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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Linux automount corrupts ext4 partitions of Android install?

I've been experimenting with dual-boot between Linux and Android on an x86 device which came with Android + Windows preinstalled (Chuwi Hi10 Pro). I soon found out that simply booting Ubuntu (either ...
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447 views

Filesystem for sdcard to store large file and apps access

I am running android oreo 8.1 (custom ROM) on Xiaomi Redmi Note 3 Pro. I have a 64GB memory card in which I want to store large files of size 15GB, 20GB etc. So I can't use FAT32 filesystem. I ...
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1answer
48 views

What Kind Programming Language Used in File on /system/xbin?

i was explore file in xbin folder, then i found that the file is have strange language like this : ELF( 4�Q4 (444 TTT�>�>�M�]�],�LNL^L^hhh88Q�tdpH1H11��R�td�M�]�],,/system/bin/linker ...
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Android doesn't delete folders completely

Redmi 3s, MIUI 9.2 MultiROM Stable. I had some music on SD card in Music folder, then I deleted it (using Poweramp or file explorer, same for both). Tried to send music from PC using Foobar2000 ...
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178 views

What is the reason why partial amounts of files show up while connected via MTP?

This question is in reference to an ongoing issues brought up in the past about being able to see all files on a device through an file manager app, but only a partial amount showing in Windows ...
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1answer
4k views

What is the Location of Saved Images from the Facebook App?

What is the location of saved images from the Facebook app? I found this Location of saved images from Facebook Messenger app but I'm interested in photos from the Facebook app itself
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180 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-...
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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
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449 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 /...
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1answer
441 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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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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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 ...
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111 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 ...
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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 (...
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79 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 ...
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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 ...
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1answer
3k 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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388 views

Can't remove remaining facebook files

so I have 2 remaining .cnt files in /data/data/com.facebook.katana/cache/image/v2.ols100.1/44 and /data/data/com.facebook.katana/cache/image/v2.ols100.1/45 The thing is that they can't be removed in ...
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827 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 ...
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1k 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 ...
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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?
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306 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 ...
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266 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 ...
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What is the real used space on data partition of my phone?

When selecting data partition on my phone (HTC One M8), TWRP says it's going to back up 5448 Mb. But 'df' command says there are 8319 Mb used from 10934 total. And ES Explorer displays the size of /...
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906 views

Where are the lollipop OTA system upgrade files stored?

Android devices automatically download OTA system update files and store them on your device until you install them. Then you get a notification that the file has been downloaded. I do not want to ...
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10k views

“.walkfree” folder automatically created in SD card, and APKs downloaded into it without any notification

In my SD card a folder is created on its own named .walkfree by an unknown source, and in that it automatically downloads .apk files showing no notification of being downloaded, and if deleted, a new ...
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1answer
1k views

/storage/emulated/legacy is read only

For some reason, no apps on my phone (including adb, after running su) can modify any files in any subdirectory of /storage. I also can't use my file manager on my computer to edit, create, or delete ...
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126 views

File system content different on device and on desktop

I've got a Nexus 9 which I'm using to read PDF graphic novels. My process for getting the files onto the device is to connect it to my PC via USB and drag the files into the Download folder on the ...
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336 views

Difference between /mnt/local and /mnt/internal?

I have a WonderMedia 8650 based tablet running Android 4.0.3. The File Manager app shows the internal flash file system as "/mnt/local", I can also see a "/mnt/internal" filesystem that's identical. ...
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148 views

Completely Full /system on CM11?

I installed CM11 from this thread on my old Nexus S 4g, thinking I could use it as a tiny server or something. However, it seems that the /system mountpoint, where things like /etc live, is ~100% full:...
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490 views

Accessing temp files created by an application

I have an application that I know writes temp files to the data/data/app-package directory. Using a file browsing app or windows explorer it seems these directories are sufficiently protected. Is ...
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1answer
866 views

Folder turned into file?

Normally "DCIM" is a folder in which all photos that were taken with camera are stored. When I tried to take a photo with Google Camera, the app instructed me to insert a sd card before taking photos (...
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1answer
1k views

cannot play or copy corrupted video

I have a Samsung galaxy S4. I have changed the settings so that the pictures and video taken from the phone camera are saved in a folder on the external memory card. Usually this works quite well. ...
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185 views

How applications read /data directory on not rooted devices

To access directories like /data in file managers the device should be rooted. My phone is not rooted but I see that anti virus applications can read and scan such directories. If reading these ...
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1k views

How do I change call recorder file destination?

By default my call recordings are saved on the internal phone memory, in the Sounds directory. How can I change this, e.g. to the external SD card? (Android 4.1.2, Omega ROM v49, inbuilt recording ...
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2k views

Creating a symlink (symbolic link) to files

I'm looking for a way to create a symlink with Android. I know I can write a script but I don't want to spend so much time when perhaps somebody has a better solution? I know app2sd and link2sd, but ...
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1answer
271 views

Android phone file structure seems corrupted when connected via USB

so I have a Sony Xperia Play, and it's worked for awhile, but now I'm finding that sometimes when I plug it into my MacBook through USB, and try to copy files from the EasyVoiceRecorder folder onto my ...
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5k views

Why can't I access the files on my SD card?

I have a Motorola Droid Bionic which I recently updated to Android 4.1.2. Since the update, I can no longer access any of the files on the 32GB micro SD card I installed in the phone. I can view all ...
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1answer
1k views

Unable to access the “mmcblk0p6” file, on Samsung S5300 Mini Pocket

I have rooted my Samsung S5300 Mini Pocket Galaxy, and I have entrie SDK installed on my Windows 7 laptop. Now via Command Prompt I am able to: adb shell $ su # <--- and get root access However,...
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242 views

How to hyperlink to file in KingsoftOffice?

I have an Excel spreadsheet created in Windows and open in Kingsoft Office. I would like to be able to create a hyperlink to specific files on the tablet itself. For example, I want to be able to ...
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722 views

Expand file sysem to entire sd card

I followed very simple instructions http://liliputing.com/2012/03/how-to-dual-boot-cyanogenmod-7-nook-tablet-os-with-a-microsd-card.html1 for extracting cyanogenmod to an sd card for dual booting ...
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2answers
2k views

Auto-delete certain file extensions on my phone?

How do I make my phone automatically delete certain file extensions? I'm on ICS, rooted. For example, after connecting my phone to my mac, it will leave a .trashes file and other "." folders on my SD ...
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1k views

Why would /mnt/sdcard/ not appear?

Using ADB shell to view my Samsung Galaxy Tab 7+, I see a /mnt but no /mnt/sdcard/ where according to fable the photos taken by the camera should reside. Why would the sdcard directory not be there? ...
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233 views

Where are the hidden videos and pictures from Camfiler's VS and/or PS apps?

In Camfiler's PS and VS programs where are my hidden videos and pictures on my SD card for when I back up my card to my computer?
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1answer
376 views

basic android file system

I have a samsung galaxy 8, new to android from iphone 7. Since this system is new to me I wanted to get a rundown on the internal/sd storage files, where system files are stored, how to find apps and ...
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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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38 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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How to move files from regular account to work account on android 10?

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