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I've recently bought a new TDK 4 GB USB stick, but when I try to mount it (I'm runnning Ubuntu 12.04, but neither in Windows 7/8.1 it works) in various ways Gparted, Disk Utility, simply pluggin it into usb port, I receive this error: unrecognised disk label.

Using sudo parted /dev/sdc it gives the same error and with GParted I've successfully managed to understand that no partition exists (when attempting to create a new partition it does nothing).

Is it completely broken out, or have I any possibility to rescue this brand new USB?

Thanks in advance!

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  • It sounds like the disk is bogus, but check the output of dmesg for any more detailed errors after trying to format it.
    – psusi
    Mar 23, 2015 at 1:16
  • [ 1086.950660] usb 3-3: new high-speed USB device number 5 using xhci_hcd [ 1086.967193] usb 3-3: New USB device found, idVendor=0718, idProduct=0710 [ 1086.967208] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 1086.967217] usb 3-3: Product: TF10 [ 1086.967224] usb 3-3: Manufacturer: TDK LoR [ 1086.967231] usb 3-3: SerialNumber: 1227000000006790 [ 1086.968020] usb-storage 3-3:1.0: USB Mass Storage device detected [ 1086.968146] scsi7 : usb-storage 3-3:1.0
    – user381252
    Mar 23, 2015 at 8:56

2 Answers 2

Reset to default
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Using gparted, select your USB disk in the right top drop-down.

Please be careful, since the next step will remove any data in your USB stick.

After that, unmount any active partitions and go to Device > Create Partition Table.... Then select msdos and Apply.

Finally, create a new partition using the filesystem you want (usually FAT32) and Apply All Operations.

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  • after selecting "msods" Gparted does nothing! After operation there are no operations pending ...
    – user381252
    Mar 22, 2015 at 20:51
  • "e2label: Bad magic number in super-block while trying to open /dev/sdc Couldn't find valid filesystem superblock"
    – user381252
    Mar 22, 2015 at 20:57
  • @Foga Can you run sudo fdisk -l /dev/sdc and paste the output here?
    – Tiago Hillebrandt
    Mar 22, 2015 at 20:59
  • Disk /dev/sdc: 4009 MB, 4009754624 bytes 124 heads, 62 sectors/track, 1018 cylinders, total 7831552 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xe4991204 Disk /dev/sdc doesn't contain a valid partition table
    – user381252
    Mar 22, 2015 at 21:03
  • @Foga Open the gnome-disks (it is native in Ubuntu), select your USB device on left list, click on the gear icon on right top, then Format. Erase: Quick / Partitioning: MBR/DOS. After finish, it will display Free Space in Volumes. Click in the plus (+) icon, change type to FAT and click over Create.
    – Tiago Hillebrandt
    Mar 22, 2015 at 21:11
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Reading all the information above, I must conclude that your brand new USB stick is DOA (Dead on Arrival). Return it to the store and get a replacement. Print out this page as proof that even the über-geeks at Ask Ubuntu cannot get it to work and it is our informed opinion it's DOA.

Sorry to be the harbinger of bad news

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    – Fabby
    Mar 27, 2015 at 22:12

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