Questions tagged [file-system]

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

194 questions with no upvoted or accepted answers
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14
votes
1answer
355 views

Are there any Google devices that support capabilities in their default kernel?

If I systemless root (no modification done to /system partition) a Nexus device, would I be able to able to set capabilities on executables without changing the original kernel binary ? I often want ...
13
votes
1answer
3k views

Why is there no option to choose size in TWRP's resize partition feature?

I'm trying to reflash an old Galaxy Note N5100 but I realized that the system partition is too big (~1.5GB). The current ROM uses only about 40% of the partition so I want to shrink it to make space ...
7
votes
0answers
69 views

1.5 GB limit on file seek addressing?

I am trying to transfer 5.4 GB file form an android internal memory (Sony Xperia Z2). But it seems that most applications have issues addressing the file beyond cca 1.5 GB. They just can't read the ...
5
votes
2answers
13k views

Need absolute path to “Download” on Android 6.01

...Due to the developer / maintainer of Terminal-IDE moving on, I'm trying to find equivalent capability and after hours of research found "Terminal Emulator for Android" (which is the same app as "...
4
votes
1answer
151 views

Getting the Europa notification tone off my old phone

I'm moving from a Nexus 5X to a shiny new OnePlus 5T. I like my old Europa notification tone, but it's not on my new phone, and I couldn't find a way to find the file on my old phone without rooting ...
4
votes
1answer
233 views

Why is Android showing a different hosts file once my system is booted versus in recovery?

In the past, I've used a modified hosts file on my system that I place at /system/etc/hosts. The process is pretty straightforward Boot into recovery using a custom recovery. Mount /system read-write ...
4
votes
0answers
4k views

How to mount an Android sdcardfs formatted microSD card in Linux?

Suppose I take out the microSD card from my Cyanogenmod 13/Android 6 phone, put it in a card reader and want to access it within my Ubuntu desktop. The first partition (16M) mounts automatically, ...
4
votes
0answers
2k views

Create sdcard0 symlink on 6.0.1 for WhatsApp compatibility

I recently switched from a Galaxy S2 running CM 10.2 (Android 4.3.1) to a Nexus 5 running 6.0.1 (stock rooted). My goal was to migrate all my WhatsApp data (history, media, etc.) over to the new ...
4
votes
0answers
1k views

What is the /config file in the android root directory used for?

In the / directory of an android device is a file called config what is this file used for? I am assuming it is used for configuration files and other things but my Google searching has not been able ...
3
votes
0answers
440 views

Mount encrypted emulated avd userdata-qemu.img.qcow2

I'm trying to make a backup of my AVD. To speed things up, I like to make incremental backups. Backing up the *.img.qcow2 file(s) is inefficient. I'd like to be able to mount the filesystem that ...
3
votes
0answers
135 views

Is there a way to replace the Android system file manager with a third-party file manager?

I'm using an OnePlus 3 with Android 6 (Marshmallow). For me the standard Android system file manager that opens when you want to send a photo or video via WhatsApp is just horrible. It's slow and you ...
3
votes
1answer
5k views

XT1064 - 5.0.1 - Rooted - Issues with writing to /sdcard

I just rooted my Moto G 2014 XT1064 running 5.0.1. I used this article to do the root process: http://maktechblog.com/how-to-unlock-the-bootloader-and-root-the-motorola-moto-g-2nd-gen/#Root Which ...
2
votes
1answer
354 views

How to find UID of an app installed on Android and use it as a shell user?

I am trying to find a way to determine the user name of the current shell user from within a shell / terminal on an Android device. The Android environment that I have in /system/bin and /system/xbin ...
2
votes
0answers
926 views

Open local file from Excel Cell in Android

In Android, I wish to open a local file from a Hyperlink in Excel. XLSX file and the linked image are in the same directory folder. I've tried the following: =HYPERLINK("cat.jpg", "Cat") =HYPERLINK("...
2
votes
0answers
561 views

Change video timestamp on non-rooted device?

I thought I'd be clever and compress some old video files taken with my phone camera using the Video Dieter 2 app. It worked fine, except the new files have new (random) names and their modified ...
2
votes
0answers
154 views

Where are the PRL and profile stored on the filesystem?

I'm talking about what can be updated in Settings->More->Cellular networks->Carrier settings. Where are they stored? On what partition and where, if anywhere, on the filesystem?
2
votes
0answers
93 views

When should I run a consistency check on my removable MicroSD card?

I own an Android device with a removable MicroSD card. The card uses either FAT32 or ExFAT technology. These are "non-journaling filesystem" technologies, so the data on the cards can become corrupted ...
2
votes
0answers
98 views

How can I run a consistency check on my removable MicroSD card?

I own an Android device with a removable MicroSD card. The card uses either FAT32 or ExFAT technology. These are "non-journaling filesystem" technologies, so the data on the cards can become corrupted ...
2
votes
0answers
1k views

delete operation are extremely slow

For some reason, moving files from my Nexus 5X to my PC takes huge amounts of time. The copy "part" of the move operation is pretty much as fast as on any other Android device I've used (I can see ...
2
votes
0answers
802 views

Install system app fails

I have a Samsung Galaxy S7 which I have rooted. I am attempting to move app updates to /system/app to save space on my /data/ partition. I follow the standard process (not enough points to link yet): ...
2
votes
1answer
901 views

How to make bind-mounted (mount -o bind) folders visible for non-root users?

