Formatting external ssd for mac

Formatting an external hard drive for my … - Apple Community

Important note: If you have useful files stored on the external drive, be sure to copy or transfer them to another safe place prior to formatting. The operation will erase all data and your files will be gone for good. You could use a recovery program like Data Rescue to retrieve them, but the odds of recovery vary. Pro tip: If your external drive has a large volume, like mine — a 2TB Seagate Expansion.


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I highly recommend you also create multiple partitions. When I opened it, the default content was all there. It showed this format:.

How to Partition an External Hard Drive on Mac

What is NTFS? The tutorial and screenshots below are based on macOS Sierra They might be different if your Mac has a different version. Make sure your drive is connected. Select the one shown below.

How to Format an External Drive for Mac Compatibility

Learn more about the differences between these file systems from this thread. You can also check to see if the format was successful. Now your external drive has been formatted to be fully compatible with Apple MacOS, and you can edit, read, and write files to it as you want.

Open the Disk Utility app and highlight your external hard drive.


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If you select the one below it, the Partition option will be greyed out and become unclickable. Located on the left is a big blue circle with the name of your external drive together with its volume size. These steps in Terminal did the trick, thanks. So thank you.


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Hi, Charles. The best way to get help with this issue would be to reach out to our tech support team: Hi Charles. Did the tech support team help you? It happened to me also disk not seen in Diskutil list on the terminal … but I rebooted the mac again and start from the beginning and then it showed up in Disk Utility it was not the first time. But just reboot and after a few time it should detect it. I am sorry to hear about the issues Guilherme.

SMC reset: If the issue persists and you bought the drive from us please contact our support team. This article really helped! At that point I knew from your article that formatting the drive and restoring from a TimeMachine backup would be fairly easy. Or will it not give you an option of installing High Sierra?

If the computer was not upgraded to High Sierra before hand the internet recovery will be for an older OS.

Why to erase a disk

Is it at all possible to upgrade to high sierra if you were not already upgraded to it before installing the new SSD? OWC Ben M. B If the SSD is not showing up Terminal sould be used to format the drive, which is outlined in the remaining steps. Please read the notes below before proceeding: In Terminal type the following command and hit the Return key: Skip to main content. G-Technology 3. Related Articles.

How to erase a disk for Mac

Buying Guide. Top Ten Laptops of the Year, Gift Guide for the Techy Tot. See In Sync. No, Not That One. Items discussed in article Pre-Format: Desktop Solid-State Drives. USB Flash Drives. Dave B. Reply Reply. Craig B.

How to Format External Hard Drive on Mac - compatible with Windows, Mac, Time Machine

Ted H. I run Linux and use ext4. Too bad you did not mention ext4.