Questions tagged [file-system]

A file system is the logical structure to organize (store, retrieve and update) data on a storage device.

Filter by
Sorted by
Tagged with
15
votes
1answer
16k views

What kind of data is stored in /data/user directory?

It seems to store some kind of application data, but how is it different from /data/data directory?
7
votes
1answer
4k views

How to “mount --bind” directories in Android 4.4?

I am just wondering is there a way to bind an internal /sdcard folder to another internal /sdcard folder and normal apps can write into it for Android versions since 4.4? I have a folder named ./...
10
votes
1answer
17k views

Why can I not assign exec permissions to a file on the SD card?

shell@android:/sdcard/SW # ls -l -rw-rw-r-- root sdcard_rw 128 2012-09-22 11:42 usb0config.sh shell@android:/sdcard/SW # chmod 777 usb0config.sh shell@android:/...
9
votes
3answers
42k views

What exactly is framework-res.apk

As far as I understand it, it is a big system file that apparently controls a big part of the phone. I am interested because I wanted to do some themeing and so far I had edited SystemUI.apk, but if I ...
4
votes
2answers
2k views

Is it possible to reorganize the SD card? Because it is a mess in there

One of the things I hate about Android is the folder organization. Each app creates its own folder, usually in the root of the SD card. When I'm trying to find something, I have to search it through ...
3
votes
1answer
2k views

The /sdcard direcory and other directory conventions: how is the Android filesystem structured?

I am using the "adb shell" command to access either of an LG P690 (device A) or a Samsung Galaxy SIII (device B). Device A also has a 32GB microSD card plugged in while device B does not. When fromthe ...
2
votes
2answers
1k views

How do I record a ~45 minute 1080p video with external mic?

I am currently using the camcorder function that comes with lgcamera because it allows me to use the microphone as the source of sound input. But I found that it stops when the recording size reaches ...
8
votes
1answer
5k views

Does Android have a 2.1GB file size limit?

I have tried many voice recording type applications and the best I have found only allows me to do a recording upto a maximum file size of 2.1GB. I can do many of these 2.1GB recordings as I have a ...
7
votes
1answer
5k views

Is it safe to manually delete the contents of the .Trash-1000 folder on my SDCard?

Can anyone please provide an explanation (or a good resource) of how the folder /mnt/sdcard/.Trash-1000 functions and whether or not it was safe to manually delete its contents? Based on the name and ...
4
votes
1answer
10k views

How (where) do I browse to the /data/Tombstones (on the System Partition, I think)?

Trying to delete some files from my System partition. Someone suggested deleting /data/Tombstones (I.e., what's the Path to it so I can browse to it) Using Astro File manager I navigated from the ...
3
votes
4answers
7k views

Why do I get “not enough space” when I copy an APK file to /system/app?

I recently rooted my HTC Desire Bravo because I needed read/write access to /system/app in order to be able to copy an APK file there. I wrote here on stackexchange on the best solution to root the ...
3
votes
1answer
5k views

How to resize the /data F2FS partition

Context: I wiped all the partitions from my Moto G device with the TWRP recovery and installed Cyanogen 13 on it. Then I had issues when enabling Encryption: the phone just restarts but does not ...
3
votes
1answer
8k views

Creating App and Swap partition for Android

I have got Karbonn A5+. I dont know how much ROM, RAM it exactly have. When I go to Settings > Applications > Manage Application it shows 191MB used, 11MB free. But, when I open Advanced Task Killer, ...
2
votes
1answer
587 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 ...
2
votes
1answer
498 views

SD Card partition named differently on different devices - breaks music player

I have recently moved from a Droid 2 to Droid 3, both running Android 2.3. The same SD card registers as "sdcard" on the D2, and "sdcard ext" on D3. Probably for this reason, I am having problems with ...
1
vote
1answer
270 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
votes
1answer
1k views

Build.prop modifies okay. But not updates in system (e.g. About Tablet in settings)

I am running Android-x86 4.4 on VirtualBox. Everything works fine. But when I am modifying build.prop (with ES File Explorer or BuildProp Editor) with other manufacturer or model and save it. After ...
7
votes
2answers
1k views

How to create a shortcut to a text file

I have a text file somewhere on the SD card. How can I create a shortcut to this file on the "desktop" to open it immediately? (HTC Wildfire)
5
votes
1answer
4k views

What does the /data/system folder store and its significance?

I know that /data partition contains user-generated data (/data/app - user apps, /data/data - app data, etc). But what is the /data/system folder used for, and does it have any significance in the ...
5
votes
2answers
14k views

How to check filesystem (/sdcard) for errors?

