Questions tagged [file-system]
A file system is the logical structure to organize (store, retrieve and update) data on a storage device.
626
questions
1
vote
0
answers
27
views
How to mount full image backup properly?
Did a full backup mmcblk0.img of a Redmi Note 7 (codename lavender) running Android 10.
However, I'm not sure how exactly to mount it or view files. Worth noting that I was suffering from an ...
- 11
1
vote
0
answers
19
views
How to dig deep into mmcblk0? [duplicate]
I've got an old backup file: mmcblk0.img
I'm wondering if there is any specific tool that can work with this file, as no standard partition tool has been able to view it. I think there's a chance it ...
- 11
2
votes
0
answers
27
views
How to create filesystem in TWRP? Getting error: Unable to recreate /data/media folder. E: Cannot decrypt adopted storage because /data will not mount
I tried to flash custom ROM on my Xiaomi Poco M2 Pro (gram) without putting too much thought and then something happened and now it's saying these on every recovery.
Failed to mount '/data' (Invalid ...
- 21
0
votes
1
answer
23
views
How to find exact file path to an external microSD card?
Is there a way to find out the path of files from a microSD card that is inserted into any Android phone?
Related investigation:
From here, How to specify the directory path on external memory card? ,...
- 101
0
votes
0
answers
24
views
My pc cant read my phone
When I plugged in the first time from my mobile phone to my pc it asked how I would like to read the mobile phone I chose the charging only option, now my mobile phone has a broken screen and I wanted ...
1
vote
1
answer
64
views
Back up/restore /data on a device with forced encryption and no TWRP support
Back in the days before forced encryption, I was able to back up my entire filesystem (or rather, the /data partition, including all non-system apps and app-private storage) using TWRP and restore it. ...
- 417
1
vote
0
answers
37
views
Please explain this file in /sys class thermal
In /sys/class/thermal/thermal_zone0/type, it reads "pa".
There are also other ones in other folders, like "ddr", "cpu-1-0" and "gpuss-0".
What do they mean? Any ...
- 79
0
votes
0
answers
56
views
Location of wallpaper and lock screen images on Android 13
I have two different images that I use for my wallpaper and my lock screen. These images are of my two oldest sons and have been used for wallpaper and lock screen for a long time. I just had another ...
- 1
0
votes
0
answers
64
views
Oneplus Nord file manager not able to open intent
On my Oneplus Nord I have multiple apps that aren't able to open a file manager to let me select files. There would be the Cryptomator app giving me the following error in their debug logs:
android....
0
votes
0
answers
48
views
Is FBE + Metadata Encryption secure if pin/password not set
My device is based on Android 11 and does not have a security lock screen. By default it has FBE and Metadata encryption enabled. How secure this encryption is without setting the Pin/password.
How is ...
- 69
3
votes
0
answers
88
views
How find large files with QDirStat on Android 11 with root?
I want to list all files in my phones /data volume using QDirStat, or something simular.
On my phone, I've used DiskUsage (com.google.android.diskusage) before, but I find the visualization lacking.
I ...
- 31
1
vote
0
answers
48
views
Accessing Bug Reports and Termux storage in file explorer?
A lot of apps call Android's "Open file" dialog when they want the user to select any file on their phone - for example when attaching a file to an email, or when opening a file with an ...
- 141
1
vote
1
answer
229
views
Having confusion building erofs format system.img for Android
I try to edit an Android 11 system.img file that was extracted from super.img. Now I have an issue that is very confusing to me. First, I extracted system.img by this command (The file system is erofs,...
- 21
1
vote
0
answers
42
views
How to secure files in SD card by using adoptable storage?
I asked this question before, and this is a follow-up.
I am trying to encrypt my SD card for data security (I don't want some random guy to be able to access my photos/documents/downloads by just ...
- 121
0
votes
1
answer
166
views
What type of data is excluded from the "media only" file permission in Android 12?
Starting from Android 11, there are 2 levels of file access permission, i.e., "files, media, and everything" permission and "media only" permission.
