CentOS can not read or write ntfs format, so if you insert your hard disk into the computer, Centos will tell you “uable mount”.
The ntfs-3g is the solution of this problem. The ntfs-3g driver is an open source, GPL licensed, third generation Linux NTFS driver. It provides full read-write access to NTFS, excluding access to encrypted files, writing compressed files, changing file ownership, access right.
INSTALL
1.Download the latest rpmforge-release rpm from:http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-1.el6.rf.i686.rpm
you can use the command:
wget http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-1.el6.rf.i686.rpm
2.Install rpmforge-release rpm:
#rpm -Uvh rpmforge-release-0.5.2-1.el6.rf.i686.rpm
3.Install fuse-ntfs-3g rpm package:
#yum install fuse-ntfs-3g
After completed, you can try your hard disk again.