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I've been trying to find a USB Pen-drive I've plugged but its not registering so when I try to manually mount it I get:-

:~$ sudo fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track,  
    38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512  
    bytes   Sector size (logical/physical): 512 bytes / 4096 bytes I/O size  
    (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00055795

       Device Boot      Start         End      Blocks   Id  System  
    /dev/sda1   *        2048      499711      248832   83  Linux  
    /dev/sda2          501758   625141759   312320001    5  Extended  
        Partition 2 does not start on physical sector boundary.  
    /dev/sda5      501760   625141759   312320000   83  Linux

Disk /dev/mapper/sda5_crypt: 319.8 GB, 319813582848 bytes 255 heads, 63 sectors/track,  
    38881 cylinders, total 624635904 sectors Units = sectors of 1 * 512 = 512 bytes 
    Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal):  
    4096 bytes / 4096 bytes Disk identifier: 0x00000000

Disk /dev/mapper/sda5_crypt doesn't contain a valid partition table

Disk /dev/mapper/xubuntu-root: 318.7 GB, 318737743872 bytes 255 heads, 63 sectors/track,  
    38750 cylinders, total 622534656 sectors Units = sectors of 1 * 512 = 512 bytes  
    Sector size (logical/physical): 512 bytes / 4096 bytes I/O size         (minimum/optimal):  
    4096 bytes / 4096 bytes Disk identifier: 0x00000000

Disk /dev/mapper/xubuntu-root doesn't contain a valid partition table

Disk /dev/mapper/xubuntu-swap_1: 1056 MB, 1056964608 bytes 255 heads, 63 sectors/track,  
    128 cylinders, total 2064384 sectors Units = sectors of 1 * 512 = 512 bytes  
    Sector size (logical/physical): 512 bytes / 4096 bytes I/O size  (minimum/optimal):  
    4096 bytes / 4096 bytes Disk identifier: 0x00000000

Disk /dev/mapper/xubuntu-swap_1 doesn't contain a valid partition table

Disk /dev/mapper/cryptswap1: 1056 MB, 1056964608 bytes 255 heads, 63 sectors/track,  
    128 cylinders, total 2064384 sectors Units = sectors of 1 * 512 = 512 bytes  
    Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal):  
4096 bytes / 4096 bytes Disk identifier: 0x5a9d6c78

Disk /dev/mapper/cryptswap1 doesn't contain a valid partition table

Is there anyway to solve it so I can find the USB thats plugged in and mount it? If its any help its a Garmin ANT+ USB Stick and Im running 12.10. Ill give more details if needed but still a bit of a newbie to Linux.

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Is there an LED on the pendrive that indicates that it is being read when you plug it in? It looks like it would be found as /dev/sdb if it was being recognised. USB can be problematic at times, try a different USB port and get rid of any cables or USB hubs if you are using them. – fabricator4 Jan 6 at 13:24
No but it does work on a Windows XP laptop my friend has. Ive tried all USB ports but the same problem. There werent any other in the USB's in the laptop at the time. Get the same results from sudo fdisk -l aswell. – Mackay508 Jan 6 at 13:39

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