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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10 views
Is it possible to access an android resource file from Python? [closed]
I'm trying to build an app that uses a deep learning backend. I have a trained model (in h5py format) stored in the app's resources under the raw category. I want to access this file from the python ...
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0answers
16 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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0answers
18 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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0answers
16 views
Where does The Economist store its data? [duplicate]
I have installed the app of The Economist.
It is configured to automatically download new issues.
I mean to clean some of the files, since it is taking a lot of space.
How can I determine the ...
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1answer
27 views
What is default fstab file in android?
As I known, in android 9, system and vendor are mounted in the first stage of init by parsing fstab from device tree. But, there is another fstab parsed in init process, it is device default fstab, ...
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22 views
Explore files using Android Studio
Is it possible browsing the device filesystem with the current version of AS? I've read that in the menu View > Tool Windows > Device File Explorer there should be the suitable tool, but I cannot see ...
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1answer
20 views
How does Windows interact with Android Internal Storage?
I have a simple question which I can't find the answer for
We all know that Microsoft Windows doesn't support partition formats such as ext4 or f2fs, however even this being the case, how can it ...
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0answers
21 views
In which Android system file can I remove Wi-Fi password field?
If I would root my device based on Android (v4.0.4), which system file and how can I change to remove from the graphic interface the field where we manually type a password when connecting to new Wi-...
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1answer
325 views
How to unpack/repack system.img of android ROM?
I have OnePlus 6T device which has A/B partition system and has a ROM of user type i.e [ro.build.type]: [user]. This device is rooted with Magisk. I have a requirement(Want to place customized ...
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1answer
712 views
How to disable dm-verity on Android with “user” build type ROM?
I have One Plus 6T Android device which has a ROM of build type user. This device is rooted with Magisk and I want to disable dm-verity on this device. I have tried to run adb disable-verity but I got ...
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23 views
Camera folder displayed as empty, but contains 20GB data
My Lenovo Moto G5 Plus' internal storage ran full, and now there appears to be a problem with the photos that are saved on its internal storage. The internal DCIM/Camera folder is displayed as empty ...
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17 views
In Android 8, during video recording, how the data is saved to disk?
In Android 8, during long video recording,
1) how often does the recorded video data is written to internal storage?
2) What is the size of each piece of data written?
3) Is the data stored ...
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1answer
54 views
Does Android 8 has journaling enabled in its ext4 files sytem?
Android 8 uses stackable file sytem called sdcardfs, which emulates FAT32 on ext4 on the data partition. Does sdcardfs recognize the ext4 file system and journaling?
In other words, files written ...
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0answers
30 views
2 folders of same name in internal storage of Oneplus3
Currently on my phone, i have 2 folders of the same name. The content of both folder shows 0 bytes. EDIT : They are exactly the same. And the subfolders and files are also same with 0 bytes content. ...
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1answer
1k views
TWRP unable to wipe or format `Failed to mount '/system' (Device or resource busy)`
I'm trying to install LineageOS and then GAPPS on my Pixel XL from TWRP recovery. I'll try to Advance Wipe the /systems directory and Format Data, but I continue to get multiple errors:
Failed to ...
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1answer
124 views
How to identify the app/process which re-mounts partitions R/W, creates files and changes file permissions?
I have a rooted device, with superuser rights granted to a few apps I trust. I have often found my /system or /vendor partition mounted read/write, and some files chmoded to 0777. Similarly ...
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1answer
185 views
How can I know if fstrim was run when I put my phone on charging over night?
Is there any logging where I can confirm this?
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1answer
108 views
Why deleting system files on a rooted Android says “device or resource is busy”?
I have FX Explorer, I was trying to delete some stuff in /system/app (the stuff are just empty folders) but it keep saying The operation isn't permitted on a mounted filesystem. What should I do to ...
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14 views
Save doc to same location it was opened
I am looking for an Android word processor that does one thing ( aside from the usual editing and formatting).
When I go to save a document, I want that document saved exactly in the same spot that I ...
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2answers
138 views
Getting signature error while installing a different version of the app
Recently I install a custom ROM named eelo https://e.foundation/. It comes with pre-installed Telegram app. After much research I was able to uninstall if from the system with the command adb shell pm ...
2
votes
1answer
127 views
If I reset my phone, will it also TRIM the fragmented eMMC?
I know that Android supports fstrim but it only works if the phone is idle for a long time while charging. I think my phone is too fragmented and is lacking performance so I want to reset it but I am ...
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0answers
50 views
An app on the play store promises to TRIM without root access but I highly doubt if it even works [duplicate]
My phone is new so I can't root it because I don't wanna void my warranty just yet and trimming my phone would also not make a significant difference. Since most other apps on the Play Store promise ...
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3answers
230 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
424 views
How can I enable last_kmsg?
I'm trying to diagnose a random reboot on LineageOS 14. last_kmsg is not in /proc, nor it is in /sys/fs/pstore/console-ramoops.
EDIT:
~# mount | grep PSTORE
~# mkdir /mnt/pstore && mount ...
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0answers
37 views
Can I get the account details or logged details of an application from the data / file system directory of phone?
Can i get the account details or logged details of an application from the data file of the application in the file system. My device is rooted.
For example I have two Instagram accounts saved in the ...
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0answers
31 views
How to delete app remnants without root privileges?
I installed Chrooma Keyboard on an Android Nougat device. It worked fine, including swiping to enter text.
After adjusting Chrooma's settings several times, it started to have a problem where ...
