Many users are faced with the need to find the root directory on their device when standard methods of clearing memory or transferring files stop working. Typically, this request occurs when trying to remove system junk, change fonts, or install modified versions of applications that require deep access to the file system. Understanding the folder structure is fundamental to any advanced interaction with the operating system.
In standard operating mode Android hides critical sections from the user's view to prevent accidental damage to the system. However, by knowing the exact paths and using the right tools, it is possible to safely explore the internal structure of the device. It is important to distinguish between the concepts of “file system root” and “root access”, since these are two different entities, although they are closely related.
In this article we will look in detail at where the root directory is physically and logically located, what folders are located there and what risks are involved in interfering in this area. You'll learn how to access hidden partitions without losing warranty and how to properly work with system files if the need arises.
Physical location and logical structure
When we talk about where the root directory is, we often mean two different levels of access. The first level is the device's internal memory, visible as the "root" to the user (/storage/emulated/0), and the second is the actual root of the Linux file system it is based on Android (/). It is the second level that is of interest to advanced users, since the system partitions are located there.
Physically, all data is stored on eMMC or UFS flash memory, which is soldered to the smartphone’s motherboard. Logically, this memory is divided into several sections, each of which has its own mount point. Root section (often referred to simply as /) contains the system kernel, drivers and basic executable files. Without access to this level, it is impossible to change the behavior of the system at a fundamental level.
The standard user interface does not show this structure, limiting access to media folders and documents. This is done for security purposes: accidentally deleting a file from the system partition can turn the device into a “brick.” Therefore, special tools with elevated privileges are required to navigate the real root.
⚠️ Attention: Directly editing files in the real root directory (/) without a full backup may result in the inability to boot the operating system.
on system. Always make a backup before making changes.
Difference between internal memory and system partition
A common mistake for newbies is to confuse the user’s internal memory with the system partition. The internal memory, accessible through any file manager, is technically an emulated partition. The path to it looks like /storage/emulated/0 or /sdcard. Your photos, downloads and application cache are stored here, but this is not the “root” in the understanding of system administration.
The real root directory, or Root Directory, is located a level higher and contains folders critical for the operation of the OS, such as /system, /data, /vendor and /boot. Access to them is closed by default even to the built-in file manager. To see these folders, the device must have an unlocked bootloader or activated superuser rights.
The difference also lies in the file system. The user partition is often formatted in F2FS or EXT4 with access rights allowing read and write by any application. The system partition in modern versions of Android is often mounted as read-only (read-only), which requires special procedures to change it, even if you have root access.
Use the "ls -l" command in the terminal to see folder permissions. The symbol "r" means read, "w" means write, and "x" means execution.
Tools for accessing root folders
Standard tools are not enough to navigate hidden sections. You will need specialized software that can request elevated privileges. The most popular solution is to use file managers with Rootsupport, such as Root Explorer, Solid Explorer or MiXplorer. These applications may request superuser rights when launched.
The second, more professional method is to use a debug bridge. Android Debug Bridge (ADB). This tool allows you to connect your smartphone to your computer and manage the file system through the command line. This is a safer method, since it does not require installing questionable applications directly on the device, but does require a PC.
The third option is to use terminal emulators such as Termux or Terminal Emulator. By running the command su inside such an emulator, you can gain direct access to the root console and navigate through directories using text commands. This method is preferred by developers and experienced users.
- 📁 Root Explorer - a classic manager with a tree structure and the ability to edit system files.
- 💻 ADB Tools - an official tool from Google for managing the device from a computer.
- 📱 Termux - a powerful terminal emulator that turns Android into a semblance of a Linux distribution.
The main folders of the root directory and their purpose
Understanding the purpose of each folder in the root directory is critical. Below is a table of the main partitions you may encounter when exploring the file system. Knowing their functions will help you avoid fatal errors.
| Folder | Description | Can I delete |
|---|---|---|
| /system | Contains the operating system, default applications and libraries. | No (critical) |
| /data | User data, installed applications and their cache are stored here. | Only individual caches |
| /cache | Temporary system files that can be cleared to speed up work. | Yes (safe) |
| /vendor | Drivers and proprietary files from the manufacturer equipment. | No (critical) |
| /sdcard | Link to the user's internal memory (emulation). | At the discretion of the user |
The folder /system/app contains pre-installed system applications, the removal of which may disrupt the operation of the interface. At the same time, the folder /data/local/tmp is often used for temporary storage of files during flashing or debugging. The section /proc contains information about running processes in real time and does not take up disk space.
