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I want to partition my new Samsung USB-c SSD. I have erased and reformatted the drive as Mac OS extended journal but the partition option remains greyed out. I'm running Mojave on a MacBook Air, has anyone got any advice please.
If you erased the drive with Disk Utility, then the drive is ready to be used as it would have created a single partition for use. If you want to add more partitions, then you need to click the "View" drop down list just above the left pane in Disk Utility and select "Show all devices". Then select the physical drive in the left pane. See if it allows you to create another partition.
If you erased the drive with Disk Utility, then the drive is ready to be used as it would have created a single partition for use. If you want to add more partitions, then you need to click the "View" drop down list just above the left pane in Disk Utility and select "Show all devices". Then select the physical drive in the left pane. See if it allows you to create another partition.
Does formatting it to APFS work?
Can't create partition on External Drive