I want to mount-bind an app data folder in /data/data/... to a user subfolder in order to automatically synchronize the contents for backup purposes. As root I use the following command: mount -o ...
2
votes
1answer
749 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, ...
2
votes
0answers
185 views

Setting creation time attribute on exFAT to “atime” from ext4

I have to move files from my internal storage to the SD Card. While cp -p does its job fine to an ext4 formatted card, moving/copying files to exFAT only keeps the file modification time but sets ...
2
votes
0answers
609 views

Phone stuck at boot logo, cannot wipe data/factory reset

I will explain what happened: I opened up terminal emulator then typed cd /system/xbinls fsc* then /dev/block/vold/179:17 then mount then my tab got stuck and then it switched off automatically. ...
2
votes
0answers
145 views

Retrieve Stock Browser History?

I have a Galaxy S4 and today 45 browser tabs I've been using for about six months just disappeared (should have been bookmarking things, yes). Is there a way I can retrieve my browser history via my ...
2
votes
0answers
368 views

Is there any working method to mount Ext4 partitions on 64 bit Android 5?

Is seems that, as for today, there are no working methods (apps or hacks) to make Ext4 partitions work (read/write) on my Android v5.1 64 bits. My device is a Jiayu S3 with a Xtreme ROM (not stock, ...
2
votes
0answers
1k views

File copied to /system/bin keeps disappearing

After copying Sqlite3 to by /system/bin folder, the file disappears. I can successfully change the folder to rw and modify the file properties on sqlite3. However, as soon as I remount my /system as ...
2
votes
1answer
1k views

Is it possible to restrict an app's permissions to a specific folder(s) (and subfolders)?

When installing an app, depending on the app, access to the filesystem is required and requested at the time of install. Is it possible to restrict this to specific folders(s) and their subfolders? ...
2
votes
0answers
202 views

What are these small 8-4-4-4-12 hexdigits-named files in root dir?

(Post edited to add more info.) My Android phone contains, in the lowest user-accessible directories of both phone storage and SD card, several small files named xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx ...
2
votes
0answers
659 views

Select file from Downloads to upload via web form

I'm on a Samsung Galaxy S3 and want to upload a file from my Downloads folder to a website using a form on that web page. But when I click the button to browse for a file to upload, I can only select ...
2
votes
0answers
1k views

Should I switch to F2FS?

I've heard a lot of hype about Samsung's filesystem named Flash-Friendly File System (or F2FS for short). I've heard about cases where the device apparently worked faster after switching to this ...
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
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
0answers
238 views

File transfer with multiple users

On a rooted Nexus 7 (2013), I have set up a second user. When I plug the usb cable to my mac, I can see all the files for the main user (using the Android File Transfer app from Google). However, ...
2
votes
0answers
457 views

“Low on space” message, but nothing appears full

GalaxyS (SGH-I897), running Android 4.0.4 Short problem description I keep getting "Low on Space: Phone storage space is getting low" error in my notifications bar, but neither the SD card nor the ...
2
votes
1answer
823 views

Samsung Galaxy S4 play edition and exFat

Does the Play version of the Galaxy s4 include support for exFat in the sdcard reader? Or is exFat support one of the extras that Samsung adds to the device (presumably since they made the licencing ...
2
votes
1answer
2k views

Corrupt Internal Storage File System

I am using an original RAZR that is partitioned using Safestrap running stock 4.1 on one partition and CM10.1 on the other. My problem is the internal storage (internal SD card I believe) partition ...
2
votes
0answers
358 views

Would any of the advanced Linux/UNIX filesystems be viable on Android?

I know ext4 is already used as an internal filesystem but I wondered if there would be anything gained by using something like btrfs or ZFS? I know they are meant for more server-oriented situations ...
2
votes
0answers
121 views

How can I “Share To” a network folder from my photo gallery?

I have an HTC Thunderbolt running Ice Cream Sandwich If I open up my photo gallery and tap on a picture, the "Share" option appears. Clicking on this gives me some options, such as Facebook, ...
2
votes
0answers
5k views

USB file transfer only works when HTC One X is connected in internet pass-through mode

When I connect my HTC One X via USB to my PC, I can see my Android storage only when my phone is connected in internet pass-through mode. I set the mode by Settings > More > Mobile network ...
2
votes
0answers
440 views

Persisting permissions on /mnt/shell after reboot

CWM Nandroid backups are being stored in /mnt/shell/emulated/clockworkmod I want to use DropSync (or something similar) to automatically upload the contents of this folder to Dropbox as a backup ...
2
votes
0answers
1k views

Any way to use another name for the external_sdcard folder?

On my Android tablet, the SD Card is shown as an external_sdcard folder, no matter how I rename the card. Personally I don't like the auto-assigned folder name. Is there a way to use a different ...
1
vote
1answer
103 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 ...
1
vote
1answer
257 views

How to change random filesystem label on USB OTG?

I am without PC right now, but I need to Format USB Drive (to FAT32 or Ext4) with Samsung S8 (Android 9) and change label. But I can't find any app that can do this. I can format USB drive in Storage ...
1
vote
0answers
36 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 ...
1
vote
1answer
68 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,...
1
vote
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 ...
1
vote
0answers
179 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 ...
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
1answer
26 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 ...