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.
162
questions
4
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1
answer
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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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5
votes
1
answer
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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 ...
- 592
7
votes
1
answer
6k
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 ...
- 395
2
votes
1
answer
60
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....
- 21
8
votes
2
answers
15k
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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.
- 181
1
vote
1
answer
721
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 ...
- 31
3
votes
1
answer
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 ...
- 31
2
votes
0
answers
8k
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 ...
- 193
1
vote
0
answers
486
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. ...
- 576
0
votes
1
answer
8k
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 ...
- 166
0
votes
1
answer
380
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 ...
- 296
2
votes
0
answers
99
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 ...
- 41
4
votes
1
answer
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 ...
- 337
1
vote
0
answers
396
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. ...
- 245
3
votes
0
answers
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,...
- 146
2
votes
1
answer
678
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 ...
- 131
0
votes
0
answers
187
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 ...
- 101
2
votes
0
answers
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 ...
- 121
1
vote
1
answer
1k
views
Create shared folder on sdcard
Is there any way to create a directory on an external sdcard that has read/write access for multiple apps. For example I want to us synththing or rsync under termux be able to sync this directory to ...
- 111
0
votes
1
answer
82
views
Portable storage: do I have to re-grant app permissions when switching microSD cards?
I'm using a Moto Z2 Force running Android 7.1.1 with a 128 GB microSD card installed. I wanna upgrade to a 400 GB card. Would I have to re-grant microSD access app permissions for the new card, or do ...
- 38
3
votes
1
answer
3k
views
Unknown file type containing a virus
I will try to keep the story as short as possible just so you can have a more clear view of what is my concern. While, I was browsing the Internet on my phone using the Chrome Browser App, I got a ...
- 143
1
vote
1
answer
540
views
Docx document is read-only in LibreOffice
I created a docx file in LibreOffice on my computer running Debian 9.1 with KDE and copied it to my Android phone. On the phone I try to open the file with the LibreOffice app. However I can't edit ...
- 290
0
votes
1
answer
423
views
host file in android
I have a rooted device. I would like to protect my hosts file from being deleted, maybe with a password or something like that. Is this possible?
- 141
0
votes
1
answer
2k
views
Cannot paste files into System/Media
I am looking to change my boot audio but cannot change it due it not copying from my computer to my phone but I can copy from the device to my computer.
I have the latest version of Android Studio / ...
- 11
0
votes
0
answers
652
views
Why can't my phone write to external USB drive?
I bought a new 3TB USB3.0 external harddisk for storing and transferring large files (mainly hd movies from my camera) between my Android phone (Galaxy S7 edge) and my PC (Win10).
Using windows, I...
...
- 223
0
votes
2
answers
1k
views
How to use an ext4 formatted sd card as external storage with working app permissions?
I'm using LineageOS14.1 (Android 7.1.2) on a Moto G 3rd gen
I'm using a 64GB sd and my phone technically doesn't support it, it worked fine until I put more stuff on it and then it started to ...
- 1
1
vote
1
answer
2k
views
wpa_supplicant.conf permission
So I'm facing this problem for a while now . What happens is that my phone reboots automatically sometimes and after the reboot I can't use my WiFi . The button is stuck at off:
So after doing some ...
- 111
2
votes
2
answers
2k
views
Copying files from PC to "external" SD card
I've got AirDroid and SSHDroid installed on a ZTE Axon 7 running 7.1.1. The phone has a micro SD card in it, and it can access (read from) that card successfully. What I can't do is copy files onto it....
- 250
2
votes
1
answer
1k
views
System Set Permissions Accidentally, and is Corrupt
My phone's system folder at /system was corrupt. I accidentally set its permissions to rw-r--r--. Then, I reboot my phone, and nothing is working.
Here's what I mean:
1st reboot: power off;
2nd ...
- 451
0
votes
0
answers
5k
views
Permission denied reading /dev/block/mmcblk0p4 as root
I will list my main objective first, dependencies after. If there is a better path to my goal, please show me the way....
I want to install Lollipop on my HTC One S. (Or a later version, if one is ...
- 267
7
votes
2
answers
20k
views
What file systems can I use for a 128GB sdcard on Android 7.1, used as portable storage
I can't find an answer to this on StackExchange. I have a phone running beta LineageOS 14.1 (Android 7.1), and a 128GB SDXC card which I want to use as portable/shared storage between devices.
I ...
- 576
2
votes
2
answers
4k
views
Run C-executable from SD card on Termux
I have just installed termux in my Android 6 phone and have given storage permissions so I can read, write or compile from the terminal in the folder /sdcard/myC/ by using clang -o birthday birthday.c ...
