I've just installed a new harddisk in my desktop for data storage, I want to format it with NTFS*. I first tried disk utility and gparted to format the volume, but using both I get:
"Filesystem not clean"
and
"Device is mounted and no online capability in fsck tool for file system"
How can I create a 3TB NTFS partition?
* I want it to be usable across multiple platforms in the future, so this seems sensible, but perhaps it is not the best choice...