Failed to mount unknown filesystem type 'exfat'

Dual-Boot note

Important note, I run two drives in this computer, one is an NVME running Windows 11, the other is this Garuda SATA drive. But this was working fine after multiple Linux and Windows boot ups, so I don't think it would be Windows doing this.

I've run into an issue, I have an external harddrive that no longer is accessible.
When I try to open it I get the error popup (note the drive is called maxonedrive):

Mount Failed
Failed to mount "maxonedrive"
Error mounting /dev/sdb1 at /run/media/myusername/maxonedrive: unknown filesystem type 'exfat'

I ran the below commands to check if I had any exfat tools installed and it seems I do. This makes sense since the drive was working fine up until now.

$ pacman -Qs exfat
local/exfatprogs 1.1.3-1
    exFAT filesystem userspace utilities for the Linux Kernel exfat driver
$ pacman -Ss exfat
community/exfat-utils 1.3.0-2
    Utilities for exFAT file system
community/exfatprogs 1.1.3-1 [installed]
    exFAT filesystem userspace utilities for the Linux Kernel exfat driver

One minor note, I was using Deluge to torrent files to the external drive (didn't want to use up the boot drive's space). After seeding began, I noticed the torrent would stop seeding due to an error after every boot-up. I could always "Force Re-Check" and it would recognize the files and begin seeding again. Not sure if torrenting to an external drive can cause issues?

Is there any way I can diagnose this drive issue? It seems weird that it's saying exfat is unknown, after I've been using it for weeks. And I don't believe I've done anything strange lately, besides of course updates (via both the terminal command "update" and "pacman - Syu" command).

Thank you for any pointers. I didn't see any solutions online other than "install exfat-utils, you don't have it installed". But I know that can't be it, I have been using it.

