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

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how to mount permanently in Android

I've successfully mounted my router device's sdcard on '/mnt/routersd' as follows : #!/system/bin/sh su -c 'busybox mount -o remount,rw /' su -c 'mkdir -p /mnt/routersd' su -c 'busybox mount -o ...
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1answer
91 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 ...
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1answer
1k views

No USB Storage Mode on GalaxyNexus running 4.2.2

I have a GalaxyNexus running Android 4.2.2 I just want to quickly backup some data files to my PC. I'm pretty sure I've done this many times before, but I guess not on this phone. I have the Android ...
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29 views

How do i get files off this phone?

I use linux, I made a video, and tried to send it to my self. Then it did not send, the file is over 20MB, and would not attach to an email. Fine, I used AndFTP to send it to my ssh server. It got ...
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3answers
71 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?
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165 views

Is it possible to locate deleted messages (sms) on a zte maven?

recently cleaned excess crap from friends ZTE812 MAVEN only to discover they wanted to keep the text messages. I haven't factory reset, only surface delete. Is it possible to recover those messages, ...
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0answers
36 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 ...
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2answers
4k views

Is it safe to delete all empty folders in Android?

Almost every Android "cleaning" app (such as SD Maid) includes the ability to delete all empty folders. In operating systems such as Windows, this is generally not a good idea. Windows applications ...
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77 views

Internal storage - free and occuppied space do not add to total

On Sony Xperia Z2, I have 5.6 GB on /storage/emulated/0, then 2.3 GB in /. However, the whole internal storage has 12 GB, and I can only see under 2 GB of free space. Where is the remaining 2 GB?
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0answers
23 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 ...
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1answer
264 views

When should fstrim run?

Based on this cyanogenmod forum thread, I tried to address the delay in running applications and switching between applications on my Galaxy Nexus running cyanogenmod with Android 4.4.4 by running ...
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1answer
307 views

data/app folder showing wrong folder names

After messing around with the xposed framework and installing lots of modules, I got into a bootloop (classic !), but I knew the solution was to add a disabled file in ...
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0answers
334 views

Periodic filesystem checks are a very good idea. Do any major flagship devices ever do them automatically?

It's a very good idea for your OS to do periodic filesystem checks. Here's why. Microsoft program manager Kiran Bangalore writes that there are certain cases in which a filesystem can become ...
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2answers
17k views

Which filesystem do Android use?

I know that android uses FAT32 for SD cards and mounts them via FUSE. But which FS is on / ? Some kind of ext? zfs?
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1answer
260 views

Moving /storage/sdcard0 from NAND to a removable MicroSD card: will it break anything?

Background information I own a Samsung Galaxy S Relay 4G running Android 4.1.2. It comes with 8 GB of built-in NAND flash, which is almost full by now. Luckily, it also has a MicroSD card slot. My ...
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1answer
102 views

Can I write to my device's root filesystem? Will my changes persist across reboots?

When I open up a terminal emulator and run the mount command, it indicates that my Android device's root filesystem (/) is of filesystem type rootfs. What is rootfs? Can I write to it? Will my changes ...
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137 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. ...
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107 views

Use a disk image for Link2SD's 2nd partition

Well, this question is targeted for those few devices without support for an external SD card as well as merged storage, for example my Micromax Canvas Knight A350. I thought this up today: If we ...
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4answers
10k views

How can I make the system folder writable without rooting?

My device is Sprint Samsung Galaxy S III Model number: SPH-L710 I want to do this, because I want to stop the camera shutter sound. And I don't want to root my device.
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1k views

File systems supported on Nexus Player

I have a Nexus player running Android 6.0 (Marshmallow), and would like to connect a USB hard drive (through a USB OTG cable) to it and watch videos off it. I've installed ES File Explorer and Kodi. ...
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0answers
46 views

Filesystem check

I'm using a Trio Stealth Gen 5 on 4.5 I think with some crashed reboots I may have messed up my filesystem. I've never used Linux prior to this, but some Google searching lead me to a few things. I ...
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0answers
87 views

After Custom Rom My Device Become Very Slow

I am using QMobile Noir A8 (it's a Pakistani Android device) with custom ROM. I am having a problem with the custom ROM. My device becomes very slow when I connect to the internet. All apps (Facebook, ...
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0answers
17 views

Location of temporary sound files for Auri?

Auri is a text to speech app for Reddit. I'm trying to download the sound files it creates, and if possible load them with the app offline, though neither are supported features. I'm using a rooted ...
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0answers
97 views

Incomplete file list when browsing file system of Nexus 5 in Windows 7 / 10

I connected my Nexus 5 (Android 6.0) to my Windows PC via USB (tried both MTP and PTP mode) and noticed that the file list in Explorer was incomplete. I compared the file list in ES on my Android ...
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1answer
77 views

Nexus 5 with zero-length partitions

So something is wrong with either the partition or the eMMC. TWRP is unable to erase/reformat/repair any partition (console lists partitions that fail to mount: /data, /data/media, /system, /cache) ...
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1answer
55 views

File size in different devices [closed]

I'm working on an Android app which downloads new-updated resources from a remote server whose platform isn't specified yet. The app compares the size of the pre-downloaded local file and the remote ...
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1answer
126 views

How to clear a Folder (e.g. Downloads) automatically on a regular/scheduled basis?

