27
votes
Accepted
How to recover a deleted file from /data partition on a rooted phone?
First to clarify root and data:
Root directory / of Android devices is a read-only pseudo (temporary) filesystem (rootfs) that lives in RAM and is vanished when device is powered off. When device is ...
- 21.2k
9
votes
Accepted
Why do partitions get unmounted automatically after some time?
SHORT ANSWER
Go to Magisk Settings and set Mount Namespace Mode to Global once for all. In SuperSU app, disable Mount Namespace Separation.
OR
For one time solution, use this command instead:
~$ su -...
- 21.2k
7
votes
How would you use your ext4 formatted thumb drive via OTG on Android?
External SD cards and USB OTG drives (since Android 6) are handled by vold which supports only FAT[N] (vfat) and exFAT (since Android 9 provided that OEM adds support to kernel) filesystems on stock ...
- 21.2k
3
votes
Accepted
How to create and use multiple partitions on external SD card with different filesystems (Ext4, exFAT, NTFS)?
A few points on four partitions:
Dedicated first partition exFAT or NTFS or FAT32 (whichever Android permits and gives optimum performance) to store apps, photos and media.
For apps consider ...
- 21.2k
3
votes
Accepted
Change File System of Internal Storage to EXT4
Install twrp recovery (google it)
Boot into recovery
Go to wipe -> advance wipe -> select the system partition -> change file system -> select ext4 format
Done
- 46
3
votes
External Ext4 card mounted only for root (!) on Android 5.1 64 bits
Edit 2020-06-03: If you would like to see a way more detailed answer in how the mounting ecosystem works under Android, you may have a look at this answer: How to bind mount a folder inside /sdcard ...
- 31
2
votes
Make the internal SD card storage act like normal Ext4 storage (with file system permission management)
You seem to be missing the point. Actually a few of them:
Emulated SD Card storage has nothing to do with the lack of physical SD card support by some devices.
It is a public storage area by design.
...
- 406
2
votes
How to read ext4 filesystem without mounting on a non-rooted device?
ext4 can be explored without mounting, using debugfs tool. But natively there is no way to access raw filesystem without root access on Android devices. Partitions are enumerated as block devices by ...
- 21.2k
2
votes
how to extend support for EXT4 file system for microSD cards in stock or non lineage / CyanogenMod ROMS
I don't think I understand your question fully. It's not clear what and how you have tried so far and faced what constraints or limitations in achieving what you want to. But precisely answering your ...
- 21.2k
1
vote
How to create and use multiple partitions on external SD card with different filesystems (Ext4, exFAT, NTFS)?
just partitioning and formatting from adb shell (needs to be umount)
(for doing this in recovery, delete all strings /data/local and su -c from command list)
adb push parted /data/local/tmp
adb ...
- 4,259
1
vote
Does Android 8 has journaling enabled in its ext4 files sytem?
Does Android 8 has journaling enabled in its ext4 files system?
It depends on a few factors. OEMs can possibly disable journaling e.g. on system partition as it's always supposed to be used R/O. ...
- 21.2k
1
vote
How to mount (or auto mount) a USB stick formatted with ext4 and be visible or working with apps on Android 5 Marshmallow and later versions?
We still need root. First I need to make a dir in /data/media/0/ (/sdcard)
mkdir /data/media/0/usb1/
which means USB is not detected as USB ever, but I can read data from apps that it is what I want.
...
- 131
1
vote
Accepted
Can't create a primary, not a logical partition in SD Card
1. Answer
Unfortunately, in this case you need buy a new SD Card.
2. Argumentation
4pda post:
Если у вас не записываются новые данные на карту, а старые после удаления появляются вновь, и ...
- 169
1
vote
Linux Deploy ext4 and Adoptable Storage
Here how I'get 16gb on Linux deploy hope this help somebody:
Use twrp, advanced, make partition ext4 swap 0 (https://www.xda-developers.com/how-to-install-twrp/)
Use the Linux deploy terminal, ...
1
vote
Mounting a ext4 formatted sdcard on Android Marshmallow
UPDATE an better solution https://android.stackexchange.com/a/204616/119381
First steps:
I could mount and use my pen usb with ext4 after install [1] but still bery tricky (need root) I need first ...
- 131
1
vote
Can I use ext4 on my SD card in a non-rooted phone?
I tried LineageOS 14.1(android 7.1.2), it support sdcard(tf-card) formatted in ext4.
Though it format sdcard to vfat defaultly, if you don't make any patch.
The easiest way is to format the sdcard ...
- 111
Only top scored, non community-wiki answers of a minimum length are eligible