Questions tagged [file-permissions]
Use this tag if your issue is with permissions in the file system (files & directories). For app permissions, use the 'permissions' tag instead.
142
questions
1
vote
0answers
15 views
Android 11: change ownership of media_rw files [duplicate]
Could somebody please help with the following problem on ArrowOS, Android 11?
Background
I use TitaniumBackup to create regular app backups. The TiBu folder is on internal storage. Then, after that, I ...
1
vote
0answers
19 views
rooted lineageos: mount /sdcard as ext4 with support for ownership/permissions bits [duplicate]
It seems the partition corresponding to /sdcard is formatted as a FAT variant in android. As a result, it does not support ownership/permissions:
/sdcard/Signal $ ls -lrth
total 116M
-rw-rw---- 1 root ...
0
votes
0answers
327 views
How to edit build.prop file in Android 11
I have a TCL 20e (6125A) with Android 11. I want to increase the torch brightness. As I read in another post, this can be done by adding these two lines in the file:
ro.media.capture.flashintensity=50
...
0
votes
0answers
49 views
Create and edit a bash script in an USB connected smartphone
The question explains it all. I am using Ubuntu 20.04 LTS. I have connected an android smartphone to pc using USB. Changed directory to internal storage using:
cd /run/user/*/gvfs/*/'Internal Shared ...
0
votes
0answers
48 views
Why does encryption doesn't work/apply to access device storage or Google photos or drive when we upload a file from device/cloud to any webpage/apps
Example : YouTube, Facebook, Instagram, Chrome ( any app )
If I'm accessing YouTube or any other app where I can upload content from Android device with or without the app lock features, whenever I ...
0
votes
0answers
32 views
How to resolve the "Permission Denied" to access termux files - no root [duplicate]
I have a number of terminal applications, When I change the directory to:
cd /data/data/com.termux/files
I get permission denied.
How to make another terminal app to be able to access termux files?
(...
1
vote
0answers
30 views
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).
...
0
votes
1answer
31 views
How to delete a file registered in Word for Android recent files list?
The file in this picture within the recent list is an old competition fixtures file I want to delete.
I click on the three dots to the right of the file and select delete and it says I don't have ...
1
vote
0answers
188 views
How to write to an Android system file?
Why is writing to /sys/class/power_supply/battery/status having no effect?
Accessed manually via adb shell as root, eg echo "Discharging" > /sys/class/power_supply/battery/status does not ...
0
votes
0answers
154 views
Change file permissions on VMOS for zANTI's IP forwarding
I am using zANTI on VMOS (rooted, 32-bit). When I start MITM, it gives an error setting up IP forwarding
sh: <stdin>[2]: can't create /proc/sys/net/ipv4/ip_forward: Permission Denied
So, I ...
0
votes
0answers
109 views
Cxxdroid can execute c++ binary in any internal storage directory, but Termux cannot
I was testing some c++ executable in my old smartphone (Android 8, no root). Here's the description of the problem:
I have both Termux and Cxxdroid installed in that phone. And in termux, I have clang ...
0
votes
1answer
37 views
Why can't I select some image files on some apps, while the Gallery app can?
I have a Xiaomi device on Android 8.0 Oreo. I was editing some pictures in an application and sometimes the picture that I want to edit doesn't appear on the editing app, but there's in the gallery.
...
1
vote
0answers
870 views
How can I access files downloaded from Chrome on Android 11?
With Android 11 adding scoped storage, I'm noticing I'm not able to access some key folders in my file manager app of choice (Solid Explorer). In this case, files downloaded via Chrome and it's ...
1
vote
0answers
19 views
Termux (specifically npm) can't install in internal storage [duplicate]
Everytime I try to use NPM to install something into /storage/emulated/0/dir it would always do this:
npm WARN tar EPERM: operation not permitted, futime
npm WARN tar EPERM: operation not permitted, ...
0
votes
0answers
358 views
Can't write to internal storage on a rooted phone
I have a Samsung Galaxy A5 (2016) which I rooted with Magisk.
Now in the process of installing TWRP and customizing my phone, I might have run some shell commands, like mount or sudo in a place where ...