- 161
0
votes
2
answers
110
views
What is actually happening on the rom when I rooting android device? What is happen on rooting? [duplicate]
What is actually happening on rooting? Is it change file system, or modify file or add new files or add new configirations....etc?
I know the meaning of rooting but I want to know how it dowing.
- 105
1
vote
2
answers
9k
views
Can't change file and folder permissions on rooted device
I can't change the file and folder permissions on my rooted android 4.4.2 device. I tried doing this from Root Explorer, Total Commander and also from terminal emulator and it didn't worked. Any idea ...
- 167
0
votes
0
answers
47
views
Why file permissions work in unexpected manner? And what makes it possible
My app doesn't have storage permissions, yet I can read/write files in /data/user/0/com.myapp/files .
When on emulator connected as root I can push a file to this directory, but then the app cannot ...
- 101
0
votes
0
answers
47
views
Secure access to a file
In an android phone, generally we use App Locker or other applications for securing applications.
Like App Locker, how to restrict media files (images and video)? I don’t want to hide them.
I would ...
- 77
1
vote
0
answers
791
views
Understanding android partitions and directories permissions
I'm playing with mount points, directories and files permissions on a rooted MotoG1 using adb (a model without SDCard Slot), and I've come into certain behaviours I can't really understand.
Connected ...
- 153
2
votes
1
answer
3k
views
How to allow read/write access in a specific folder on the SD Card with Android 6.0.1?
I like to move my AnkiDroid storage to the SD-Card, because my Anki-Decks get huge, in terms of filesize, and my internal storage is full.
Anyways (seemingly because they did not like to took the ...
- 219
0
votes
0
answers
75
views
Manage file access for apps (Linux user accounts/groups)
I recently realized that Xprivacy is not capable of restricting the file storage access. So now I'm looking for a reliable way to do that.
I guess denying the general storage permission would ...
- 337
1
vote
1
answer
935
views
Unable to change permissions for files on external storage
To clear up some disk space I moved my mp3 collection from internal to external storage. My device is rooted and I was su at the time.
The files can be seen (and played) from the File Manager, but ...
- 236
0
votes
1
answer
965
views
Permission denied in /data
My phone is getting out of storage space warnings and most of this is due to log files in /data that I cannot get to.
I'm using CyanogenMod and use Terminal to gain shell access. Issue su in the ...
- 236
2
votes
1
answer
2k
views
How can I find the group id (gid) for the sdcard_r group on android?
The question says it all. All folders on my sdcard has owner set as 0(root) and group set as sdcard_r - means all apps that have permissions to access the sdcard.
However, since I have root, I want ...
- 469
25
votes
3
answers
125k
views
No permissions for Termux to access internal storage - even for reading
Using the termux (https://termux.com) terminal-emulation program, I type the following command:
ls /sdcard
I get the following error:
ls: can't open '/sdcard': Permission denied
Realizing that the ...
- 359
2
votes
1
answer
1k
views
Android locked MicroSD card (all files read-only)
I own a Wiko Rainbow with Android 4.2.2. Out of the blue my MicroSD card got locked and I can neither create nor delete any files on my phone (such as photos). At first, I did not even understand why, ...
- 181
1
vote
1
answer
666
views
permission denied on files created via adb in recovery
I stumbled upon a strange issue - after installing new ROM (CyanogenMod 12.1), I used adb push (still in TWRP) to copy some backed up directories to internal storage - so far so good. But then in ...
- 151
0
votes
1
answer
2k
views
how to transfer a file from within system partition on android to desktop
background
I'm developing an app that downloads files to the device.. some of these files are acting out and to trouble shoot I want to actually transfer these files to my (mac) desktop and go ...
- 345
7
votes
3
answers
16k
views
Run downloaded shell command without root?
My phone is a Galaxy S3, not rooted. I have "ES File Explorer" and "Terminal Emulator" installed.
I downloaded an Android build of 'wget', intending to execute it from the Terminal Emulator app. ...
- 173
8
votes
1
answer
20k
views
Can't use chmod to alter permissions on emulated phone
So, I'm trying to make an app in android studio and I need to reference a particular file in the app, cascade.xml. I've pushed it onto the emulated phone no problem using adb (it's in the storage/...
- 341
3
votes
1
answer
3k
views
Real root can not change any thing on /system original files!
On my rooted device running Android 4.2.2, I have following tools installed:
Terminal Emulator
BusyBox Free
On Terminal Emulator, su command successfully changes user to a real root:
root@hwH30-U10:...
- 133
1
vote
1
answer
1k
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 ...
- 366