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Modello A1419 / EMC 3070 / Metà 2017 / processori Core i5 3.4, 3.5 o 3.8 GHz o Core i7 Kaby Lake 4.2 GHz (id ImAC18,3) / Retina 5k display. Fai riferimento alle guide del modello più vecchio dell'iMac 27" Retina 5K display (fine 2014 & 2015), dato che il sistema è molto simile.

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Internall HDD not showing in HDD list-when restart says uninitialized

Hi there

I really have a big problem, I have an internal storage HDD 3TB which was fine until a couple of days before

At some point when I restarted my imac it disappeared and the disk utility announced me that a hardrive is uninitialized

I tried everything to remount the drive back but no success:

erase

first aid

reinstall OS

different recovery software

etc.

The disk utility list shows an internal drive ST3000DM001 Media 4.14 GB

and in the terminal there is a disk0 showing as a 4.1Gb

(I listed below the content )

I tried to erase / format this ST3000DM001 Media but I get the error:

"unable to write to the last block of the device

operation failed"

I am really at a loss, is there any chance to recover this HDD? I can't take it easily out, as the iMac has the LCD glued to the body :(

see below the available info

Thank you in advance for help!

--------------------------------------------------------------------------

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: *4.1 GB disk0

/dev/disk1 (internal):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme 121.3 GB disk1

1: EFI EFI 314.6 MB disk1s1

2: Apple_APFS Container disk2 121.0 GB disk1s2

/dev/disk2 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +121.0 GB disk2

Physical Store disk1s2

1: APFS Volume System 83.0 GB disk2s1

2: APFS Volume Preboot 47.7 MB disk2s2

3: APFS Volume Recovery 1.0 GB disk2s3

4: APFS Volume VM 2.1 GB disk2s4

Block Image

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Try erasing the the disk using Disk Utility and then select the Security Options box and do a secure erase. This will generally inspect every block and map out the bad ones in the directory and make the disk usable again.

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I tried, but it gives me an error

"unable to write to the last block of the device

operation failed"

Plus I don’t want to securely erase, will lose the data 🙁

da

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Sadly, you really don’t have much of a choice here. Reformatting the drive is your last hope. It’s possible the drive failed.

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I was afraid I would get this answer

I guess I need to take the HDD out and try to reconnect with a different cable and try recover data!?

da

@marinaxx - Just try reformatting using an external drive which is setup as a bootable drive running the same if not newer macOS version. If that fails then open the system up as at that point you more likely need a new drive.

da

@danj

I am running High Sierra

I will make a bootable drive with the latest OS and give it a try

If not I have no choice than to take the drive out and try a different approach

Thank you

da

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marina sarà eternamente grato.
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