- Mac disk utility partition greyed out external hard drive software#
- Mac disk utility partition greyed out external hard drive mac#
- Mac disk utility partition greyed out external hard drive windows#
Mac disk utility partition greyed out external hard drive mac#
Tags Adobe APFS Apple AppleScript Apple silicon backup Big Sur Blake bug Catalina Consolation Console diagnosis Disk Utility Doré El Capitan extended attributes Finder firmware Gatekeeper Gérôme HFS+ High Sierra history history of painting iCloud Impressionism iOS landscape LockRattler log logs M1 Mac Mac history macOS macOS 10.12 macOS 10.13 macOS 10.14 macOS 10. Updated from the original, which was first published in MacUser volume 28 issue 12, 2012. If nothing can access the drive properly, then sadly it has almost certainly gone west.
Mac disk utility partition greyed out external hard drive windows#
Sometimes reformatting a disk using a Windows system can help it mount so that you can initialise it again in Mac Extended format using Disk Utility. If Disk Utility still cannot access the drive, you could try other tools such as TechTool Pro, or dedicated repair utilities such as Drive Genius.
Open Disk Utility and see if it works again, to re-partition the drive into a single volume. Then leave them for a minute or longer before powering up the external drive, letting it run up to speed, and only then starting up your Mac. I think here is where I made a mistake: I thought maybe the disk somehow became unmounted, so I clicked 'Mount/Unmount.' That didn't help & the MacHD still didn't show up in target disk mode on the other Mac. Once your Mac has shut down, power the external drive down, perhaps by switching it off. When I started up the Mac in Recovery Mode Disk Utility, the MacHD was replaced by a greyed out disk called 'Untitled'. How can I restore it to normal function?Ī Shut your Mac down with the external drive still running if this fails because the disk cannot be unmounted, force shutdown by holding the power button. If you have backed up the data, you can go on with "y" - your disk partitions will be merged.Q In spite of being able to ‘see’ my 2 TB Seagate external drive in Disk Utility, its icon is greyed out, and I am unable to mount or eject it. Disk Utility is even accessible from Recovery Mode, so you can partition your Mac’s hard drive without having to create and load up any special bootable tools. If it can't because the disk has no resizable data format, it will give a warning message: The chosen disk does not support resizing.Ĭaution! If you enter "y", your data on will be deleted. There’s no need to hunt down paid partition managers or disk-management boot disks: your Mac includes a built-in partition manager and disk management tool known as Disk Utility. The first disk is the only one that diskutil tries to preserve the data for. If you want to use the "MacBackup3", you would then enter: diskutil mergePartitions JHFS+ MyMedia disk3s1 disk3s2 Step 3) Use the toggle buttons to unselect a data type you don’t want to restore.
Mac disk utility partition greyed out external hard drive software#
Step 2) Download the software Stellar Data Recovery Free Edition on your Mac. Please ensure that your external device shows up in the Disk Utility, even as a greyed-out device.
Merge the two disk partitions by "mergePartitions ". Step 1) Connect your external hard drive to Mac. In the IDENTIFIER column, get the disk identifiers for both disks, here: disk3s1 and disk3s2 This returns something like #: TYPE NAME SIZE IDENTIFIERĠ: FDisk_partition_scheme *320.1 GB disk3ġ: DOS_FAT_32 MULTIMEDIA 160.0 GB disk3s1Ģ: Apple_HFS TIMEMACHINE 160.0 GB disk3s2
Choose any of the two disk names, like: diskutil list MacBackup Get the disk identifier for both disks you want to merge by "diskutil list ".
To elaborate the answer by this is what you must do step-by-step:
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