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0answers
27 views
Corrupt filesystem - only able to boot from external SD card
So I have a Samsung Galaxy J5 SM-J500F which suddenly refused to boot in any way (normal, recovery, download). I booted TWRP from external SD card but it shows Internal Storage (0 MB). Can't mount or ...
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0answers
17 views
How do I find and delete lost encrypted files?
I used the Asus File Manager app hidden cabinet feature to store files. Now the app crashes whenever I open it. The files being gone is a conclusion I've come to accept, but I would like to delete the ...
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0answers
37 views
Track files created/read by a certain app
I want to monitor a system app, say "S1." In particular, I want to know what files S1 is accessing/reading.
S1 can also download files over the Internet and save them in the root of the system.
I ...
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0answers
34 views
MicroSD card file system keeps getting corrupt for no obvious reason
Since when I got my current phone (May 2018) I had to reformat my MicroSD card about 3-4 times, probably because of file system corruption. (It's a SanDisk 8GB one, for those who are wondering. And ...
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0answers
13 views
Check internal/USB/OTG/Sdcard filesystem on Android [duplicate]
Is there any standard way or app to check which filesystem my device has, incl. external ones?
Non-standard apps are also appreciated.
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287 views
Is there a way to change the default file manager app?
I was wondering whether I could replace the file manager that comes with my phone with a 3rd-party app in a way that any app that needs file access, goes through the 3rd-party app to find the ...
0
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1answer
81 views
Change file (pictures, videos) timestamp from filename
When moving files around tru different dirs and across PC / smartphone, timestamp for last modified date usually get reset to the very datetime of move / copy operation. This lead to files being non-...
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1answer
65 views
How Can I Check the Location of a File (e.g. Cluster or Sector #) in the Internal Storage?
I would like to know If I certain file moves on the Flash memory (internal storage), between writes/updates to it.
Is there some way I can get the file's location on the Flash memory?
(Cluster Number,...
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0answers
37 views
datadata is full - and doesn't let me remove files
A really old Smartphone having Cyanogenmod on it provides only about 400 MB space for data/data.
Now this space is full. df shows 0.0K of free space. The homescreen doesn't even appear, only errors ...
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121 views
adb shell push image to recent or downloads folders not on sdcard
I want to push images to one of this folders:
with shell command. But file only appears on sdcard folder
My last tries was:
adb push C:\Users\User\Pictures\girl.jpg /data/media/0/Pictures/
adb push ...
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vote
1answer
349 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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0answers
53 views
Photos are grey/corrupted?
Whenever I take pictures with my phone, the picture turns grey, with only a strip of the picture on the side. I recently reset my phone to try to solve the problem, and it worked, but then it started ...
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0answers
161 views
Is it possible to open a locked android device or access it's files without knowing the password?
I have a Samsung phone which is password protected it also has fingerprint enabled.
I don't need to know how to open it I just want to know if it's possible to unlock it or access its files?
There ...
0
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0answers
52 views
Which apps can find Non-root apps's data? [duplicate]
Where Android apps store data?
I am trying to find all the app data of a game installed on my device(2.53GB) for move it to another device(first time) because I need to change my device soon... I don'...
0
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1answer
109 views
How to create a copy of a file immediately when it's created? [duplicate]
I have an Android app that will create a file in /data/ and immediately delete it. I want to know how can I catch this file or create a copy or even disable user permissions to delete a file? I have ...
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0answers
44 views
Phone stuck in bootloop after renaming system APK
I have an xiaomi redmi note 5 rooted:
to get rid of the notification system about new updates I've renamed the
" Updater.apk " file on root /system/data/Updater , but now the phone in in bootloop.
I'...
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vote
1answer
25 views
File recovery on bootloader unlocked Pixel without flashing
I have a first generation Google Pixel the bootloader of which is unlocked and is running stock Pie. I need to recover deleted files on it because a move operation got effed up by ES File Explorer ...
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0answers
24 views
Is it possible to create shortcut in Android file system without root?
Android system doesn't provide ways to create shortcut in file system.
I have tried using termux to create shortcut in my file system, but I don't have the authority.
Is there a way to create ...
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vote
1answer
751 views
Why is the '/storage/emulated/' directory inaccessible?
The /storage directory and the /storage/emulated/0 directory is accessible in a non-rooted Android OS.
So, why is the /storage/emulated directory not accessible in a non-rooted Android OS ?
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2answers
2k views
Is it possible to change file permissions on Android's internal storage?
How can I change file permission of a file on Android without rooting? I actually want to prevent some files from deletion.
Note: I am asking of changing the file permissions of user-created files in ...
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vote
1answer
215 views
Why files/directories under Android's root filesystem don't change across different version updates?
I compared 2 devices; one running Android v5.1.1 and other v9.0. So I noticed that files under /proc are same in both.
Can anyone explain why there is no difference even though OEM's are different and ...
0
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0answers
39 views
Audio files disappeared from S8!
Don't know how long ago the files disappeared or whether it has to do my the Oreo upgrade recently; or using the phone's "fix now" button to delete leftover files; but the audio files that were less ...
0
votes
1answer
557 views
How to change the modified date of a file without root?
How do I change the modified date of a file, specifically PNGs, on Android without root?
Total Commander failed to do it with a permission error Access Denied.
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0answers
21 views
Only few files are visible from 5TB exFat external hdd on Galaxy S8+
I have a 5TB external storage with many RAW photos and videos. They are sorted by dates in folders and the hdd itself is almost full.
When I connect it to my PC, it recognizes all files and ...
