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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26
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2answers
63k views

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 ...
1
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0answers
218 views

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-...
2
votes
1answer
1k views

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)....
0
votes
0answers
59 views

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 ...
1
vote
1answer
995 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 ...
1
vote
2answers
3k views

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 ...
8
votes
2answers
57k views

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....
0
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0answers
334 views

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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0answers
1k views

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
0
votes
1answer
145 views

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 ...
0
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0answers
1k views

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 ...
0
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0answers
654 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 ...
3
votes
1answer
1k views

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 ...
-1
votes
1answer
1k views

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 ...
0
votes
0answers
136 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 ...
4
votes
1answer
246 views

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 ...
5
votes
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 ...
4
votes
0answers
5k views

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, ...
0
votes
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. ...
1
vote
0answers
480 views

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 /...
6
votes
3answers
20k views

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 "...
1
vote
1answer
466 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.
5
votes
3answers
6k views

What does /mnt/asec directory contain?

What does /mnt/asec directory contain in Android? Can someone explain in brief?
0
votes
1answer
306 views

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 ...
1
vote
2answers
398 views

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 ...
1
vote
0answers
1k views

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 ...
0
votes
0answers
337 views

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 ...
2
votes
0answers
867 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): ...
1
vote
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 ...
2
votes
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 ...
2
votes
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, ...
4
votes
2answers
14k views

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 ...
1
vote
0answers
2k views

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 ...
1
vote
0answers
114 views

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 ...
1
vote
0answers
45 views

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 (...
0
votes
1answer
826 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.
1
vote
1answer
376 views

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 ...
1
vote
0answers
80 views

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 ...
1
vote
1answer
215 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 ...
1
vote
1answer
1k views

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 ...
3
votes
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 ...
0
votes
1answer
869 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 ...
2
votes
1answer
127 views

Why file managers badly recognizes SD cards

If I am understanding well...file managers mostly title some part of file system as "SD card" despite the fact that it is not SD card, or even sometimes when the phone doesn't have a slot for SD card ...
-1
votes
1answer
2k views

My /storage/emulated/0 and legacy can't execute scripts

All files in /storage/emulated/0 and /storage/emulated/legacy have permissions of -rw-rw---- and are owned by root and of the group sdcard_r. Even as root, if I do chmod 755 foo.bar it won't change ...
-1
votes
1answer
394 views

Where does the top-level structure come from?

Most Android devices that I am aware of programmed to mount the system partition at /system. All partitions get mounted at folders underneath /. Looking at my device's /proc/mounts shows that rootfs, ...
-1
votes
1answer
2k views

Access settings outside of settings app without a root

Is there a file hidden somewhere in the internal storage that contains all the system setting preferences? I want to be able to access and modify this file (if it even exists) without rooting my ...
0
votes
3answers
261 views

What's the easiest way to sync music to my phone?

I'm now on CM13 (Android 6) and rsyncing in will not work due to permission errors (and the sudo command doesn't exist) So I ask you, are there any programs to sync my music across? I don't want to ...
0
votes
1answer
2k views

how to transfer a file from within system partition on android to desktop

background I'm developing an app that downloads files to the device.. some of these files are acting out and to trouble shoot I want to actually transfer these files to my (mac) desktop and go ...
0
votes
1answer
1k views

How to enable pip, QPython to write to Android filesystem?

I have been following this guide to install youtube-dl on my Android phone. http://www.arulraj.net/2015/11/download-any-videos-in-android-using-youtube-dl.html However, when downloading the videos, ...
1
vote
1answer
5k views

Internal partitions messed up

So, I got a "little" problem, it started a few days ago, I woke up and my device was overheated and stuck in the bootlogo, I went to the Philz Recovery but it started with an startup error about the ...

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