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Modèle A1419 / Fin 2012 / Processeur 2.9 & 3.2 GHz Core i5 ou 3.4 GHz Core i7, ID iMac13,2

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Disk Utility Erase of new SDD HD fails with Permission Denied error.

I’m replacing my iMac 1Tb HD with a Critical 1 Tb SDD HD that I got from IFIXIT. Need to initialized the new SDD HD for cloning using Disk Utility in macOS Mojave. Followed directions on IFIXIT video on YouTube (https://youtu.be/saz0-c-218E) with no luck. (The YouTube video was released when the macOS was High Sierra. )

Disk Utility sees the new SDD HD, but Disk Utility/Ease fails. Yields: “Unmounting disk. POSIX Reports: The operation couldn’t be completed. Permission denied. Operation failed.”

I ran Disk Utility/First Aid to verify that the new SDD was operational. Yields:

“Running First Aid on “SuperDuper!” (disk2s1)

Repairing file system.

Volume is already unmounted.

Performing fsck_hfs -fy -x /dev/rdisk2s1

Checking non-journaled HFS Plus Volume.

Checking extents overflow file.

Checking catalog file.

Checking multi-linked files.

Checking catalog hierarchy.

Checking extended attributes file.

Checking volume bitmap.

Checking volume information.

The volume SuperDuper! appears to be OK.

File system check exit code is 0.

Restoring the original state found as unmounted.”

The new SDD HD looks good.

I suspect this is a Mojave issue, but several hours of searching in the Internet has produced no solutions. Can you help?

Répondre à cette question J'ai le même problème

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SOLVED…

The instructional video said to plug the new SDD HD into the USB port and run Disk Utility/Erase. This would not work for me. I restarted the computer with the new SDD HD plugged in to the USB port. At start up, I got a pop-up message about initializing the new hardware. I clicked OKAY and Disk Utility popped up. I was able to Erase and initialize the the new SDD HD. Then I used SuperDuper to clone the Mac HD.

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Almost! Your new SSD won't have the hidden recovery partition.

Cloning apps are so passé! I setup hundreds of Mac's each year and I don't use them! All they do is make more of a mess than helpful. Between the drive structures not be laid down properly, Apple also has moved to a newer file system APFS from HFS+ which most cloning apps can't handle.

It's just easier to use what Apple gives you and besides any error within a file will be caught and fixed or alert you its bad. Just use Disk Utility, the OS installer and Migration Assistant Apps.

par

Do what Dan said!

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Dan, mayer,

Thanks for your input. Your solution seems to provide capabilities that mine does not have. I haven’t done this before. Can you direct me to a website or to a YouTube video that will walk me through your process?

Thanks

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All I do is create a bootable OS installer USB thumb drive following one of these setups:

● How to create a bootable macOS Sierra installer drive for SATA based Mac's

● How to create a bootable macOS Mojave installer drive for PCIe/NVMe based Mac's.

Boot up under the USB Thumb drive, launch Disk Utility to prep the drive HFS+ for SATA drives APFS for PCIe/NVMe drives. Run the OS installer, then at the end of the OS install process plug in the external drive with the users data that needs to be re-installed and run the last part of the installer were it asks if you have data to migrate. Or, you can do it later after upgrading the OS and testing as needed running the Migration Assistant app from the Utilities Folder.

Its that simple!

Note: I try not to install High Sierra as it has issues. Mojave won't let you keep your drive with HFS+ so you can encounter issues with older disk recovery tools and of course you can't boot up under HFS+ externally to gain access to your APFS drive.

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Mark Frank sera éternellement reconnaissant.
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