giorgos@giorgos-desktop:~$ sudo su [sudo] password for giorgos: root@giorgos-desktop:/home/giorgos# mount -o gid=6 /dev/sde1 /media/usb ntfs_attr_pread: ntfs_pread failed: Input/output error Error reading $Mft record(s): Input/output error ntfs_mft_record_read failed: Input/output error Failed to open inode: Input/output error Failed to mount '/dev/sde1': Input/output error NTFS is either inconsistent, or you have hardware faults, or you have 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 you have SoftRAID/FakeRAID then first you must activate it and mount a different device under the /dev/mapper/ directory, (e.g. /dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation for the details. root@giorgos-desktop:/home/giorgos#