seagate external hard drive not showing up mac

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Avoid Master Boot Record, which Intel Macs can't boot from. Reformat the drive, using the GUID Partition Table (GPT) as the low-level partition table format.If you want something that both machines / OSes can read a write, and that can act as an emergency boot drive for either machine, do this:

Seagate external hard drive not showing up mac software#

Using additional software like this will probably create a performance hit, but how noticeable it is depends on your usage pattern. You should choose the filesystem that you plan on using most frequently so that it is as fast as possible and then reformat the disk accordingly. On the Mac, this can be accomplished using add-ons related to the MacFuse project.

Look at additional software which will allow for either NTFS or HFS+ to be read on OS X and Windows respectively. This could be used to move data between the Mac and the Windows machine, but would suffer from all the same FAT32 issues mentioned above. In addition to limitation to file sizes < 4 GB, you also lose a lot of nice features on HFS+ such as permissions and journalling.Ĭreate a FAT32 partition on the disk along side the existing HFS+ partition. Reformat the disk to FAT32, which ( as suggested by Michael Sturm) is the lowest common denominator in file systems between OS X and Windows. This file system type is not natively supported by Windows, which is why the disk will not mount when you plug it into your laptop.

Seagate external hard drive not showing up mac mac os#

If it is Mac OS Extended or a something similar then your disk is using the HFS+ file system, which is the default for OS X. the name you see in your file tree when the disk mounts under OS X) what do you see for the Format at the bottom of the window? Please see the basic troubleshooter, USB Troubleshooter article.If you open the Disk Utility application on your Mac with the disk connected, you should be able to see it in the list of disks on the left hand column of the Disk Utility window. NOTE: If installing Toolkit does not resolve your issue, then it may not be related to security.

Open Finder and confirm the volume is accessible.

Make sure the Seagate Toolkit app is installed on your computer.

Mac users may also see the following operating system message when connecting One Touch with Hub:Ĭlick Ignore and use Seagate Toolkit to unlock the drive. If you've enabled Seagate Secure for a high-capacity (12 TB or higher) One Touch with Hub and the drive is currently locked, your operating system will display the following drive status:ĭisk Management will show the disk status as Not initialised.ĭisk Utility will show the disk status as Uninitialised. Issue: One Touch with Hub appears to be uninitialised Please see the basic troubleshooter, USB Troubleshooter article. NOTE: If installing Toolkit does not resolve your issue, then it may not be related to security.

Open File Explorer or Finder and confirm One Touch with Hub appears in the list.

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If it's not, go to to download the software.

Make sure the Seagate Toolkit app is installed on your computer.

If you've enabled Seagate Secure for a high-capacity (12 TB or higher) One Touch with Hub and the drive is currently locked, the drive will not appear in File Explorer or Finder. Issue: One Touch with Hub is not listed in Explorer or Finder