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Questions tagged [hard-drive]

A hard drive is a device for permanent or long-term storage in computers.

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Missing partition won't let me boot, resize or modify it

Hi setting up an iMac I have salvaged, initially when I was erasing the partitions the iMac process dropped out and has left me in a right pickle. Initially it was a fusion drive with Mac OS, ...
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Has Apple finally included APFS support for traditional hard drives in the latest update for macOS 10.13.1?

macOS High Sierra comes with a new file system APFS, now according to official notes APFS for now only supports modern SSDs. My Mac runs on a traditional rotational hard drive and according to Apple ...
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2answers
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can i repair a failing disk on macbook pro for free?

My macbook pro early 2011 says its drive is failing its S.M.A.R.T. test. It said to repair disk in recovery mode. I've attempted it twice. It doesn't seem to change the situation. Could the ...
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I turned my iMac on, but I only see a grey blinking question mark folder

I bought a 2011 21.5" iMac in a garage sale. I pressed Command + R. Once I'm in the macOS Utility folder, I don't see the Macintosh HD. Now, I went back to macOS Utility and tried to re-install macOS ...
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1answer
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MacBookPro 2015 not booting from a copy of the disk of my old MacBookPro mid 2012

I have a MacBookPro 13'' mid 2012, 2.9 GHz, which I have given to my partner, as I bought a second-hand MacBook Pro 2015 (beginning of 2015, 3.1 Ghz Intel core i7) Before giving the MBP mid 2012 to ...
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Hard Disk issue after uninstalling virtualbox

I have a Macbook Air 2015 with High Sierra. A couple of weeks ago I installed and used a VM with virtualbox. Since I deleted virtualbox I have been unable to use the disk storage that I had devoted ...
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External Hard drive not mounting help?

I have a Western Digital Mybook Studio Edition II external hard drive, that is configured to Mac OS. It is set up in RAID 1 format. I use this hard drive daily. Yesterday when I went to use it. On ...
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What is the physical size of the SATA hard disk inside the MacBook Pro 15 inches from early 2011?

I have a MacBook Pro 15 inches from early 2011 with a 750 GB hard disk. Since my graphics card is broken and its rather difficult to find a Mac to connect to per FireWire (and Thunderbolt cables are ...
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1answer
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Does the “Put hard disks to sleep when possible.” option in macOS have any affect on SSD drives?

So, I completely understand the value of putting a hard disk (specifically) to sleep in some cases especially in the pre-SSD days of the past. It can save power, lower noise and such. But in the case ...
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0answers
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HFS external drive aways mount read-only

I am having a problem with an external HFS+ USB drive on a MacBook Pro running High Sierra: When I plug the drive into the computer, it gets automatically mounted as read-only. I have to manually ...
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How do I mount a IDE disk connected with USB?

So I bought a USB device that I connect different HDD to. IDE and SATA. It has a built in molex power adepter. The device works when I'm connecting SATA devices. Photorec works like a charm on SATA ...
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Does this look good to you? (hard drive issues after I installed Mojave)

I need your help... I'm not sure what could have happened. Before I proceeded to install Mojave from a USB, I deleted (using Disk Utility) the old partition (El Capitan) from my Mac mini and then ran ...
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Fixing failed Bootcamp partition using Diskutils

I tried to create a bootcamp partition using the Bootcamp assistant, however when it should have booted into Windows to continue the installation, it failed and ended up taking the majority (>40GB) ...
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7 views

Can't mount RAID 0, disks and RAID are online

I had a RAID0 configuration with Mojave in it, tried to update to 10.14.1 and the installation complained with a message about "bless" I installed a fresh MacOSX to an external usb and boot from it, ...
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1answer
30 views

135GB of Hidden Space + Snapshot Metadata Tree Invalid error in Disk First Aid

I have a serious problem with "Hidden Space" eating up my hard drive. I'm running High Sierra on a mid-2013 MacBook Air "Core i7" with a 500gb ssd. The last few weeks, something has to been ...
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External Hard Drive Won't Mount (weird case)

Background I tried using the Disk Creator program to create a bootable flash drive out of my external hard drive. When I was creating this installer, I got an error. It was at this point my external ...
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1answer
27 views

