According to the man page:
mkntfs is used to create an NTFS file system on a device (usually a disk partition) or file.
The problem is that when I give it a pre-created 64GB file as an argument it wants a device:
] mkntfs share1.dat # share1.dat is a pre-created 64 GB file share1.dat is not a block device. Refusing to make a filesystem here!
How do I get it to accept the share1.dat file as a file and create an NTFS filesystem on this file that I can later mount and share?