To make an exact duplicate of a NTFS filesystem partition under Linux, you can use the dd command. dd is a utility that allows you to copy data from one location to another.
Here's an example of how you can use dd to make an exact duplicate of an NTFS partition:
First, identify the device name of the NTFS partition that you want to duplicate. You can use the fdisk -l command to list the available partitions on your system.
Unmount the NTFS partition if it is currently mounted. You can use the umount command to do this.
Use the dd command to copy the partition to a new file. The basic syntax for this is:
dd if=<source> of=<destination>
For example:
dd if=/dev/sda1 of=ntfs_partition.img
This will create a file called "ntfs_partition.img" that contains an exact copy of the NTFS partition at /dev/sda1.
dd command again. The basic syntax is the same, but you will need to specify the device name of the destination partition instead of a file name. For example:dd if=ntfs_partition.img of=/dev/sda2
This will restore the NTFS partition from the image file to the /dev/sda2 partition.
Keep in mind that this process will create an exact duplicate of the NTFS partition, including all data and filesystem structures. If you want to create a new, empty NTFS partition, you will need to use a different method.