Formatted an NTFS partition to Mac extended Journaled by mistake

I was creating a bootable Mojave usb for a friend on my Mac and by mistake instead of formatting the USB drive I formatted an NTFS partition on an internal disk to macOS Extended (Journaled). The ...
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Target Disk Mode MacBook Pro Early 2011 to Windows laptop

A few days ago the graphics card of my MacBook Pro (early 2011) stopped to work. After booting the MacBook the only thing you can see is a grey screen. Starting in recovery mode also doesn‘t work (...
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Recovery Volume mounted in `/Volumes` after checking for updates

From my understanding, with the new APFS system for macOS, the Recovery volume mounts itself briefly when it checks for updates; however the Recovery Volume on my MacBook Air is still mounted in /...
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OS X disk space recovery after corrupted Bootcamp uninstall

So, I've spent many hours trying to work an issue out with missing disk space after "uninstalling" Bootcamp on my c. 2014 500GB Macbook Air. I've consulted many of the posts on SE, some of which ...
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Hard-Drive Storage size issues after partition Disk Utility

I wanted to create a partition on my iMac for Windows to be able to play Windows games. I have used Disk Utility to create a 20GB partition on my 1,12TB Fusion drive. This caused a problem on my ...
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Logs for accessing mac hard drive in target mode

I left my macbook air laptop in apple centre for 4 hours yesterday. My laptop had important files on it and I want to know whether they have accessed / copied any of the files using either target mode ...
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Mac running slow on specific user. A lot of stuck processes found in top

SPEC I'm running Macbook Pro 13 inch mid 2012. i5 2.5GHz with 8G memory. Mac OS on the SSD and home path of the user account is at the other HDD. OS: Mojave v10.14 (Just updated. This problem has ...
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1answer
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What are stored on the “KG” drive?

Last time my Mac had some startup problems and I went to the Genius Bar for a clean OS installation. The technician took out a hard drive called “KG” and booted my Mac from a recovery partition on it. ...
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1answer
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How to repair Raid 0 Via Terminal

I have 2 @ 4TB drives in an 8tb Raid 0 stripe enclosure that has become corrupted. I have tried to repair the volume via, disk utility, terminal and single user mode with no luck. All 3rd party ...
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ExFAT does not support resizing - how can I partition it in order to use TimeMachine backup?

I have a 4TB external drive formatted as ExFAT file system with single partition, and I've already stored approximately about 800GB of files on it, and I decided to create a partition on this drive to ...
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1answer
21 views

why wont my macbook pro mount my disc

I have been using my macbook pro since 2013. Around early 2017 I got a 275gb crucial ssd and installed it. It was working fine until about a month ago my macbook would no longer turn on. Took it to ...
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1answer
30 views

MacOS High Sierra Suddenly Bloated by About 40GB [duplicate]

I noticed that sometime in the last couple weeks or so my 2015 MacBook Pro's High Sierra bloated by about 40GB. In that time span, I have not installed any new software nor have done anything except ...
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20 views

How to rebuild Raid 0 Directory Via Terminal

I will start by saying that I am not terminal savvy! So please have patience. I have 2 4TB 2.5 Seagate drives that were removed from casing and installed in a Startech 2.5 Dual Raid enclosure. I ...
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27 views

My Macbook Pro won't mount my ssd

So my Mid 2013 Macbook Pro wouldnt turn on and I ended up having to swap its motherboard to get it to turn on. However once I did that it did not automatically boot using the ssd (that was working ...
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1answer
25 views

Apple Internal Hard Drive Error

So long story short, my iMac was working perfectly fine and I just decided to restart it because the fan was loud, it made a weird noise and now it keeps taking me back to either reinstall my macos, ...
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1answer
54 views

Mac won't access 4 TB Seagate USB drive

I don't see it in Finder, I don't see it in Disk Utility. I don't see it in the system profiler. diskutil -list /dev/disk0 (internal, physical): #: TYPE NAME SIZE ...
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Multiple “Disk not ejected properly” messages during sleep

When I hook up a WD My Book 3TB external hard drive to my 2016 MacBook Pro via a third party USB-C to USB-A hub and let the computer sleep during the night, this is what I’m greeted with the next ...
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45 views

