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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145 views

Retrieve Stock Browser History?

I have a Galaxy S4 and today 45 browser tabs I've been using for about six months just disappeared (should have been bookmarking things, yes). Is there a way I can retrieve my browser history via my ...
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370 views

Is there any working method to mount Ext4 partitions on 64 bit Android 5?

Is seems that, as for today, there are no working methods (apps or hacks) to make Ext4 partitions work (read/write) on my Android v5.1 64 bits. My device is a Jiayu S3 with a Xtreme ROM (not stock, ...
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0answers
1k views

File copied to /system/bin keeps disappearing

After copying Sqlite3 to by /system/bin folder, the file disappears. I can successfully change the folder to rw and modify the file properties on sqlite3. However, as soon as I remount my /system as ...
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1answer
1k views

Is it possible to restrict an app's permissions to a specific folder(s) (and subfolders)?

When installing an app, depending on the app, access to the filesystem is required and requested at the time of install. Is it possible to restrict this to specific folders(s) and their subfolders? ...
2
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0answers
202 views

What are these small 8-4-4-4-12 hexdigits-named files in root dir?

(Post edited to add more info.) My Android phone contains, in the lowest user-accessible directories of both phone storage and SD card, several small files named xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx ...
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0answers
660 views

Select file from Downloads to upload via web form

I'm on a Samsung Galaxy S3 and want to upload a file from my Downloads folder to a website using a form on that web page. But when I click the button to browse for a file to upload, I can only select ...
2
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0answers
1k views

Should I switch to F2FS?

I've heard a lot of hype about Samsung's filesystem named Flash-Friendly File System (or F2FS for short). I've heard about cases where the device apparently worked faster after switching to this ...
2
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1answer
591 views

Recover files of an App

My phone is a Motorola MOTO G (first generation). Due to some troubles, I had recovered the factory settings of my phone. But I forget to backup some data of an app (Tricount). A this point my phone ...
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1answer
2k views

Self replicating worm in sd card

I have a Samsung Galaxy Grand with a 16gb micro-sd card. For some inexplicable reason, I am losing data on the sd card. Folder names are being changed to start with the character "μ." For example, ...
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0answers
238 views

File transfer with multiple users

On a rooted Nexus 7 (2013), I have set up a second user. When I plug the usb cable to my mac, I can see all the files for the main user (using the Android File Transfer app from Google). However, ...
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0answers
457 views

“Low on space” message, but nothing appears full

GalaxyS (SGH-I897), running Android 4.0.4 Short problem description I keep getting "Low on Space: Phone storage space is getting low" error in my notifications bar, but neither the SD card nor the ...
2
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1answer
826 views

Samsung Galaxy S4 play edition and exFat

Does the Play version of the Galaxy s4 include support for exFat in the sdcard reader? Or is exFat support one of the extras that Samsung adds to the device (presumably since they made the licencing ...
2
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1answer
2k views

Corrupt Internal Storage File System

I am using an original RAZR that is partitioned using Safestrap running stock 4.1 on one partition and CM10.1 on the other. My problem is the internal storage (internal SD card I believe) partition ...
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0answers
363 views

Would any of the advanced Linux/UNIX filesystems be viable on Android?

I know ext4 is already used as an internal filesystem but I wondered if there would be anything gained by using something like btrfs or ZFS? I know they are meant for more server-oriented situations ...
2
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1answer
3k views

Can I delete a file called 'UPDATE' in the dload folder, or will this delete the operating system?

I recently received low space warnings on my Huawei Honor so I connected my phone to the Mac and observed the files: As you can see, perhaps 75% is taken up by a file called 'UPDATE' in the dload ...
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0answers
121 views

How can I “Share To” a network folder from my photo gallery?

I have an HTC Thunderbolt running Ice Cream Sandwich If I open up my photo gallery and tap on a picture, the "Share" option appears. Clicking on this gives me some options, such as Facebook, ...
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0answers
5k views

USB file transfer only works when HTC One X is connected in internet pass-through mode

When I connect my HTC One X via USB to my PC, I can see my Android storage only when my phone is connected in internet pass-through mode. I set the mode by Settings > More > Mobile network ...
2
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0answers
442 views

Persisting permissions on /mnt/shell after reboot

CWM Nandroid backups are being stored in /mnt/shell/emulated/clockworkmod I want to use DropSync (or something similar) to automatically upload the contents of this folder to Dropbox as a backup ...
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0answers
1k views

Any way to use another name for the external_sdcard folder?

On my Android tablet, the SD Card is shown as an external_sdcard folder, no matter how I rename the card. Personally I don't like the auto-assigned folder name. Is there a way to use a different ...
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2answers
3k views

Is there an Android web browser which can upload files from a local file system?

I am considering buying and Android tablet and want to know if this function is possible.
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2answers
7k views

Viewing File System through a Windows Laptop

I have a HTC Desire X running Android 4.0.4 (not rooted). When I connect my phone to my Win7 Laptop, from my laptop, this is the filesystem I see LOST.DIR (Empty) Android\data\com.htc.album....
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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 ...
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1answer
15k views

How do I get the real file path of an image?

When I look at an image on my phone in the gallery app, it tells me (under details) the path is /phone/Pictures/Messages/imagename.jpg. My native file browser can find this image in that path. A third ...
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1answer
437 views

Difference between /mnt/sdcard and /sdcard

I'm in the beginning of Android kernel study and I'm looking at every directory in rooted Android. I realized that the same directories were in those two: /mnt/sdcard and /sdcard. What's the ...
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1answer
690 views

Where I can find factory home screen layout file?

