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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6 views

What file systems can I use with my SD card on a Samsung A10S?

I'm using a Samsung A10S phone. I use Arch Linux, no Windows, and I want my phone's SD card to be highly compatible with my PC. The default SD format seems to be vFAT which disallows many special ...
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Is there any Web Browser that supports "File system acces API"? [closed]

The File System Access API is not yet available in Chrome (All chromium based browsers I think), Firefox and a couple of browsers that I know, I want to know if I am missing some browser that supports ...
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How to investigate what is hogging disk space

Even after cleaning all picture and documents, and most applications, on my tablet using standard Android tools, the internal storage is still reported as full. I now experience similar problems on my ...
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How to access hosts file?

I am following these instructions to modify the hosts file (map IPs to names) and it says it is under /system/etc. When I went into my Android file browser, I did not find that directory. Is it ...
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SD Card suddenly not recognized?

Xiaomis Redmi 8 stopped recognizing a 128gb SD card by SanDisk a few months after first usage. The card is not broken, neither is the phones slot. The card works fine in my Samsung M20 and other cards ...
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What is the path to Internal memory on android phone?

I'm trying to remove files from my Internal memory (which is 99% full). In Big Files app, I can find large files, but unclear whether they are on the SD card on Internal memory. E.g., I think this is ...
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82 views

What is GROWTH_TEST and appGrowthLog.txt inside of it?

I recently found the folder GROWTH_TEST on my Samsung phone, and it has the file appGrowthLog.txt in it that says "com.android.volley.NetworkErrorcom.android.volley.VolleyError: Network ...
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54 views

How to mount mmbclk0 for data recovery using testdisk and the like?

No standard Linux tool seems to be able to mount mmcblk0.img The partition table isn't something regular tools know of. Testdisk knows nothing of it either. For background, I formatted the device by ...
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Safe to delete files in /storage/emulated/media/logs?

My phone is running out of free space. When Settings > Storage displayedmore than 30GB used by "System", I looked into it further using the DiskUsage Android app. It told me that /...
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35 views

Where can an app store a drone video?

I have a Tomzon D65 drone, and the accompanying Tomzon-G app (Ver:1.1.2). The drone captured some awesome footage! It plays in the app fine. However, the app won't let me download the file. I suspect ...
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How can I find out where all my storage space is gone?

I've seen lots of posts here and elsewhere, including YouTube videos, about how to free up space on your android device or find out where it's all gone, including multiple redmi-specific ones, but ...
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Approaches to support exFat on AOSP Android 10+ where it isnt native

Just found out that my AOSP Android does not support exFat. Any thoughts about getting exFat support added. I read about this plugin that will work only for USB-OTG not for memory card - lest I ...
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1answer
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How can I copy my MIUI settings-based backup to my PC?

I'm using a Mi 9 SE with MIUI Global 12.5.1. I've just performed a backup using MIUI's Settings backup mechanism (accessible via Settings > Additional Settings > Backup & Restore); and I see ...
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How to extract data from app?

So I want to switch pedometer apps but move over my data. I thought I could just get the database, extract the relevant entries and inject them into the other app's database. But no. First off adb ...
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What is the location of recorded call files from Call Recorder?

I have Call Recorder installed and it is recording phone calls, which I can see in the application. I would like to see these files in filesystem too. Where are they? I see location Internal storage/...
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Does the Android SDK Emulator mount the filesystems on the host or emulate the mounting?

Does the Android Studio Emulator mount filesystems (like system.img and userdata-qemu.img) or emulate the mounting by making an illusion because I can't find them (the mounted filesystems) on the host ...
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1answer
158 views

Modifications of vendor image on Android 10 - alternative idea

Further to my earlier question here and according to the "Mounting Partitions Early" article, I'm looking the correct way to implement my new idea: Skipping the mounting in the startup of ...
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How can one list all large files?

