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I have this USB drive that doesn't seem to be detected neither on lsblk or fdisk. Here are some outputs:

Dmesg:

[93812.546850] usb 2-1.2: new high-speed USB device number 33 using ehci-pci
[93812.631628] usb-storage 2-1.2:1.0: USB Mass Storage device detected
[93812.632314] scsi host18: usb-storage 2-1.2:1.0

udevadm:

UDEV  [93905.859931] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/host20/target20:0:0/20:0:0:0/block/sdb (block)
UDEV  [93905.878766] change   /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/host20/target20:0:0/20:0:0:0/block/sdb (block)

fdisk:

$ sudo fdisk -l /dev/sdb
fdisk: cannot open /dev/sdb: No medium found

mount:

sudo mount /dev/sdb1 /mnt/usb
mount: special device /dev/sdb1 does not exist

journalctl:

mtp-probe[28286]: bus: 2, device: 39 was not an MTP device

Any ideas on what the issue might be and how should I fix it?

closed as unclear what you're asking by jasonwryan, Stephen Rauch, GAD3R, jimmij, taliezin Dec 21 '17 at 7:51

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Why do you say it's not recognized? It seems to have been attached as /dev/sdb. – terdon Dec 9 '15 at 16:10
  • Thought so myself but then when I try to mount it I get "no medium found on /dev/sdb" – kolpo Dec 9 '15 at 16:13
  • Then please edit your question and include the mount command you tried and the error message. Also show us the output of sudo fdisk -l /dev/sdb. Are there any partitions on the drive? – terdon Dec 9 '15 at 16:14
  • Done. Yeah there is a partition on the drive, last I checked on a windows pc I was able to open it. – kolpo Dec 9 '15 at 16:20
  • Thanks for the edit. Please also show the mount command and its error so we have everything included in the question. Oh, please don't add "edit" when you edit, questions should stand alone, there's no need to highlight edits here. – terdon Dec 9 '15 at 16:25
2

"No medium found" makes me think the drive might be failing its internal diagnostics and presenting itself as a "drive with no disk inserted" as a way to indicate a fault.

Try running:

sudo smartctl -x /dev/sdb

SMART diagnostics don't always work with USB drives, but it's worth a try.

You might also try unplugging & replugging the USB drive several times: if the drive health is borderline, you might get lucky and the drive might successfully start up eventually. If that happens, the first thing to do is to backup anything valuable that you might have on that drive.

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