Questions tagged [hard-drive]

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

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Why does unplugging a drive lead to data loss when moving files?

I did a cut and paste (Comd+C then Comd+Opt+V) on my Mac 10.14’s Finder to move some .mov files from my internal SSD to my WD My Passport External Harddrive. Alas, after a while, I move my Macbook ...
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How to create an accurate byte-level copy of an SSD to another drive?

TL;DR I need to recover lost files from an SSD but don't have the time to do it right now. How can I clone an SSD to another drive on byte level, including drive areas which the OS thinks are free? I ...
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Unable to mount my WD Easy Store 4TB [duplicate]

I am unable to mount my WD Easy Store 4TB on my Mac. I am using macOS Mojave - 10.14.5. I tried several commands using terminal to unmount, but all in vain. It shows ejected but still shows in ...
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Data loss due to lost connection when transferring to External HDD - are they on the HDD actually?

I did a cut and paste (Comd+C then Comd+Opt+V) on my Mac 10.14’s Finder to move some .mov files from my internal SSD to my WD My Passport External Harddrive (connected by USB 3.0 with a USB-C to USB ...
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1answer
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I accidentally caused one of my encrypted drives to start converting into a decrypted drive. How can I stop it?

One of my external hard drives used for Time Machine backups has an encrypted HFS+ volume. While in the process of trying to re-associate the backup with my system, I accidentally told it to start ...
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Application randomly disappearing/removed from Applications

This started a while back, I noticed a question mark over my Postman application on the docker. Then I checked applications and it was still there. Now Visual Studio Code also suddenly got a question ...
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1answer
51 views

SSD drive partition showing as FFFF on my MacBook Pro 2010

About three years ago I replaced my original hard disk on my 2010 MacBook Pro with SSD drive to make the system run faster. It did work fine until now. Regrettably I'm in this position now as my ...
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MBP TB 2016 Failed to format and crashes. APFS Container damaged?

Hy everyone! I need help restoring my MBP. 2016 MBP15TB I made a USB stick with Mojave, restarted with Command+R, went into disk util, and wanted to erase my SSD to start the install. The computer ...
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Why there is not enough disk space on my Elements drive? [closed]

I bought an Elements Western Digital 4TB, and it can't fit all the data I am trying to copying from a 1TB My Passport Western Digital. Is it perhaps related to cluster size, and if so, how can I ...
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Why is my external hard-drive is not appearing (most of the time)

I recently bought an external hard-drive, Western Digital 4GB, and I have a MacBook-pro 2015 (15inch). When I received the hard-drive, it worked like a dream, I just re-formatted it to apple's file ...
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Macbook pro 2015 PCIE NVME HP EX920 M.2 Mojave Disk utility doesn't see drive

As the title says, if more specs are needed. As for right now no matter what I do, I can't get computer to read the nvme disk. What have I tried? 1: Moving around the drive in the socket 2: Trying ...
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1answer
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Cloning macs within a context of no internet access

I'm shipping a project which my client (the army) wants to run on new MacMinis2019, which they, being less tech saavy consider a whole (the mac with all the software and configuration installed on it ...
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Changing from FusionDrive to SSD + SSD on iMac 21.5" 4k (2017, A1418, EMC3069)

I've got a 2017 iMac 4k in 21.5" with a 1TB FusionDrive (HDD + NVMe SSD). I plan to open it to max out the ram as well as swap out the HDD for a SSD. However, I'm a bit at loss what to do with the ...
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Problems with bless tool

The computer is an early 2015 13" MacBook Pro. Two weeks ago we sent my spouses 15" in for battery recall, and bought an OWC Aura Pro to replace my internal 1GB SSD (we SuperDuper'd her 15" MacBook's ...
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Force unplug SSD without eject and SSD partitions gone

I was working copy my photos to my external SSD hard drive from my iPhone. I created a new photo library on SSD(USB connected) and start import from iPhone. But SSD partitions were unmount by itself ...
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After enabling Filevault 2 on Macs running 10.12/10.13/10.14 - external non encrypted hard drives don't auto mount [closed]

This appears to be a known issue with enabling Filevault 2 on Macs, but does anybody know a workaround? Currently the best workaround known is to launch Disk Utility and mount the drives using its ...
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Network drive in finder sidebar disappears, is there's a way keep them in unmounted state?

I use Automator to mount my network drives on boot by following instructions from this link: http://osxdaily.com/2012/05/04/automatically-connect-to-network-drive-mac-os-x/ and then drag the drives ...
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Daisy chaining two external HDD

I have two Glyph 1TB external HDDs connected to my Oct 2015 iMac, 27” 5K display, Fusion HDD, OS 10.14.5 1 has a single partition and is devoted to TM backups The other has two partitions: one ...
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1answer
24 views

System fails to recognize main macos boot partition after Ubuntu dual booting attempt

I recently attempted, and temporarily succeeded, in dual-booting Ubuntu and MacOS Mojave on my MacBook Air. After I installed and successfully tested Ubuntu, I tried to use Disk Utility to create a ...
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macOS Catalina: MacBook Air Corrupted HD Partition Map

My MacBook Air is not working after installing macOS Catalina. I tried everything to erase the hard drive using Disk Utility and diskutil command, but it won't just let me. I tried booting into ...
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EFI missing, Question folder appears, Mac SSD appears and disappears, what do I do?