One can list all directories on /mnt using: adb shell ls /mnt How can one list all files which are larger than 100M in the directory /mnt? adb shell find -size +10M ; sudo adb shell find -size +10M ...
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Which format the system images for avd are in

After downloading an image for android virtual device via avdmanager there are system.img userdata.img ramdisk.img and kernel_ranchu in system images folder. Which format are they in and how to read/...
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Android reports file sizes different than windows

Android and windows report different file sizes for the same files. why is that? Looking at two video files, on device both the Gallery and file manager report a certain size, but browsing to those ...
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How to expose a folder to a PC using mount command

I've been messing with termux on a rooted tablet (mediatek), and I'm trying to expose a folder using mount that will be accessible to my PC via a USB connection over mtp (with read/write permission). ...
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156 views

How to show configure mount ext2 ext4 formatted SD card partitions in android file manager?

How to show configure mount ext2 ext4 formatted SD card partitions in android file manager? As fat32 fiile system don't support files more than 4 gb I have to take backup before after rooting for ...
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48 views

How to mount image file without root?

In rooted android phone, ext4 image file is mounted using these commands in android terminal : # mknod /dev/block/loop52 b 7 0 # losetup /dev/block/loop52 /sdcard/ext1.img # mkdir /mnt/...
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267 views

Data Recovery on Android 11 with broken screen

I have a pixel 4a running android 11 with a broken screen. The full screen is black; the lower part of the touch screen seems to be responsive but I can't really tell what's going on so I don't know ...
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How to add strong encryption to an SD card so that I can access it both on my desktop and phone using open source non tracking offline tools?

The question says it all. So far I was able to find out Default android encrypted SD card can only be read by the phone or by a skilled hacker or their non open source tools There are tools that are ...
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147 views

change file system F2FS back to EXT4

Xiaomi Poco M3 (citrus) A-only (SAR) system-as-root device shipped with MIUI 12 Android 10 and F2FS (FBE encryption). I don't trust F2FS and want to run it plain EXT4 unencrypted. I formatted EXT4 and ...
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.nomedia + SD Card - just can't create the file, no matter what

I have an ASUS Zenfone 7 Pro phone running Android 11. This phone comes with an SD card slot and so I wanted to make use of it. It stored the files great, I can read the files all good. But I cannot ...
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79 views

Is there a way to remount external sdcard to allow execution from it to all users?

I want to remove noexec flag from /storage/extsd for all users. My system is a rooted original Android 5.1.1 with Termux installed, mount namespace separation is disabled in SuperSU app. Recently I ...
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Resuming multiple downloads in Chrome

Many sites give all their files the same name. When downloading multiple files like this, Chrome helpfully adds a (1), (2), etc. to the filename. However, if something interrupts the download, such as ...
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39 views

What does it mean when a file is owned by the user “system” and the group “system”? in android file system

I just trying to understand What does it mean when a file is owned by the user “system” and the group “system”? in the android file system. In the android device file system root@xyz:/ # ls -l cache/ ...
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646 views

How to get Android Phone storage as a drive path in Windows PC

I am using MI Note 5 Pro android version 9.0 and Windows 10 Basic. On USB plugging('File Transfer' selected), I can only access files from Phone by normal copy paste(ctrl-c/v) but cannot access full ...
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63 views

Adoptable storage filesystem?

I have a sdcard split into two partition: portable and adoptable. Not long time ago my /data is formatted as F2FS, really unstable on my device. So I recently format it again to EXT4. I'm noticing ...
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Name and type of virus on Android which is attacking file system and storage drives

There's a virus on my Android phone which is attacking the file systems and storage drives attached to my device. I need help identifying the virus, so that I may further my research and come up with ...
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Youtube Music Application Local History File Location [duplicate]

Yesterday I was listening to some music, but it didn't get saved to my account's history since it was blocked by an ad blocker. I was wondering if anyone knew if it was possible to access my recent ...
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The normal directories of storage of this app is empty. Does it got anything to do with my phone being unrooted? [duplicate]

There is an educational app in my android phone that allows me to download videos for studying them offline. I have downloaded a lot of videos and have my storage filling up to the brink because of it....
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144 views

keepass2android file locations

I've been using keepass2android for a while. I try to store my files in dropbox so I can access across multiple devices. I have noticed that somehow I have some copies of my mypasswords.kdbx file ...
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1answer
67 views

How can we avoid folders auto-creation?

