View Full Version : Cannot access to USB or unmount it

December 30th, 2012, 08:04 PM
Hello. I've seen a few posts about not being able to see USB.

I can also see it on computer and gparted.

lsusb shows me the device:
[code]Bus 001 Device 013: ID 0930:6545 Toshiba Corp. Kingston DataTraveler 102 Flash Drive / HEMA Flash Drive 2 GB / PNY Attache 4GB Stick[/usb]

However, I cannot unmount it or access to it. And besides that, it is a 8GB device. Apparently, lsusb recognizes it as a 2 or 4 GB stick (I do not understand what is HEMA or PNY, Google results only taught me that PNY is a memory manufacturer but nothing relevant about HEMA). gparted recognizes it fine (7.46 GiB).

I cannot just go ahead and format it as it was lent to me and has files that do not belong to me. So, I would like to use it after I backup files in it for trying LiveCDs of some linux-based OSs I have downloaded.

BTW, I do not want to install wine or anything related to Bill Gates. =P

Any help would be highly appreciated.

Happy holidays. =)

December 30th, 2012, 08:06 PM
sudo fdisk -l
sudo parted -l

December 30th, 2012, 08:12 PM
In order to get a list of plugged in disks, execute the following command.

sudo fdisk -lOnce you've done that, it should be fairly easy to identify the memory stick. If you can't identify it, post the output in the thread.

sudo mount /dev/sdx ~/dir/usb/Use the command mount in order to mount the memory stick. Change /dev/sdx and ~/dir/usb accordingly.

Then, just enter the directory you specified.


I just noticed you wanted to unmount it. Just use umount instead.

sudo umount /dev/sdx

December 30th, 2012, 08:28 PM
Ok, so I did:

sudo mkdir /media/usb


sudo mount /dev/sdb1 /media/usb/

Works great. Thank you and happy new year both of you!