2
votes
1answer
147 views
Have root & external sdcard mounted rw, but mv produced "Permission Denied"
I have an old tablet running LNOS 14.1. It has an external SDCard with some Books, Videos etc. The card is configured as movable storage. .android_secure is an empty directory, and though I haven't ...
1
vote
0answers
35 views
Is this possible in Android that a file/folder can have multiple owners and group?
So in my scenario, I am trying to assign multiple groups, the user to a file in /dev/. So I have created a custom AID in config.fs and the corresponding [path], mode, caps parameter also configured. ...
1
vote
0answers
148 views
How to properly propagate unmounting of USB OTG storage to all mount namespaces (rooted device)
This is a (spiritual) follow-up to the previously answered question How to bind mount a folder inside /sdcard with correct permissions?.
Device: Samsung Galaxy Tab S2 8.0
ROM: LineageOS 16.0 (Android ...
4
votes
1answer
125 views
How much of the Android filesystem is visible over MTP?
When I plug in my Android device to my computer it gets connected as a media device under MTP mode. I can browse a bit of the folders on my device via my computer. I'm wondering how much of the device ...
0
votes
0answers
114 views
How to make a text file read-only in a non-rooted device? [duplicate]
I wanted to make a file read-only (440)in internal storage but it shows "failed",as it seemingly requires root permission but I can't unlock bootloader as of now so is there any means we can do the ...
1
vote
1answer
74 views
Why preinstalled apps have more privileges than third party apps?
This question is based on an observation of Android's powerful security features, In my old Android Lollipop third party apps had read access (but no write access) to external SD card, but my Android ...
1
vote
0answers
663 views
E: failed to format /cache: permission denied
I am using a Blackview A60 Pro and I am stuck inside of the turn on screen. A couple of days ago I dropped it in a bucket of water and I have had it in rice since. I turned it on and it won't boot, I ...
1
vote
0answers
57 views
Securely storing keyfiles with authentication and alike
I am using Keepass as my password manager. I am using a keyfile for securing access to my database. However when I want to do the same on my android phone I have to store the keyfile in my phone ...
2
votes
1answer
1k views
Why root cannot access ".android_secure" directory on external SD card?
I have an Android 9 tablet, rooted by way of Magisk. It has an external SD card mounted as sdfat on /mnt/media_rw/1234-5678 which is mounted on four other mount points, all as type sdcardfs, with some ...
6
votes
1answer
8k views
How to access /storage/emulated/10 (multi-users env) in adb shell on Android 9+ without root access?
I have two Android system users configured.
$ pm list users
Users:
UserInfo{0:Owner:13} running
UserInfo{10:security space:13} running
UserInfo{999:XSpace:800010} running
When the mobile ...
0
votes
0answers
383 views
Why `diag_mdlog` not able to write on `/sdcard` if it is fired from an Android App that has write permissions?
I am getting a weird behavior with diag_mdlog executable. I am executing it from my Android app as
su -c /vendor/bin/diag_mdlog -o /sdcard/abc -f /sdcard/Test.cfg
The issue is:
if the android ...
0
votes
1answer
236 views
Can a System-App read the data of other apps on Android 9?
I want to know if a system-app is able to read the data of other apps (the data stored in /data/data.) on Android 9.
Thanks!
1
vote
1answer
2k views
How to edit root files in /sys (Permission Denied)?
I have been trying to change root files in my phone through an app I am developing. The phone I have is a Moto G6, fully rooted. I'm using terminal emulators to run commands on my phone. I've tried "...
1
vote
1answer
1k views
Termux files permission
I have an issue with files permission in termux. For instance I installed c4droid and copied the termux include and lib folders content in the c4droid folder where the headers are being looked for at ...
0
votes
1answer
1k views
Can android user become a super user in android?
Is it possible to change the rights of normal user in android to super user?
My requirement is to run the super user code(I want to read a file data from system directory) in a device that has ...
0
votes
0answers
421 views
Permission denied on android directories?
Forgive my newness... I've installed Android Studio/Android SDK in Windows 7, enabled debugging on my Droid Turbo 2 with Android 7.0, system version 25.216.2.kinzie_verizon.verizon.en.US, and ...
