bash-3.2# id
uid=0(root) gid=0(wheel) groups=0(wheel),1(daemon),2(kmem),3(sys),4(tty),5(operator),8(procview),9(procmod),12(everyone),20(staff),29(certusers),61(localaccounts),80(admin),402(com.apple.sharepoint.group.1),33(_appstore),98(_lpadmin),100(_lpoperator),204(_developer),395(com.apple.access_ftp),398(com.apple.access_screensharing),399(com.apple.access_ssh)
bash-3.2# cmod o+w mount_ntfs
bash: cmod: command not found
bash-3.2# chmod o+w mount_ntfs
chmod: Unable to change file mode on mount_ntfs: Operation not permitted
bash-3.2# sudo chmod o+w mount_ntfs
chmod: Unable to change file mode on mount_ntfs: Operation not permitted
bash-3.2# mv /sbin/mount_ntfs /sbin/mount_ntfs.orig
mv: rename /sbin/mount_ntfs to /sbin/mount_ntfs.orig: Operation not permitted
bash-3.2# sudo mv /sbin/mount_ntfs /sbin/mount_ntfs.orig
mv: rename /sbin/mount_ntfs to /sbin/mount_ntfs.orig: Operation not permitted