System:
  Kernel: 5.15.31-1-lts arch: x86_64 bits: 64 compiler: gcc v: 11.2.0
    parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-lts
    root=UUID=ec1ce696-4eb1-42f7-9332-0ccfa85f4ce6 rw [email protected]
    quiet
    cryptdevice=UUID=f500966b-c394-41e4-b2da-7220122ca9a4:luks-f500966b-c394-41e4-b2da-7220122ca9a4
    root=/dev/mapper/luks-f500966b-c394-41e4-b2da-7220122ca9a4 quiet splash
    rd.udev.log_priority=3 vt.global_cursor_default=0
    resume=/dev/mapper/luks-f0a843d1-7899-477e-b871-ad7e44352f2b loglevel=3
  Desktop: Xfce v: 4.16.0 tk: Gtk v: 3.24.29 info: xfce4-panel wm: xfwm
    v: 4.16.1 vt: 7 dm: LightDM v: 1.30.0 Distro: Garuda Linux base: Arch Linux
Machine:
  Type: Mini-pc System: AZW product: SER v: N/A serial: <superuser required>
  Mobo: AZW model: SER serial: <superuser required>
    UEFI: American Megatrends v: SER106 date: 11/10/2021
Battery:
  Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard
    serial: <filter> charge: 55% (should be ignored) rechargeable: yes
    status: discharging
CPU:
  Info: model: AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx bits: 64
    type: MT MCP arch: Zen/Zen+ note: check family: 0x17 (23)
    model-id: 0x18 (24) stepping: 1 microcode: 0x8108109
  Topology: cpus: 1x cores: 4 tpc: 2 threads: 8 smt: enabled cache:
    L1: 384 KiB desc: d-4x32 KiB; i-4x64 KiB L2: 2 MiB desc: 4x512 KiB
    L3: 4 MiB desc: 1x4 MiB
  Speed (MHz): avg: 1478 high: 3108 min/max: 1400/2300 boost: enabled
    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 3108 2: 1192
    3: 1279 4: 1186 5: 1276 6: 1252 7: 1271 8: 1260 bogomips: 36728
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  Vulnerabilities:
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: spec_store_bypass
    mitigation: Speculative Store Bypass disabled via prctl and seccomp
  Type: spectre_v1
    mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2
    mitigation: Retpolines, IBPB: conditional, STIBP: disabled, RSB filling
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: AMD Picasso/Raven 2 [Radeon Vega Series / Radeon Mobile Series]
    driver: amdgpu v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 ports:
    active: HDMI-A-1 empty: DP-1,HDMI-A-2 bus-ID: 04:00.0 chip-ID: 1002:15d8
    class-ID: 0300
  Display: x11 server: X.Org v: 1.21.1.3 compositor: xfwm v: 4.16.1 driver:
    X: loaded: amdgpu unloaded: modesetting alternate: fbdev,vesa gpu: amdgpu
    display-ID: :0.0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x286mm (20.00x11.26")
    s-diag: 583mm (22.95")
  Monitor-1: HDMI-A-1 mapped: HDMI-A-0 model: LG (GoldStar) FULL HD
    serial: <filter> built: 2020 res: 1920x1080 hz: 75 dpi: 102 gamma: 1.2
    size: 480x270mm (18.9x10.63") diag: 551mm (21.7") ratio: 16:9 modes:
    max: 1920x1080 min: 720x400
  Message: Unable to show GL data. Required tool glxinfo missing.
Audio:
  Device-1: AMD Raven/Raven2/Fenghuang HDMI/DP Audio driver: snd_hda_intel
    v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 04:00.1
    chip-ID: 1002:15de class-ID: 0403
  Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor driver: snd_pci_acp3x
    v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 04:00.5
    chip-ID: 1022:15e2 class-ID: 0480
  Device-3: AMD Family 17h/19h HD Audio vendor: Conexant Systems
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 04:00.6 chip-ID: 1022:15e3 class-ID: 0403
  Device-4: Intel USB PnP Sound Device type: USB
    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 3-1:2 chip-ID: 8086:0808
    class-ID: 0300
  Sound Server-1: ALSA v: k5.15.31-1-lts running: yes
  Sound Server-2: sndio v: N/A running: no
  Sound Server-3: PulseAudio v: 15.0 running: no
  Sound Server-4: PipeWire v: 0.3.49 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: f000
    bus-ID: 02:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: eno1 state: down mac: <filter>
  Device-2: Intel Wireless 7265 driver: iwlwifi v: kernel pcie: gen: 1
    speed: 2.5 GT/s lanes: 1 bus-ID: 03:00.0 chip-ID: 8086:095a class-ID: 0280
  IF: wlp3s0 state: up mac: <filter>
Bluetooth:
  Device-1: Intel Bluetooth wireless interface type: USB driver: btusb v: 0.8
    bus-ID: 3-2:3 chip-ID: 8087:0a2a class-ID: e001
  Report: bt-adapter ID: hci0 rfk-id: 1 state: down
    bt-service: enabled,running rfk-block: hardware: no software: yes
    address: <filter>
Drives:
  Local Storage: total: 1013.51 GiB used: 465.98 GiB (46.0%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Kingston model: OM8PDP3256B-A01
    size: 238.47 GiB block-size: physical: 512 B logical: 512 B
    speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter> rev: EDFK0S03
    temp: 42.9 C scheme: GPT
  ID-2: /dev/sda maj-min: 8:0 vendor: SanDisk model: SDSSDH3 512G
    size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
    type: SSD serial: <filter> rev: 1000 scheme: GPT
  ID-3: /dev/sdb maj-min: 8:16 type: USB vendor: Utania model: OOS320G16M
    size: 298.09 GiB block-size: physical: 512 B logical: 512 B type: HDD
    rpm: 5400 serial: <filter> rev: 2210 scheme: MBR
Partition:
  ID-1: / raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 465.98 GiB (99.6%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0
    mapped: luks-f500966b-c394-41e4-b2da-7220122ca9a4
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 724 KiB (0.2%) fs: vfat dev: /dev/sda1 maj-min: 8:1
  ID-3: /home raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 465.98 GiB (99.6%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0
    mapped: luks-f500966b-c394-41e4-b2da-7220122ca9a4
  ID-4: /var/log raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 465.98 GiB (99.6%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0
    mapped: luks-f500966b-c394-41e4-b2da-7220122ca9a4
  ID-5: /var/tmp raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 465.98 GiB (99.6%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0
    mapped: luks-f500966b-c394-41e4-b2da-7220122ca9a4
Swap:
  Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default)
  ID-1: swap-1 type: zram size: 15.14 GiB used: 68.2 MiB (0.4%)
    priority: 100 dev: /dev/zram0
  ID-2: swap-2 type: partition size: 8.8 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/dm-1 maj-min: 254:1
    mapped: luks-f0a843d1-7899-477e-b871-ad7e44352f2b
Sensors:
  System Temperatures: cpu: N/A mobo: N/A gpu: amdgpu temp: 50.0 C
  Fan Speeds (RPM): N/A
Info:
  Processes: 335 Uptime: 34m wakeups: 4 Memory: 15.14 GiB
  used: 4.81 GiB (31.8%) Init: systemd v: 250 tool: systemctl Compilers:
  gcc: 11.2.0 clang: 13.0.1 Packages: pacman: 1873 lib: 529 Shell: Bash
  v: 5.1.16 running-in: xfce4-terminal inxi: 3.3.14
e[1;34mGaruda (2.6.1-1):e[0m
e[1;34m  System install date:e[0m     2022-03-21
e[1;34m  Last full system update:e[0m 2022-04-07 e[1;31m↻
e[1;34m  Is partially upgraded:  e[0m No
e[1;34m  Relevant software:      e[0m NetworkManager
e[1;34m  Windows dual boot:      e[0m Probably (Run as root to verify)
e[1;34m  Snapshots:              e[0m Snapper
e[1;34m  Failed units:           e[0m 

Try check exfat file system

2 Likes

Have you tried installing the exfat-utils one?

If trouble continues, please provide output of sudo mount -t exfat /dev/sdb1 /run/media/myusername/maxonedrive for further diagnosis.

4 Likes

I'm very sorry for my late response.

It is currently working, and don't know why (since this isn't just after reboot, I had restarted the system before). Maybe the Harddrive is just unreliable.

Sorry about this. Thank you for the suggestions.

1 Like

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