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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13 views

How to access “Work Profile” files via USB on my PC

I've got an Android "Work Profile" on my phone, kind of setup as explained here. It's trivial to access normal Android files. Plug a USB cable into my phone and PC, select "File ...
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22 views

Is it possible to use dd command to re-write the entire /system partition

Phone: Mediatek Symphony V32(root privilleged) My /system partition is messed up, I accidently deleted some system apps, and also some bin files. Although it's functioning properly, I pretty much want ...
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Moved music files now music player not detecting any of them (not like other music missing problems )

I have music files in my storage and i added 2 new songs by an app the app downloaded them but not in my music file in a new music file that is called downloads it has all music and apks and other ...
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39 views

Any way to force change an Android device screenshot folder location / destination?

Is there any way to force an Android device to change it's screenshots file folder / destination location? Like ADB command or something? Something that is native and permanent? Something that isn't ...
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31 views

How to get UNC path of folder on phone?

When I plug my [Android 9] phone into my [Windows 10] PC, it appears in the Windows filesystem within This PC and has a (virtual) folder within it called Internal shared storage, with various folders ...
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36 views

How to find the creation date and time (aka timestamp) for a file or folder in Android?

In Android, it is simple to view the modified date and for any file or folder. Just about any decent file manager (such as Solid Explorer) includes this functionality. But how do you view the ...
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37 views

How can I get photos and videos to directly save in system folder? (phone is rooted)

I integrated the SD card with phone memory to get more storage. Well, stupid decision. Now something went wrong and only the system folder can be seen. Nothing anywhere else. Thus, I can't save ...
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36 views

Mount Samsung S10 file system to Windows 10

Is it not possible to mount and browse the file system with Samsung Galaxy S10 if I connect it to Windows 10? With Galaxy S8 it was possible and I could easily traverse the file system of the phone to ...
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1answer
106 views

Android lock screen bug after system files deleted

I accidentally deleted some system files ( I was on adb connection) . And lock screen stopped working right after. The issue is that, I have a lock pin/pattern/password, but system says, it's not ...
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49 views

Use or Access Large NTFS Cluster Sizes ( eg 2048 kb / 2049 kb / 2M or 2MB ) in an Android (or Linux) OS?

I have a external media storage drive where I (believe that I) have formatted the partitions as 2048 kb (or 2,048 kb for any Googlers searching) cluster sizes and there are a couple of smaller ...
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1answer
89 views

Android can't view local content after OS upgrade

After upgrading to Android 10, I am not able to use the Files app to view local files on my phone. If I run Files and view the Downloads folder, for example, it merely says "Can't load content at ...
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Exfat misbehaviour on SD card

I got a new 512Gb SD card for my Samsung Galaxy J7 Crown and started experiencing problems when attempting to load my music folder onto it. Unmounting the card and inserting into a Win 10 computer, ...
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1answer
61 views

How much of the Android filesystem is visible over MTP?

When I plug in my Android device to my computer it gets connected as a media device under MTP mode. I can browse a bit of the folders on my device via my computer. I'm wondering how much of the device ...
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107 views

How to share files across multiple user in Android 10

I am implementing a app in which I am creating one file using openFileOutput API in Android. The file is saved to /data/data/com.xx.xx/files/ Now when I am switching to secondary user(multi user) I ...
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How to make a text file read-only in a non-rooted device? [duplicate]

I wanted to make a file read-only (440)in internal storage but it shows "failed",as it seemingly requires root permission but I can't unlock bootloader as of now so is there any means we can do the ...
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1answer
324 views

How do I backup my website homescreen shortcuts?

I have many websites which I constantly access thru my phone, but they aren't bookmarked on Google, they're just added to my homescreen as a web shortcut. Of course Windows is something else ...
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985 views

What are .xlog files and what can they be used for?

Im cleaning the storage on my S10+ and I noticed in the WeChat folder (Tencent) there are a bunch of .xlog files totalling nearly 3gb of space. I know the controversies of using WeChat but I rarely ...
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76 views

Is there a way to change the type of file system format an android device can read?

