I bought a Seagate Expansion 2TB External Hard disk to use among cross platform O.S but before my use I did not bother to do any settings or mount(if there was any or necessary) and I plugged it in to my laptop which has Ubuntu 13.10 in it. It worked fine when I did the transfer from my laptop to the external hard drive(seagate 2 t.b) but suddenly it shows me an error message(screen shot below). In the launcher the Icon appears but unable to perform any task.What do I do please suggest? I have already transferred my entire files in it, don't wanna lose it. And also How to do the partition so that it can be use for Other O.S as well?I am also a newbie please be detail in explaining. Thanks in advance.![Can't post images so I'm listing the errors:

Error mounting /dev/sdb1 at /media/koyu/Seagate Expansion Drive: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sdb1" "/media/koyu/Seagate Expansion Drive"' exited with non-zero exit status 13: $MFTMirr does not match $MFT (record 0).

Failed to mount '/dev/sdb1': Input/output error

NTFS is either inconsistent, or there is a hardware fault, or it's a

SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows

then reboot into Windows twice. The usage of the /f parameter is very

important! If the device is a SoftRAID/FakeRAID then first activate

it and mount a different device under the /dev/mapper/ directory, (e.g.

/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation

for more details.