0
votes
2answers
2k views
Unable to modify file permissions.xml, get error Read-only file system
I have a rooted Galaxy S5 SM-G900V, lineage_klte, ARMv7 Processor rev 1 (v71), Kernel: 3.4.113-lineageos #1 SMP, Oreo 8.1 that a friend asked me to modify.
I need to modify the platform.xml file to ...
3
votes
1answer
4k 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 ?
4
votes
1answer
16k 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 ...
5
votes
1answer
4k views
SimpleSSHD - create reusable user/password?
I have downloaded SimpleSSHD (aka Dropbear) to access my Android via SSH.
I am able to do so with the one-time password, but I'm trying to write a Python script that can access the phone.
Is there a ...
2
votes
1answer
55 views
Why do I have to get permission to save to my own phone?
I am the owner of a new Samsung Galaxy J7 (J700T). When I try to delete files with no data on them on my internal, external, or SD card, the phone tells me I am denied.
I want the files I've created....
7
votes
2answers
8k 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.
1
vote
1answer
451 views
Exclude an Android/data folder from cache cleanup
I have a game which downloads all of it's data and contents in a folder in Android/data . The size is over 400MB and device is not rooted. Every time I do a cache and junk cleanup, All files of this ...
3
votes
1answer
2k views
Why do write attempts to /system/priv-app cause /system to switch to read-only?
I'm trying to write files to the /system/priv-app directory. I boot into recovery (TWRP) and run adb shell.
~ # mount /system
~ # mount
rootfs on / type rootfs (rw,seclabel)
...
/dev/block/mmcblkXXXX ...
2
votes
0answers
6k views
Package installation in Termux
I'm reading this guide that describes how to install the statistical language R on Termux. My installation journey is briefly outlined below.
I need to determine why nothing happens at Step #2 ...
1
vote
0answers
468 views
SD card write permission issues after restoring from backup to an identical phone model
I've been using LineageOS 14.1 on a rooted unlocked Samsung S7 (G930F) for a long time. My phone started dying, so I rebooted to TWRP and managed to take a full backup to the SD card before it died. ...
1
vote
1answer
7k views
Can't create new folders on SD card?
I'm using Lenovo A7000 with Lollipop and I can't create new folders on SD Card. Attempt to create folder on SD card always end with error, however, android phone is not going to tell me what error it ...
0
votes
1answer
294 views
How to make root-created files accessible to normal users?
My device is running Android 8.0, rooted using Magisk as the su manager. I log into it using SimpleSSHD.
I'm trying to do some actions which require root access, and in the process I'm creating some ...
2
votes
0answers
70 views
Data recover/transfer from a disk image
Situation. I have a .img disk image file obtained from a .vmdk file via a virtualbox conversion, the latter being created by an Android 4.4.2 emulator. I'm trying to recover some app data and transfer ...
4
votes
1answer
3k views
How to remount sdcardfs to allow setting file permisions / ownerships?
I have a rooted OnePlus One running LineageOS 15.1 (Oreo 8.1).
I am trying to adjust some file permissions/ownerships on the emulated sdcard partition.
The partition seems to be mounted as an ...
0
votes
0answers
328 views
Running commands operating on files always results in permission denied errors
When I try executing commands operating on files, they always fail. I can't check permissions on the terminal because I'd have to run a command that operates on a file (directory) in order to do so. ...
3
votes
0answers
1k views
Play store apps cannot write to external SD Card in Android Oreo
My Galaxy S7 edge recently updated to Oreo. Now play store apps no longer have rights to write to my external SD card. I have followed app instructions about how to open a system folder chooser dialog,...
2
votes
1answer
481 views
Unable to copy files from one /data/data/ directory to another (Root)
I'm trying to copy one file from /data/data/com.application1/myfile to /data/data/com.application2/myfile
The file arrives with owner and group set to the app that it came from. I then changed the ...
0
votes
0answers
180 views
What file system for Asus Zenfone 2 on CentOS 6.9?
I'm trying to mount my Android Asus Zenfone 2 on CentOS 6.9. I created a folder in /mnt/android as the mounting point. I edited the /etc/fstab file in the following way because somewhere in some ...
2
votes
0answers
1k views
SSHDroid cannot write sd card
The title says it all.
Running android 7.1 not rooted device, I am running sshDroid on android device, ssh into it from my laptop.
When I ssh into the device and check the permissions for the SD ...