I am trying to write files larger than 4GB to an SDCard. The problem is that the andorid device I have can only read Fat32 file system formats in an external SDCard. What I tried: I thought that, if ...
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153 views

How to open huawei file safe on pc

So lately my honor 8x has been stolen and i wanted to get my files from the file safe on the device on my pc.How could I
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49 views

Accessing android app asset files

I am trying to extract some assets from a mobile game that I play. I have extracted the game files onto my PC, however have hit a wall when trying to view the assets. I am able to view some assets (...
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1answer
55 views

How to specify the directory path on external memory card?

An app currently saves files to "mydir" on the internal memory: /storage/emulated/0/mydir Instead, I want the files saved onto external memory card, but I am unable to figure out what is the right ...
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22 views

Securely storing keyfiles with authentication and alike

I am using Keepass as my password manager. I am using a keyfile for securing access to my database. However when I want to do the same on my android phone I have to store the keyfile in my phone ...
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1answer
40 views

Folders missing in (some) apps

I have a strange issue. Just added some new folders in my Music folder after purchasing some new albums. Created them using Total Commander like always, transferred some mp3 files via ftp to the ...
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Files deleted via mtp still consume space

When I delete a few large files (part of music collection, ~20GB of flac files) during mtp connection (on computer), it disappeared from Android FS, but, according to FS analysis, still consume space. ...
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47 views

Where can I setup a persistent directory on my Android phone with a symlink-compatible filesystem?

I want to setup a directory on an Android phone which provides a similar experience to a traditional Linux command line. Normally I would work from my home directory but HOME in this case resolves /...
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31 views

Unable to change main system sounds coming from previous installation - Files names wrong cannot be updated on Android 9

I tried to change the sound for notification on my Samsung Galaxy S9+ (installed one year ago) When I hit the "name - button" of the sound, a panel is opened (see joined screen copy), it shows the ...
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967 views

Unable to flash custom ROM using TWRP, successfully installing AOSP extended, rebooting the device. Upon reboot it boots to TWRP instead of ROM

Successfully installed the AOSP Extended image for 'nicklaus'. Whenever I reboot my device to boot my device, instead of booting to the custom ROM my device automatically boot itself into TWRP ...
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1answer
92 views

Where Firefox for Android is keeping add-on generated files?

I want to find a folder, where Firefox for Android is keeping files generated by installed add-ons (list of saved tabs in OneTab, for example). I've tried to do a full root file system search (e.g. ...
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2answers
858 views

How to create filesystem in TWRP? Getting error: “Unable to format to remove encryption”

The screen appears after booting into TWRP and trying to format memory: I was trying to flash a custom ROM using TWRP recovery but it's showing Unable to mount storage & Failed to mount '/data' (...
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80 views

How to permanenlty disable mobile data by renaming or editing files or directories on rooted-device?

Yes, I read the answers to the question by the link Disable mobile data permanently but I'm interested in a solution related with directories and files on rooted-device and not in using an application ...
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123 views

Monitor and identify which apps create a specific file/directory

From time to time, there is a directory (and files inside of it) that is created on the internal memory of my device. I keep deleting it, but after a few days/weeks, it's back. The folder in question, ...
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1answer
6k views

How to share files between regular account and work account?

I've researched and I cant find anything. What I am missing?
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60 views

/system/media Directory

First of all, I am currently learning about Android security and wasn't sure if to post it on the Android or Security StackExchange, either way here is my problem... Investigating the content ...
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1k views

How to create and use multiple partitions on external SD card with different filesystems (Ext4, exFAT, NTFS)?

I want to create 4 partitions on external MicroSDcard through ADB shell commands, not on Windows or Linux. Also want to show all partitions in Android GUI (SETTINGS > STORAGE > SDCARD) and make them ...
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1answer
77 views

How to move 7GB ext4 partition on external SD card to 30GB partition on another SD card?