There's a way to manage these system folders? I am struggling with some folders that are automatically created at boot, by system on the SD card, but I don't want them! The folders are especially the ...
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65 views

Android 11 "raw/:storage/..." file paths

Hello Android community! I am trying to recreate a way of putting a file on my emulator in a location, so that when picked it produces the following uri: "raw/:storage/..." My challenge ...
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3k views

Can I access "/data/user/0/" folder in Android emulator from Ubuntu PC?

I am using Ubuntu 18.04. From Android Studio with the following code I am getting file directory Context ctx = getApplicationContext(); final File filesDir = ctx.getFilesDir(); which is /data/user/0/...
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How can I dump the fscrypt per-file nonce by getfattr command?

According to document of kernel about fscrypt: Filesystem-level encryption (fscrypt): Per-file encryption keys Since each master key can protect many files, it is necessary to “tweak” the encryption ...
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134 views

How to mount sdcard as "internal" using custom filesystem on Android 10 (root access only via adb)

How can I properly mount my SD card as "internal" (i.e. so that all apps are on it) using a custom filesystem (in my case Ext4, but I'd like to use full-disk encryption using a key that I ...
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77 views

When performing an adb pull of an entire device, why do I see /proc/self/root in pathnames repetitively?

When performing adb pull / on a non-rooted device, I see hundreds of items with pathnames that begin with /proc/self/root/proc/self/root/proc/self/root/proc/self/root/proc/self/root/proc/self/root/...
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285 views

On a non-rooted device, can adb access any files that an Android file manager cannot?

An Android app I was relying on did not save its data. I'm hoping that perhaps the data is located in a cache or temporary file. The device is not rooted (and is running Android 7.0), and I've ...
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1answer
61 views

What are the files in the phoneypot directory?

I am running LineageOS 17.1 Lavender. Can anyone tell me the purpose of the files located in the /phoneypot directory in my Android device?
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Deleting Hardware files leads sometimes to brick the phone

I started recently to look up for a way to permanently disable my wifi, bluetooth, NFS, Network and GPS. Unfortunately I didnt find a proper method to do that. There was the option to physically break ...
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242 views

Android du and df very different: File System Corrupted?

On an Android Nougat (7.1.1) set top box, du and df of my /data partition are very different: $ adb shell du -sh /data 1.0G /data $ adb shell df -H /data Filesystem Size Used Avail Use% ...
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67 views

my device got a ROM flash by the seller prior to my purchase?

I bought a Galaxy Tab S6 a few days ago and I am going to verify if it is really brand-new. Some facts: The production date of this device is in July 2020 and my purchase date is in February 2021. ...
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160 views

How may I modify my root filesystem, which is mounted from /dev/block/dm-0, in order to create a mount point or symlink at /usr, on Android 11?

I need a writable /usr directory to run Gentoo Prefix. I suppose that it can be either a symlink to somewhere else or a mount point for further mounting. Information collected so far: Since Android ...
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3answers
759 views

How to solve problem in APK Tools

I'm trying to decompile an apk with the apk tools and I'm not getting it. When I run apktool -d myapp.apk it displays this error to me: Exception in thread "main" brut.androlib....
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How to handle hidden files and folders (which begin with a period/dot) when backing up Android to a Windows NTFS volume?

Over on Superuser, I asked about whether or not it's okay to have filenames and/or folder names that begin with a period (dot) on a Windows NTFS volume. The immediate response I received was to avoid ...

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