Particular attention should be paid to the section /boot. The system kernel and boot loader are located there. Damage to the files in this directory is guaranteed to cause the phone to stop turning on. In modern devices, this section is often protected by additional verification of signatures.
What is the /recovery section?
This is a separate mini-mode of the operating system, designed for recovery, resetting settings or installing updates. It is not used in everyday work, but is critical for repairs.
How to obtain superuser rights (Root)
For full access to the root directory, in most cases a procedure known as “rooting” is required. This is the process of gaining superuser rights, similar to administrator rights in Windows, but with much greater powers. Without these rights, you will only be able to view some system files, but not change them.
The most common way to obtain rights is to use the utility Magisk. It is embedded in the boot partition and allows you to manage root access, hiding it from banking applications and security systems. The Magisk installation process requires an unlocked Bootloader and a computer.
There are also one-button solutions, but their effectiveness on new versions of Android (11, 12, 13, 14) is extremely low due to enhanced security measures. Trying to use old rooting methods on new software may lead to device locking or data loss. Always check the compatibility of the method with your model and firmware version.
⚠️ Attention: Unlocking the bootloader and obtaining root access will void the manufacturer's warranty. In addition, some applications (banks, payment systems) may stop working on rooted devices.
☑️ Check before rooting
Working with files via ADB and command line
For those who prefer reliability to a graphical interface, work through ADB is the gold standard. After connecting the device to the PC and enabling USB debugging, you can use the command adb shell to enter the device shell. To obtain full rights, enter the command su.
Navigation is carried out using standard Linux commands. For example, cd /system will move you to the system folder, and ls -la will show a list of all files, including hidden ones. To edit files, you can use built-in console editors, such as vi or nanoif they are present in the firmware.
adb devicesadb shell
su
cd /system/etc
ls -la
mount -o rw,remount /system
To make changes, it needs to be remounted to read-write mode, as shown in the code example above. After completing all operations, it is strongly recommended to return the partition to its original state or simply reboot the device, since modern file systems may not save changes made to RAM.
Possible risks and precautions
Tampering with the root directory is always a balance between functionality and stability. The main danger lies in the human factor: one extra deleted comma in the configuration file can disrupt the operation of the entire system. System UI It may stop starting, the phone will go into an endless reboot (bootloop) or completely stop responding to commands.
Another risk is reduced security. Rooted apps have unlimited power over the device. Malware that gains these rights can steal all your data, including passwords and encryption keys, hide its presence and bypass antivirus software. Therefore, you can trust root access only to proven open source software.
It is also worth considering that over-the-air (OTA) system updates are often not installed on modified devices. You'll have to manually integrate updates or flash your device again, which takes time and skill. In some cases, protection SafetyNet or Play Integritymay work, blocking Netflix, Google Pay and banking applications.
Always have a method of restoring the device (TWRP, stock firmware, EDL mode) on hand before making changes to the root files.
What happens if you delete the /system folder?
Deleting the contents of this folder will result in the device being completely inoperable. The phone will not be able to boot into the operating system because all the basic components are there. It will be possible to restore operation only by flashing the device through a computer, provided that the bootloader is not blocked by the operator or manufacturer.
Is it possible to increase memory by deleting system files?
Theoretically, you can free up several hundred megabytes by deleting unnecessary system applications (bloatware). However, the actual performance gain will be minimal, and the risk of system disruption is very high. It is better to use tools to freeze applications than to completely remove them.
Where is the root directory on Samsung, Xiaomi or Huawei?
The location of the root directory (/) is the same on all Android devices, regardless of the brand. The only differences can be in the folder structure inside /system or /vendor, where manufacturers place their unique shells and applications. The path to the root always starts with a "/" character in the Linux file system.