Recovering GPT from a failed Mojave upgrade

Background: My partner decided to upgrade her work iMac to Mojave. Apparently, towards the end of the process, it hung on a black screen, said an error had occurred and would try to recover. It cycled ...
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1answer
105 views

APFS partition inaccessible, container missing

I'm running macOS Mojave on a late-2015 4k 21.5" iMac. I have lost access to my internal hard drive, but I can use my iMac by running macOS from an external drive or through recovery mode. When I ...
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0answers
39 views

macOS not allowing me to restore media files from one external drive to another

I am trying to restore media from an external drive to another external drive now both the partitions have been formatted with the same partition map GUID partition map (I am also getting an AFPS ...
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0answers
11 views

Use external hard drive with TimeMachine backups on reformatted computer

I’ve backed up my computer using Time Machine on an external hard drive. I then reformatted the hard drive and then installed the OS. I would like to continue to use the same external hard drive to ...
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1answer
32 views

Help - Have I bricked my MacBook Air?

I have a late '10 MacBook Air with 64gb ssd, it was getting very slow and very full so I decided to wipe and start afresh. I followed some online instructions, signed out of everything then erased ...
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3answers
31 views

How can I find the files being used by System? (where is my disk space going?)

If I go to About This Mac and click on the Storage tab, it tells me that I have 500 GB of Flash Storage and that 15.49 GB of 399.57 GB is free. It will also tell me that 226 GB is for System, 130 GB ...
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17 views

Any way to repeatably assign a disk ID for a Fusion Drive hdd?

When mounting my fusion drive at boot time, sometimes the hdd is assigned disk0 and ssd is assigned disk1; other times these assignments are reversed. Is there a way to ensure that the id assignment ...
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0answers
25 views

Macintosh HD not showing in Disk Utility or Installer, unable to install to it

My Macbook has been working out great for a long time. For a while I used solely Bootcamp because I liked the Windows interface, but switched back to macOS recently and updated to High Sierra. However,...
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1answer
16 views

Create an hardlink across storage device (or alternative solutions)

I have named my secondary SSD with a name with a space in it - "My SSD", and have been using it for many years with multimedia applications without any problem. Part of my media library with thousands ...
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0answers
18 views

Apple hardware issue on my Mac Mini (2010)

I've got a Apple hardware issue on my Mac Mini (2010). For the last few months when I do a TechTool Pro 9 report, the results includes a test of the "Smart Check which show a "Warning." A couple of ...
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0answers
464 views

macOS Mojave (Disk Utility): Object Map is Invalid

I was trying to resize the APFS volume and remove the free space until I got this error and Disk Utility is unable to do anything about it. [The full order of what happened] Running operation 1 of 1: ...
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My MacBook hard drive has 12 GB of mysterious hidden files, and nothing seems to know what they are

I recently noticed that my MacBook's 120 GB SSD was almost full, despite having only around 78 GB of total files. I couldn't locate any of the mysterious other stuff taking up space on the drive, so I ...
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How can I delete files on a full Time Machine volume?

while doing a backup – huge because of a lot of new RAW image files – to my external backup-volume (4TB WD MyBook that never showed any problems, age ca. 2 1/2 years) TimeMachine stopped with the ...
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How to convert external drive from Apple Partition (APM) to GPT without formatting or erasing its contents

The title is self-explanatory. My Google-Search-Fu only returns results where the conversion undergoes a destructive process. Backing up the contents and subsequently restoring them solves the problem ...
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149 views

Unable to resize main HD after deleting Bootcamp Partition

[Note:This question is dissimilar to the other ones like this since my Bootcamp partition does not show up on listing the drives in terminal.] I added my bootcamp partition to parrallels desktop. I ...
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0answers
25 views

Different recoveries can (cmd+opt+R) and cannot (cmd+R) find new ssd

I bought the SSD Transcend 850 to replace my old stock ssd and I was trying to install it. Now, if I press cmd+opt+R utility disk lets me see the new ssd and initialize it but I can't install Mojave ...
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Application Icons on Macbook Air

I have copied applications from my hard drive to an external drive. Then deleted the applications from my hard drive. The icons of the applications are no longer visible in Launchpad. How do I get ...