I had rooted my Android Lollipop 5.1.1 phone and installed Link2SD and linked installed apps on ext4 7GB 2nd partition of external SD card of 16GB size . The apps installed occupied 6.5GB space and I ...
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1answer
149 views

How to erase unsued space so that dumping userdata partition creates a sparse file of small size?

When I create a gzip image of userdata partition (/dev/block/mmcblk0p29) it creates huge 6.8GB image, previously it was 350MB. Is it possible through command-line to erase or wipe or delete space on ...
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67 views

How does Android treat files bigger than free space remaining while recording?

I've spent the entire day trying to solve this issue, it seems paranormal but (sadly) it's true and I didn't find a way to solve it. Yesterday I recorded a very important video using my Xiaomi and ...
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1answer
543 views

How to read ext4 filesystem without mounting on a non-rooted device?

I perfectly know it is not possible to mount an ext4 partition from a USB key without root. But in my case, I just need to read a password inside a .txt file (I don't have a PC right now and in the ...
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28 views

Create a link to a folder on homescreen with native filemanager on Android 9

I want to create a link to a folder that's on my sd-card. However if I long press on the native file-manager the only link it offers to open up directly is the images-folder, wich I then could drag to ...
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88 views

Recovering files from Android phone without usb port working and without root

I need to recover deleted files from samsung android phone but it have damaged usb port and no root privs. Is there a way to achive this? I thought about cloning the internal storage to SDcard or via ...
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53 views

File showing on device not showing on computer

I'm developing an Android application where some data is exported in a json file written in the Download folder. My objective is to get this file from a computer (when the device is USB connected). ...
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2answers
394 views

How to create a shortcut to some file in another folder?

I have a PDF on the folder ExtSD/Documents/. I need to make a shortcut of this file to the folder ExtSD/CurrentlyReading/. So simple on Windows... Apparently never asked on Android. If it's of any ...
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60 views

How do I search the SD card with standard Android File Explorers?

My Android Pie SD card storage looks like this: . ├── Android | ├──data | | ├── com.amazon.mShop.android.shopping | | | └── ... | | ├── com.amazon.venezia | | | └── ... | | ├── ...
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1answer
134 views

Why bowsers cannot download files to storage (path looks /dev/null/Download)?

The phone is Samsung Galaxy Note N7000. For the last few years I use NightOwl custom rom (Android 7). I do not remember when I faced with this problem, maybe after repartitioning with REPIT (but ...
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1answer
21 views

I don't know how these files got in my photos

I get photos saved in a folder named files, I don't know the people in the pictures . there not photos I took ! How could they have gotten into my phone? and details show /storage/emulated/0/Android/...
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159 views

My SD Card gets corrupted every time my phone reboots or shuts down

I have a 32GB SD card, however, every time I mount it into my phone (Huawei Y5II), it shows a message that the SD card is corrupted and I should reformat it. I backed up my files to my PC, and ...
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373 views

Can disk quotas be disabled?

$ cp a b Cannot write to 'b' (Quota exceeded). # df -h . Filesystem Size Used Avail Use% Mounted on /data/media 110G 102G 7.8G 93% /storage/emulated I can copy the file perfectly fine in ...
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80 views

Is it safe to delete the Android “.HiddenCabinet” folder?

I wish to remove the entire Hidden Cabinet (".HiddenCabinet") directory tree and all its components. Is it safe to simply delete that folder without disrupting the rest of the file system? Are there ...
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288 views

How to recover unsaved video file on Android?

I've got a Samsung S9 phone and today I was taking a lot of photos and videos. For one video we pushed record for about 30 seconds and then pushed stop. It appeared to have been recorded. However, ...
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1answer
44 views

Unable to copy the files to /system/app

I am working on i.MX 6Quad SABRE-SD with Android 9. I am facing some problem when copy the some data to system/app from USB Mass Storage, I got error, when I mount the system to write access: ...

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