I would like to check my /sdcard, and possibly other internal partitions as well, for errors on the file system level. I am wondering how this could be accomplished. I am using a Samsung Galaxy ...
4
votes
3answers
7k views

Can't access my old files after switching ROM from AOKP to CM, even though they're still there

Initially I thought this was a problem with Google Play / Apollo, but I realize now that when I plug in my phone via USB, I can't see any of the many, many folders and files present on /sdcard that I ...
4
votes
1answer
17k views

How to format /storage/sdcard0 in ext4

I tried to create a symbolic link on the "internal SD card" of my Galaxy SD2. It failed with "permission denied" and I quickly realized this file system is vfat. How can I reformat /storage/sdcard0 ...
3
votes
2answers
5k views

How to check support for ext2 filesystem on android device

I have a android mobile with gingerbread 2.3.4 installed. I want to know if my device(kernel) supports ext2 filesystem. Is there any terminal command to check the support for ext2 filesystem ?
3
votes
3answers
5k views

What does /mnt/asec directory contain?

What does /mnt/asec directory contain in Android? Can someone explain in brief?
2
votes
1answer
29k views

I'm seeing duplicated images and videos on Gallery

I'm facing a strange situation on my Nexus 4, with Android version 4.2.2. I've being using it for the past 2 months without any issues whatsoever (other than a "regular" battery performance), but ...
2
votes
1answer
12k views

/system cannot be remounted as RW, even when rooted (Sony Xperia E3)

I rooted my Sony Xperia E3 (D2203) a while ago using Kingroot, which worked flawlessly. Before rooting my device, /system could be accessed, which is how root was installed in the first place. ...
2
votes
1answer
3k views

How to partition SD card in HTC One X?

I was trying to create ext2/ext3/ext4 partitions on the SD card. I tried ClockworkMod recovery and it didn't work. Nothing seems to have happened. I also tried using MiniTool and that also failed. I ...
2
votes
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, ...
2
votes
1answer
1k views

Where does Lollipop stores notification policy?

Unlike its predecessor Android versions which saves notification policy in the file /data/system/notification_policy.xml (the file which saves the package name of apps you've selected to stop giving ...
2
votes
1answer
203 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 ...
2
votes
2answers
15k views

I modified vold.fstab and lost access to my SD card

Background: I have Samsung Galaxy Ace GT-S5830, which has very low internal memory (181 MB). I have an external micro SD card of 16 GB, but still couldn't install many apps due to insufficient ...
2
votes
1answer
6k views

Why is EXT3 not supported on Android?

Android uses the Linux kernel instead of some "Android kernel", so why is ext3 not supported on Android 2.3?
1
vote
0answers
180 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 ...
1
vote
0answers
905 views

Where are the lollipop OTA system upgrade files stored?

Android devices automatically download OTA system update files and store them on your device until you install them. Then you get a notification that the file has been downloaded. I do not want to ...
1
vote
1answer
13k views

Why does Android use fuse for internal SD card mount? [closed]

The android ICS or later version(JB) use /data/media directory for internal SD card, and use fuse for mounting the emulator internal sd card device (/dev/fuse). As we know if we use fuse, the files ...
1
vote
1answer
188 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 ...
1
vote
1answer
92 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, ...
1
vote
1answer
685 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 ...
1
vote
3answers
5k views

How to force TRIM on Android device?

With 4.3 enabling the support for TRIM (though I read that it was present since the first JB). I was wondering if there is a way for me to force TRIM on my device? Is there an app that I can sideload ...
1
vote
0answers
5k views

Why can't I access the files on my SD card?

I have a Motorola Droid Bionic which I recently updated to Android 4.1.2. Since the update, I can no longer access any of the files on the 32GB micro SD card I installed in the phone. I can view all ...
1
vote
1answer
521 views

File permission os SD card (FAT32)

Android uses FUSE for SD cards. Does FUSE support file permissions for SD card? If no - how do I install some apps on SD card? Cause there is no support for symlinks, execution permission etc.
0
votes
1answer
137 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 ...
0
votes
1answer
1k views

It's there a way to get /system partition permanent read/write access even after reboot?

I used ADB.exe to get access to my System partition, I linked the dalvik-cache folder there to save space on my data partition, but the problem is I need to convert it read/write everytime I want to ...
0
votes
1answer
3k views

Is the external micro SD card path the same for all devices?

I am using a Samsung Tab 2. There is a path: /mnt/external_sdcard/myfile. Here, I can save, read, or write my file to the external micro SD card. I'm just wondering if this path is the same for all ...
0
votes
3answers
175 views

Available memory of a 16GB microSD card?

Out of my newly bought Class 10 16GB microSD card I am getting only 14.71GB. Is this normal?
0
votes
1answer
1k views

How to enable pip, QPython to write to Android filesystem?

I have been following this guide to install youtube-dl on my Android phone. http://www.arulraj.net/2015/11/download-any-videos-in-android-using-youtube-dl.html However, when downloading the videos, ...
0
votes
1answer
5k views

What is the path where GoSMS stores the SMS messages

How say the title I can't find where the sms are stored. I see this similar question but the replies haven't helped me. I have gosms and I want delete all messages, but if I do this option with gosms ...
0
votes
1answer
767 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.