Where I can find factory home screen layout file? I would like modify default layout which will persist after I will make a hard reset. Best Edit device: Lenovo A6000, kitkat 4.4.4 rom: orignal ...
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2answers
261 views

How to find files related to a process

I was using adb shell to have a peek at what's going on a Sony Xperia Z phone. I've noticed a few services (e.g. com.sonymobile.socialengine.plugins, com.google.android.youtube, etc.). I'd like to ...
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2answers
6k views

Is there any userspace NFS client for stock android kernel(Galaxy Tab)?

I have tried kernel-mode things but it is not going to work. Actually i've reached my limit for seeing errors in one day: mount: unknown filesystem type 'nfs' mount.nfs: No such device and many ...
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3answers
435 views

This app promises to run “fstrim” without root but I am not sure if it works

I am not sure if this app works. Can someone please help me? My phone is new and in its warranty period so I can't root it yet. I tried this app but I am not sure if it actually did something. Unlike ...
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1answer
590 views

What is the “u#_everybody” UID?

In (multi-user) Android there are UIDs like these: u0_everybody u10_everybody u11_everybody Those seem different to the usual uXX_aYY UIDs used for the applications. What is their purpose? Is this a ...
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1answer
507 views

Delete file with special characters from un-rooted device

How can I delete a file with special characters from an un-rooted Android device? I used a web site to download a YouTube video to my mobile phone. The video name contained special characters (...
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1answer
211 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
19k views

Error “Function not implemented” when creating symbolic link

I'm trying to execute this command busybox ln -s "mydir/" "$PWD"/mylink in order to create a symbolic link from mydir; that, I am receiving the following error ln: /mnt/shell/emulated/0/mylink: ...
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1answer
864 views

remount /mnt as read-write

I am getting error "Read-only filesystem" when trying to add a new directory in /mnt via Terminal Emulator. So, I tried : su busybox mount -o remount,rw /mnt in order to remount filesystem for /mnt ...
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1answer
5k views

Access Android System Partition from Linux

What is the best way to access the Android system partition via USB of any device with Linux (not rooted device) Need to change some files in the system folders...
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1answer
1k views

Is it safe to rename, delete or disable system/bin/mediaserver?

mediaserver is constantly running in the background eating up CPU. I don't care at this point if I don't get to use the gallery app and I'm fed up with having to reboot every time I hop out of my car....
1
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1answer
471 views

Where should I save images to have them appear in the Gallery app?

Running KitKat, I want to extract a zip file with photos and place them in a folder where the Gallery app will find them. I'm using Android File Manager and Easy Unrar Lite to move files around and ...
1
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1answer
613 views

What might cause my phone to spontaneously stop booting into its custom ROM and only reboot into recovery mode?

My phone is a Samsung Vibrant running CyanogenMod 10.0 (Android 4.1.2). I rebooted my phone, as I do every few days, and instead of starting up CyanogenMod as usual, it dumped me into the ...
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2answers
1k views

How do I grant su rights to the File Manager app?

I'm digging around trying to find a Angry Birds save files but File Manager is lying about what's in each folder. How can I give that app su rights? Can I launch it from the command line after typing ...
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1answer
39 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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1answer
211 views

Why do Android create “Shell Folders” automatically? Can I change the shell folders?

Android automatically creates these folders in primary storage: Alarms DCIM Documents Download Movie Music Notifications Pictures Podcasts Ringtones They are the default "User Shell Folders" of ...
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2answers
1k views

How to save files to external SD card on a non-rooted Android?

I'm using the Terminal Emulator app on a non-rooted Android 5.0.2 phone. When moving files from a folder of the external SD card to another with: mv /storage/extSdCard/DCIM/Camera/* /storage/...
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1answer
913 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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1answer
271 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 ...
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1answer
172 views

File size in different devices [closed]

I'm working on an Android app which downloads new-updated resources from a remote server whose platform isn't specified yet. The app compares the size of the pre-downloaded local file and the remote ...
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2answers
269 views

Where do I store my files such that they can be found?

I'm trying to install an app from an apk file, and I've moved it to my phone via USB; however, I cannot locate it. What would be an easy location to which I could move the apk file such that it would ...
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1answer
382 views

Is Android FAT / FAT32 implementation power failure resilient?

Does the android FAT/32 implementation handle sudden battery removal? I know that Symbian's 'Rugged FAT' (efat32.fsy) and Microsoft's T-Fat implement this, but I've not been able to find any ...
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1answer
141 views

How can I place a text file on my homescreen for editing?

I would like to place a textfile from my SD-card todo.txt on my home screen so I can click on it to edit the content and when I close it only that file would be saved. Ideally there would be a git ...
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1answer
91 views

What does deleting a file really do? [closed]

When I run an app, select a file, and choose "delete" what happens then: the file is moved to trash (and later is removed by OS when some conditions are met) the file is removed from the filesystem ...
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1answer
1k views

Can I delete Zinio pdf files?

There are password protected page1.pdf, page2.pdf, etc... under mnt/sdcard/com.zinio.mobile.android.reader/9380198313/123123231/32123213 etc... Can I delete them?
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1answer
81 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 ...