What is the difference between ...
- 151
0
votes
0
answers
111
views
Is it possible to proot into an Android rootfs?
Where can i download an android rootfs? I was wondering will it be possible to use Android on Linux using (proot)
- 79
0
votes
0
answers
97
views
How to use file picker from command line
I would like to launch a file picker from a script to graphically select file. While I am able to launch a file picker by sending intent
am start -a android.intent.action.OPEN_DOCUMENT -d /storage/...
0
votes
1
answer
67
views
Get file from our app on a customer's device
I work for a company that developed an Android app, but since then the guys that wrote it have left. I am a beginner when it comes to Android development.
We have a situation where our customer has ...
- 101
1
vote
0
answers
126
views
Local HTML file links cannot be followed
Background:
I use my tablet for Geocaching, specifically to have cache listings available in the field. For this purpose, I have a program called Geocaching Swiss Army Knife (also known as GSAK) ...
- 111
1
vote
0
answers
2k
views
How to mount network drive so it's accessible by other apps file picker?
I have a handful of apps that have file pickers, but they only show me what is in /storage/emulated/0 (also shown on my phone as "Internal Storage") and below. I want to mount a NAS so that ...
- 111
1
vote
1
answer
44
views
Micro SD cards work on phone with Android 8 but corrupted in phone with Android 11?
I have two SanDisk micro SD cards, a 8GB one for storing my photos and files in a Sony Xperia XA1, which runs Android 8.0 as the OS, the other one is a 128GB used in a Sony Xperia L3 phone, running ...
- 11
1
vote
1
answer
159
views
Avoid re-downloading files with Termux in its own downloads folder
I have some files for which I don't have any app to open them with, but whenever I try to open them, instead of the "try looking in the Play Store for an app to open your file" dialog, I get ...
- 113
0
votes
0
answers
294
views
Cannot Mount userdata partition on Android 11
I have pulled a block of encrypted userdata partition ".img" and trying to mount it on unecnrypted device (same device with encryption set to off). My device is rooted.
My userdata is ...
- 69
2
votes
1
answer
222
views
Exploring options for customizing SeLinux policy ( SePolicy to enable bind-mounting ) , including kernel recompilation
As I realized selinux for Android is more than tad bit different creature than what I can get done on Linux . I need SeLinux policy to be modified so I can bind mount my folders. Unless that happens ...
- 61
1
vote
0
answers
247
views
WhatsApp backup shrinks in size for no apparent reason
AFAIK there were never msgstore.db.crypt14 incremental backups in WhatsApp message file backup design strategy - aka everyday WhatsApp leaves a 1.1gb file in /sdcard/WhatsApp/databases . Now I know ...
- 61
1
vote
1
answer
50
views
MicroSD card works fine on Mac and digital camera but Android phone wants to format it
I have two identical 64 gig microSD cards I bought three weeks ago. They both work fine in my Canon IXUS camera and they both work fine in my year-old M1 MacBook Air.
But only one works in my new ...
- 305
1
vote
0
answers
15
views
Some music metadata/tags dissapeared after copying to micro sd
I tried copying my large music library from my internal storage to my external micro sd card, only to find 50% of my album art went missing, some artist and album info is gone, while the songs ...
- 11
0
votes
0
answers
41
views
Why can't I access data folder from file manager anymore? [duplicate]
Just as stated in the title, and just a few days ago or so I got my phone updated. Mine is android 11. Previously, I still can access data folder on sdcard i.e. where the data files of apps are stored....
- 187
1
vote
1
answer
278
views
Can I rename the external storage mount point on Android10 with root access
System: rooted Samsung Galaxy S10 with Android10
I have replaced my old external sdcard (128GB) with a new and bigger one (512GB). The old card was automaticly mounted to /storage/6639-3031. The new ...
