and writable using Root Explorer and Root Browser but that didn't ...
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1answer
1k views

How to make bind-mounted (mount -o bind) folders visible for non-root users?

I want to mount-bind an app data folder in /data/data/... to a user subfolder in order to automatically synchronize the contents for backup purposes. As root I use the following command: mount -o ...
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1answer
1k views

Android locked MicroSD card (all files read-only)

I own a Wiko Rainbow with Android 4.2.2. Out of the blue my MicroSD card got locked and I can neither create nor delete any files on my phone (such as photos). At first, I did not even understand why, ...
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2answers
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read-only file system on emulator

I need to change /system/etc/hosts file on my emulator, and no matter what I do, I get "read-only file system" error. Does anyone know how to do it? I tried editing the file manually as su in adb ...
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I can't remount /system as rw. I get an error message: mount: Read-only file system

I'm using a rooted Huawei G7 and i'm trying to install BusyBox, but I keep getting an error. I'm 100% sure this error is because there is some weird write protection on /system. I know this because ...
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how to restore mount points

i have a bricked device , after 20 hours of flashing and searching , i found that my device lost some mount points here is the the mount points of my device and here is the mount points of a ...
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How do Android Communicate with Storage or External Storage?

I Wants to know that how the android os is communicating with the storage devices, as because I have two USB Devices from same vendor (ScanDisk) and of equal size (8 GB) and having same File System (...
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1answer
889 views

How can I know which file system is used for my internal storage?

I want to know whether my internal storage is formatted as exFAT, FAT32, ext4, etc. How can I tell? I run rooted Android 5.0, if it matters.
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1answer
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How to create a file folder for use with Listen Audiobook player

I can't figure out how to use this Listen book player, I've Installed. First I see this. Hitting OK, I see this: I can't understand how to tell it where to find my books. I've downloaded one ...
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How to know the device's microSD card reader specifications?

In my opinion, for clarity and transparency before purchasing a device, it would be necessary that manufacturers clearly indicate on the data sheets of their devices more information about the device ...
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1answer
216 views

When an app is moved to an external microSD card, to where is it moved? [duplicate]

In Android KitKat on many devices, it is simple to move an app to an external microSD card. It's as simple as Settings -> Apps -> [Select the app] -> Move to SD card. For apps whose manifest allows ...
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1answer
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Why is Android 5 corrupting my SD card (moving files to LOST.DIR or losing them)?

I've been using VFAT formatted SD cards for years to transfer files between devices (tablets, cameras, GPS, computers) under different OS (Linux, Windows, Symbian, Android) without, as I recall, any ...
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1answer
7k views

How to resize the /data F2FS partition

Context: I wiped all the partitions from my Moto G device with the TWRP recovery and installed Cyanogen 13 on it. Then I had issues when enabling Encryption: the phone just restarts but does not ...
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1answer
872 views

Internal memory (sdcard0) not writable - Android 4.3 - Xperia T (LT30p)

After a bootloop that I experienced after messing around with Android, I flashed a stock ROM to my LT30p using FlashTool. Everything went smoothly, except for the fact that I can't create files in ...

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