[SOLVED] exfat installed but "unknown filesystem" at mount time

English Install/Boot/Login
1

I guess the easiest way to explain this is to give the output of two commands:

**linux-lwli:~ #** mount -t exfat /dev/sdb1 /mnt/
mount: unknown filesystem type 'exfat'
**linux-lwli:~ #** rpm -qa | grep -i exfat
**exfat**-utils-1.1.1-1.1.x86_64
fuse-**exfat**-1.2.3-1.1.x86_64

What gives?

2

exfat is not a native Linux disk format.

Install support with the following command

zypper in exfat-utils

After that has completed, your mount command should work.

Edit: Looking at your post again, I see that you should have exfat-utils installed.
But, verify with the following command

zypper info exfat-utils

Also, although I don’t think it should be needed, but it wouldn’t hurt to run a system update with the following before trying to mount again

zypper up

TSU

3

I’m glad you came back with that last blurb - was about to say “hey!”

Anyhow, here’s the info you requested:

Information for package exfat-utils:
------------------------------------
Repository: Packman Repository
Name: exfat-utils
Version: 1.1.1-1.1
Arch: x86_64
Vendor: http://packman.links2linux.de
Installed: Yes
Status: up-to-date
Installed Size: 181.7 KiB
Summary: Tools for the exFAT file system implementation
Description:  
  This project aims to provide a full-featured exFAT file system
  implementation for GNU/Linux and other Unix-like systems as a FUSE
  module and a set of utilities.
4

Try

mount -t fuse -o subtype=exfat
5

Curiouser and curiouser.

As root:

**linux-lwli:~ #** mount -t fuse -o subtype=exfat /dev/sdb1 /mnt/
/bin/sh: /dev/sdb1: Permission denied

Edit: just to make sure, I wrote the filesystem on a fresh USB drive on the same computer and still can’t mount the other device. Permissions and such:

brw-rw---- 1 root disk 8, 17 Feb 29 18:57  /dev/sdb1
Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1        2048 62537727 62535680 29.8G  7 HPFS/NTFS/exFAT
/dev/sdb1: LABEL="Lexar" UUID="3FE3-7C73" TYPE="exfat" PTTYPE="dos" PARTUUID="7a71504b-01"
6

I have the same problem. I have several USB sticks and mSD cards (used in my dashcam and GoPro) formatted with exfat filesystem. Until last weekend it’s been working fine, I could (auto)mount them. As I recall some updates were installed by online update on the weekend and since then neither the device manager in plasma desktop, nor mount command can mount them, both gives “unknown filesystem type ‘exfat’” error. The only way I can mount them is using the below command:

mount.exfat /dev/sdXY /mnt
7

I’m not sure, but probably it helps to add “exfat” to the list of filesystems in “/etc/filesystems”.

Best regards

susejunky

8

This works. Which is kind of annoying - Dolphin fails to mount the devices.

I’m gonna dredge the bugzilla and see if it’s already there.

9

Checked, entries for exfat and exfat_fuse were already there. mount.exfat works. Bug…

10

Found the relevant bug. Turns out to be a pretty easy fix if you don’t want to wait for it to show up in updates. I’ve confirmed this works:

ln -s /usr/sbin/mount.exfat-fuse /sbin/mount.exfat