- 243
0
votes
2
answers
133
views
How can I write in a HDD on windows that I can read later on a Nokia Streaming Box 8000 (android TV)
I just bought a Nokia Android TV with a super nice USB A 3.0 port (that was the main reason to choose it) where I want to plug my external 2.5' 2TB hdd with all my movies and music and such.
BUT, when ...
- 101
0
votes
0
answers
70
views
Can installed apps access data on android storage in background
Will it be possible for an app to read data in the background if it has media access permissions or even full storage access permission?
Assumptions:
Android 11 and above
Media and file storage ...
- 151
0
votes
0
answers
39
views
Configure Chrome Shortcuts using the file system
The usual way of adding a Chrome Shortcut to the Homescreen would be to open Chrome, navigate to the Homepage and tip "add to Homescreen".
Since I have a lot (and I mean a lot) of devices, i ...
- 1
0
votes
0
answers
198
views
Is there a folder for local unix sockets under Android?
On a normal linux installation the right path for local sockets is /run as described in the FSH.
But this folder does not exist under Android. I have checked both an old and a new device.
There is the ...
- 61
1
vote
1
answer
194
views
File attributes on Android (Linux): Any way to make a file fully writable but not deleteable?
I tried chattr with the +a (+i is even more restrictive), but it immediately caused app panic aka "app has stopped". What I want to do is make a file & folder undeletable.
You can ...
- 417
1
vote
1
answer
55
views
Why does the use of symlinks in /system gradually erode available space?
I am working on a routine for swapping dictionaries on an e-reader (Nook Simple Touch--Android 2.1). I've got the shell commands nailed down and have constructed an app using Tasker. It all works ...
- 41
1
vote
1
answer
199
views
Access my application files of an old App
I have this old-ish Android app running on my Pixel4 w/Android12 phone, the app was last updated on 2018 and it clearly uses old API or whatever and the built-in backup functions are obsolete. It ...
- 13
0
votes
0
answers
266
views
"The Magic", that Magisk isn't supposed to do
I have magisk 24 which I futilely tried to downgrade using XDA's guide but did not succeed, which is the 2nd part of my Question . There is something v interesting I note ( not sure how long its ...
- 417
0
votes
0
answers
101
views
Are the Android app switcher/multitasking snapshots created when an app is sent to the background, encrypted?
This post here: https://android.stackexchange.com/a/218963/364009
outlines the snapshots location for the app switcher when an app is sent to the background, /data/system_ce/userid/snapshots, or at ...
0
votes
0
answers
32
views
Access Android/data on parental-restricted phone
I'm looking for a way to backup a Minecraft PE worlds on a phone that has parental-control enabled (best in an automated way).
The Minecraft on Android has the ability to save the worlds in the "...
- 101
1
vote
0
answers
234
views
Is it safe to delete a .bin file on an Android 11 phone?
I keep getting .bin files that show zero data in them and others that pop up regularly. Is it safe to delete them? Do they contain any vital information. Are they remnants of sites I've visited using ...
user367043
1
vote
1
answer
200
views
Where is hidden additional data of an app stored?
This question came to my mind when I installed Oxford Dictionary. It's strange that I couldn't see the additional files (audio, dictionary, and pictures) in an unrooted device. This app has a base app ...
- 187
1
vote
0
answers
860
views
What is the /data/misc folder?
I recently ditched my phone's stock ROM for a lightweight custom one. After transferring my files over, reinstalling apps and reconfiguring settings, I wanted to perform a full backup of the phone's &...
- 141
1
vote
0
answers
159
views
contents of data partition in android
does anyone know what all content is stored in /data or userdata partition in android-10.
I see a lot of directories in /data like app-staging, misc, system, vendor.
what information is stored in ...
- 69
2
votes
1
answer
239
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 ...
0
votes
0
answers
35
views
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 ...
- 211
1
vote
1
answer
1k
views
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 ...
- 227
1
vote
0
answers
37
views
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 ...
0
votes
0
answers
3k
views
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 ...
- 1,329
0
votes
0
answers
792
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 ...
0
votes
0
answers
390
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 ...
- 1