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Manuale Utente (Inglese)

exFAT file system support

Starting with KeeneticOS 3.5exFAT file system support has been implemented for models that support USB drives.


exFAT is not well suited to Linux operating systems like the KeeneticOS router operating system. This filesystem is not journaled, so any failure could result in data loss. Windows OS works reliably with this filesystem due to data caching, but Linux does not. In addition, when downloading a large torrent file, exFAT always uses preallocation, which means that space for the entire file is allocated at once. If the file is large enough, it takes considerable time. This can lead to slowdowns in the torrent client's web interface after adding a download job.

We recommend using the exFAT file system only on USB flash drives and not using it for torrents.

The 'exFAT filesystem' component must be installed on your Keenetic router to support USB drives with the exFAT file system. This can be done in the web interface on the 'General system settings' page, in the 'Updates and component options' by clicking on 'Component options'.


After installing the component, connect the exFAT drive to the Keenetic router's USB port.

This example shows the connection of an exFAT formatted flash drive.


The following messages will appear in the router's system log when a USB drive is connected:

kernel   usb 1-1: new high-speed USB device number 3 using xhci-mtk
kernel   usb 1-1: New USB device found, idVendor=13fe, idProduct=4300
kernel   usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel   usb 1-1: Product: USB DISK 2.0
kernel   usb 1-1: Manufacturer: Wilk
kernel   usb 1-1: SerialNumber: 071997B59F2AD629
kernel   usb-storage 1-1:1.0: USB Mass Storage device detected
kernel   scsi host0: usb-storage 1-1:1.0
kernel   scsi 0:0:0:0: Direct-Access Wilk USB DISK 2.0 PMAP PQ: 0 ANSI: 6
kernel   sd 0:0:0:0: Attached scsi generic sg0 type 0
kernel   sd 0:0:0:0: [sda] 15151104 512-byte logical blocks: (7.76 GB/7.22 GiB)
kernel   sd 0:0:0:0: [sda] Write Protect is off
kernel   sd 0:0:0:0: [sda] Mode Sense: 23 00 00 00
kernel   sd 0:0:0:0: [sda] No Caching mode page found
kernel   sd 0:0:0:0: [sda] Assuming drive cache: write through
kernel   sda: sda1
kernel   sd 0:0:0:0: [sda] Attached SCSI removable disk
ndm      Storage::Manager: created "Media0", port 2.
ndm      Storage::Partition: exfat "C8AC-F4B9:": filesystem initialized.
kernel   exFAT-fs (sda1[8:1]): trying to mount...
kernel   exFAT-fs (sda1[8:1]): utf8 enabled, "iocharset=iso8859-1" is recommended
kernel   exFAT-fs (sda1[8:1]): set logical sector size : 512
kernel   exFAT-fs (sda1[8:1]): (bps : 512, spc : 64, data start : 4096, aligned)
kernel   exFAT-fs (sda1[8:1]): detected volume size : 7571520 KB (disk : 7575552 KB, part : 7571520 KB)
kernel   exFAT-fs (sda1[8:1]): mounted successfully!
ndm      Storage::Manager: "Media0": registered partition "C8AC-F4B9:"