Create HFS+ Partition on Existing NTFS Drive
I have a 2TB hard drive which has been formatted to be NTFS. I have my Windows 10 machine backed up to it.
I also have a Mac which I would like to back up to it, but I do not want to delete the existing Windows data.
I have created a free space partition in windows using Computer Management -> Disk Management. I now see one Primary Partition which is 1120 GB, and a 732G Unallocated space.
How can I make this Unallocated space become an HFS+ partition?
This is a very simple do as you've already done most of the work.
All you need now, is a Partition Manager that support formatting HFS. Google for it or start with this list:
https://en.wikipedia.org/wiki/List_of_disk_partitioning_software
Some things off the top of my head:
MacDrive and TransMac. Both have limited time evaluation trials.
Live CD of GParted, has HFS support.
And there are several other Partition/ Disk Management tools out there that will do it.
PS: It may also be possible to do it via the native disk/ partition tools on the OS, but probably harder.
Here is another way:
- Shrink your existing NTFS external drive.
- Create a second unallocated partition.
- Name the volume (assign it a drive letter (
F:,G:, etc...)). - Format it (again as NTFS) using Disk Management in Windows 10.
- Connect the drive to the Mac and load Time Machine.
- Select that drive as the backup device and Time Machine will ask to use it and erase it. Of course, there are no files on it as it is just a new partition.
- Time Machine will automatically format it to HFS+ (macOS Extended, Journaled) to use as a backup device. All done.