There is a folder on an Android phone that continually fills with junk. Instead of clearing that folder manually on a regular basis, how can I setup up a way to have that folder be automatically ...
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1answer
60 views

How does the Linux filesystem on Android get mapped to “Computer\PhoneName\Phone” on Windows 7?

I am trying to figure out, when I use adb shell I see a filesystem with directories such as /storage/emulated/0. When I connect my Android phone to Windows 7 I see something like the following folder: ...
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1answer
4k views

Android limited to 1 hour video recording?

At the moment, I am using the standard video recording app for video recording. I have found that the recording automatically stops after just 1 hour. Is this a deliberate limitation placed on the ...
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27 views

What is the point of separating the kernel and the rest of the operating system?

With all of the Android devices that I've seen, the Linux kernel and the initial RAM disk are placed in (the poorly named) boot.img and the rest of the operating system is placed in system.img or ...
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1answer
506 views

Enabling USB debugging from open file system access using custom recovery

Of course this should be possible, but finding the correct files to modify is the real question. Assuming we can boot into a custom recovery and have full access to the file system, has anyone ...
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2answers
10k views

Reason SD cards come FAT formated instead of Fat32?

I found my SD card to be FAT formated instead of a modern filesystem (at least fat32). This comes with the disadvantage of large allocation unit size (32kb) whilst most of the files are less than ...
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2answers
457 views

System audio files appearing in playlist

I wasn't satisfied with the selection of sounds the phone was giving me for the alarm, so I installed ES File Explorer and picked out some ringtone sounds from the phone's system/media/audio folder. ...
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3answers
8k views

Where does the 'set as wallpaper' feature save your picture in Gingerbread (2.3)?

I had an image from a website which I set as my background inside the browser. I am wondering now where I can find the image in the file system, because I can't find it online anymore. I already ...
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0answers
63 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
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1answer
94 views

How can you get a local filesystem link of an offline-accessible PDF file in Dropbox?

I would like to get a link to a pdf file in my local Dropbox of my android. This is because I want to access the file by the syntax /local/system/something/file.pdf#page=116 in Internet Browser. I ...
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10answers
74k views

Not all files are visible over MTP

I have LG L5 (e610 model) device with Cyanogenmod 10. When I connect the phone to a computer with Linux (I have mtpfs installed), I can see both internal storage and the SD card. However when I ...
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1answer
37k views

Why did /sdcard/ turn into /sdcard/0/ with 4.2?

I've never seen this before so I'm assuming that it happened when I upgraded to 4.2: I'm fairly certain that /sdcard/ used to take me straight to my sdcard, but now when I go to that path (in CWM ...
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2answers
31k views

Format memory card with NTFS

I have a Galaxy SIII and 32GB memory card. I want format the memory card with NTFS just to get rid of 4GB size per file restriction. How can I format the card with NTFS and even if I format it with ...
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0answers
501 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 ...
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1answer
163 views

Access Android file system through ubuntu 14.04 over LAN

I have SOC which run android 4.4. I have connect this to my network using LAN. Now I want to access android root file using my Ubuntu desktop. Something like ssh. How to do this?
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0answers
87 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, ...
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0answers
53 views

Unable to mount '/efs'

I am having trouble with mounting /efs on my Galaxy S3, which is running on cyanogenmod 10.2. I have already tried this tutorial but with no luck. Also, I found a .bak file that is supposed to fix ...
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0answers
307 views

repack system.img for htc desire 516

I've unpacked the system.img from HTC Desire 516 firmware to add some missing languages pack, both unpacking and editing the system image done, but i'm unable to repack the system image, i'm using ...
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2answers
455 views

how do I view files on micro sd?

I just saved the files from my flip phone to a micro sd card, and put that micro sd card in my android tablet. I went to the file manager, but I didn’t see anything for mounting the sd device, or that ...
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2answers
17k views

How do I make /sdcard link point to external SD Card on Android 4.4.2?

I've got a Samsung GT-I9505 phone with Google Edition Rom installed. As my phone comes with 16Gb internal storage, I bought a 32Gb microSD. However, the phone still uses emulated SD card to store all ...
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1answer
48 views

Can I access the filesystem of an android device?

I have an android device that doesn't start because it tries to activate carrier's network. Its out-of-contact CDMA mobile which was ported to another carrier. I accidently did a reset and after that ...
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1answer
5k views

Cannot find where Google Play Music stores downloaded files (different from similar posts)

About a year or two ago, I decided to use Google Play Music as my "cloud host", so I took all of my old music that I'd had sitting on my computer, and uploaded it to Google Play Music. This is all my ...
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1answer
680 views

How apps write data into file-system on non-rooted device?

User Apps and Data are stored in /data/app and /data/data respectively. But we can't (even) see that without root permission. So, I want to know If device is non-rooted then How user Apps are ...
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2answers
84 views

Missing 20 Gigabyte of Free Space

I've recently noticed that my Galaxy Note 3 32GB model ran out of storage. My Samsung File Explorer App says that I've got about 3GB of storage left of 32GB. My problem now is that I can't figure out ...