Network storage NFS (Network File System allows you to use your Xiaomi Redmi 9T access files on NAS-It's convenient for a server or other device to be stored locally, and it's convenient for large media libraries, backups, or corporate data. MIUI supportive NFS "Out of the box – you will need manual adjustment.
Many users mistakenly believe that NFS requires root access or custom firmware, and in fact, it is enough to activate hidden Android features and use third-party applications. In this article, we will discuss three working methods of connecting (including the option without superuser rights), and also explain how to fix common errors such as mount: Operation not allowed or Permission denied.
⚠️ It's important: NFS It only works on the local network. VPN or alternative protocols (SMB, WebDAV. Also note that Xiaomi 9T Based on Qualcomm Snapdragon 662 can limit the data transfer speed over Wi-Fi 5 – for stable operation, we recommend a cable connection (USB-OTG + dermal).
1.Preparation: What You Need to Set Up NFS
Before you start setting up, make sure you have:
- 📱 Smartphone Xiaomi Redmi 9T s MIUI 12 or later (older versions may not have drivers) NFS).
- 🖥️ NAS-server, Linux computer or router with support NFS (for example, Synology, QNAP, or OpenMediaVault).
- 🔌 Stable connection to a single network (Wi-Fi or Ethernet) for tests, use a speed of at least 100 Mbps.
- 🔧 Mounting annex NFS: NFS Manager (for users without root) or Terminal Emulator (for manual commands).
If you connect to a Linux server, check that it has an nfs-kernel-server package installed and a folder exported, for example, /etc/exports should have a line:
/path/to/folder 192.168.1.0/24(rw,sync,no_subtree_check,no_root_squash)Where 192.168.1.0/24 is your local network subnet and rw allows you to write.
⚠️ Note: Some Xiaomi firmware Android kernel assembled without support NFS. You can check this out with the cat team. /proc/filesystems | grep nfs in Terminal Emulator. If no answer, you will need a custom core or alternative method (SMB).
2. Method 1: Connecting NFS without root (via NFS Manager)
The easiest way is to use the NFS Manager app from Google Play, which does not require superuser rights, but has limitations: it does not support automatic mounting when downloading and may not work stable on some firmware.
Step-by-step:
- Install NFS Manager and open it.
- Click + in the lower right corner and select Add NFS Share.
- Fill in the fields: Server IP: your NAS address (e.g. 192.168.1.100). Export Path: path to the exported folder (e.g. /mnt/nas/movies). Mount Point: local folder for mounting (e.g. /storage/emulated/0/NFS). Options: leave rw,soft,intr (allows write and interrupt in case of errors).
Save
Mount
NFS folder appeared in file manager | Files open without errors | You can create a test file in the folder | Copy speed is stable (check in Settings → Storage)
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If the installation failed, check:
- 🔒 Correct access rights on the server (exportfs command) -v Linux).
- 📡 Network stability (ping to the server must be) <10 miss).
- 🛡️ Lack of firewall blocking ports 2049/TCP and 2049/UDP.
💡
If NFS Manager can’t see the server, try manually specifying the port in the format server_ip:port (for example, 192.168.1.100:2049).
Method 2: Manual mounting through Terminal Emulator (for experienced)
This method requires knowledge of Linux commands, but gives more control, suitable for users with an unlocked bootloader or custom firmware (for example, LineageOS).
Instructions:
- Install Terminal Emulator.
- Create a folder for mounting: mkdir /storage/emulated/0/NFS_Mount
- mount (replace the parameters with your own): mount -t nfs -o rw,soft,intr,rsize=8192,wsize=8192 192.168.1.100:/mnt/nas/folder /storage/emulated/0/NFS_Mount rsize/wsize=8192 — Read/write block size (increases speed). soft - allows you to interrupt the operation when hanging.
Critical detail: on some Xiaomi 9T firmware, the path to internal storage may be different. Check it with df -h and look for the line with /storage/emulated/0.
| Mistake. | Reason. | Decision |
|---|---|---|
| mount: Operation not permitted | There is no NFS support in the kernel | Install a custom core or use an SMB |
| Permission denied | Incorrect rights on the server | Check Exports and Chmod 777 on the folder |
| Network is unreachable | Network connectivity problems | Check it out. IP-Addresses and routing (ping, netstat) |
| Stale file handle | The server restarted or changed the export | Remove the folder (umount + mount) |
How to make automatic mounting when loading?
Method 3: Alternatively, NFS via Magisk (for root users)
If you have root access, the most reliable way to install the NFS for Android module is through Magisk, which adds full kernel support.
Steps:
- Install the NFS for Android module via Magisk Manager.
- Reset the device.
- Check availability of NFS: ls /dev/block | grep nfs
- Mount folders through Terminal Emulator (as in Method 2) or NFS Manager.