Hello, I just got 2 Seagate Expansion Desktop 16TB drives and neither shows up in the Disk Utility menu on my Mac Pro 2019 (Catalina). They do show up on my macbook (Catalina).
Tried several different USB ports but none work.
Mac Pro
Great. Now you have access to the Physical device.
Next step is to use Disk Utility to ERASE it, (if you have not already down so) and it will become MacOS native and show up under all circumstances, no added Driver required.
Great. Now you have access to the Physical device.
Next step is to use Disk Utility to ERASE it, (if you have not already down so) and it will become MacOS native and show up under all circumstances, no added Driver required.
that is a Bad Idea®
what you just did is allow the drive to stay formatted Windows New Technology File System (NTFS), with Mac drives simulated inside NTFS.
The reason this is a bad Idea® is that drive as it is now will not mount after a disaster or under Recovery mode (because the driver does not load in recovery. It now REQUIRES the NTFS driver, else it is not recognized.
What you want to do is completely erase the entire DEVICE, by its Immutable Device-name, in Disk Utility. If you can not see it by its device-name, use the tiny drop down menu in the upper left corner of Disk Utility to "show all devices".
If erased to a native MacOS drive, it will be much more readily available under all conditions.
Thanks Grant, had to install NTFS to make them appear in Disk utility, then I formatted them in MAC OS Extended (Journaled)
Your display shows the View-by-Volume view.
I stand by what I wrote above.
You need to use View By Device. looks like this:
Fixed it but had to fork out $20 for NTFS for Mac :-(
Thanks Grant!
Seagate Expansion Desktop 16TB not showing up.