Setup Macbook Pro retina 13 A1502, SSD 128Gb Running Yosemite, but currently doing the update for high sierra. Problem: Question marked folder appear after I left it for 2 days, battery run out (left ...
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16 views

Create a new partition with disk utility

I'm running OS X 10.11.6 and I want to create a new partition on my disk (disk0). Is there a way to first resize the disk to make some space and then add a new partition? When I boot from this disk ...
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Resized with iPartition but MacOS still reports old partition size

I resized an external drive partition from 800 to 900 GB with iPartition but MacOS still reports old size. Did unmount drives, did restart, but still. MacOS 10.12.6 iPartition 3.6.2 (216) Update: ...
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2answers
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Force eject a device

Because my drive will freeze occasionally, I would have to pull the cable out. (see the question below for more detail): Seagate Backup Plus 5 TB became unresponsive after long period of use I've ...
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2answers
33 views

Increasing a user's home directory size, external drive?

My mum has an iMac with a 3TB fusion drive in it and she's running out of space. She loves photo and video editing. She's good with final cut but not with managing separate storage. SSD's do not go up ...
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0answers
34 views

Why do I have 2 drives with the same used space?

this is a weird one. I just bought a 2nd hand macbook retina and turns out that when I re-installed macOS, the storage dialog showed up a 2nd drive. The very first thought was that the main drive is a ...
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1answer
28 views

Installing Windows 10 on iMac 27" (2017) Mojave, 3TB

I'm trying to install Windows on my Mac. I had no problems before, or on my older iMac/Macbook, with installing Windows on a Mac. I decided to detach my Fusion Drive, so I ended up with a 3TB HDD ...
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27 views

'System' disk usage very high [duplicate]

On a headless Mac Mini running Mojave, my 1tb Macintosh HD is nearly full at 861gb used (after deleting some stuff - it was critical before). However the sizes of the folders within it after forcing ...
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MacBook Pro 2013 - new hard drive installed - strange startup screen

I just installed a new hard drive in my MacBook Pro 2013 model. It's exactly the same make as the original drive. Just to be sure, I pre-formatted it as Mac OS Extended using a SATA-USB adapter cable ...
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Formatting disk to Mac OS Extended Jorunaled, Encrypted taking very long. Is it normal?

so long story short, my newly purchased external SSD got corrupted a day after formatting it and wouldn't erase. I read somewhere on this site that if I tried to format it to Mac OS Extended (...
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High Sierra Installation com.apple.osinstall error -3

My mac book pro 2010 started acting up last night. Wifi was slow and certain letters were not displayed properly. I restarted the computer and it failed to boot up again. I took the drive from the ...
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iCloud Drive stuck when uploading large amount of files?

Yesterday I decided to use iCloud Drive as my main cloud storage alternative, so I copied most important data from my external drive to the iCloud Drive folders and let it go all night long. Today ...
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How many hard drives can you connect to an Apple AirPort Extreme? [duplicate]

I'm trying to connect up to four hard drives to my AirPort Extreme. I have hooked them up using a powered USB hub but currently, only two of the drives will show up. I have looked all over but I can't ...
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EHD has 5 TB capacity but Finder only shows 600 GB

I have a Seagate 5TB external hard drive. Disk Utility shows 5TB, but when I click "Get Info," it only says 602 GB. How do I fix this? My Macbook runs on El Capitan. Thanks.
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3answers
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Make Mac eject external drives when going to slumber or sleep/wake

I have an external drive, a "Western Digital My Passport for Mac". I usually leave it connected and walk away from my MacBook Pro. The Mac often went to slumber and many times the "not properly ...
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1answer
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External disk does not show in “diskutil list” after premature eject, what can I do?

This question is related to External drive does not mount after plug off without eject, but the difference is that in my case, the drive did not appear in the Disk Utility application nor in diskutil ...
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Seagate Backup Plus 5 TB became unresponsive after long period of use

I recently purchased a new Seagate Backup Plus 5TB for data use, because none of my drives are functioning properly. My old Seagate Expansion 2TB hard drive failed ("Unable to repair"); the Seagate ...
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1answer
39 views

Once backward conversion of encryption has started, can it be stopped?

I have accidentally given my external Extended journaled hard drive (with password) the command to "decrypt" the disk. When you restart the decryption starts immediately on the external, how can you ...
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2answers
130 views

Why does my mac not have free space even after I delete files?

Today I want to install Catalina but it requires 17 GB of disk space, and I only have 8 GB. So I started to delete files but only found out that the disk space was unchanged or even shrinked more ...
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23 views

One mac shows an EFI partition for my EHD, another does not

like the title says, I have one mac that mounts the EFI partition on my external hard drive, and another that does not. I'm not sure how the EFI started showing up on the one mac, but I'd like it to ...
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1answer
21 views

Disk has multiple partitions but Disk Utility can only mount first one [duplicate]

View from Disk Utility: Output of diskutil (for this disk only): /dev/disk6 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: ...
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MacOS Boot Error

I hope I am able to explain the problem accurately and with sufficient detail. The problem started with the flashing folder at boot up. I used the Command + r option to get into recovery mode. ...
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0answers
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Trying to install OS X El Capitan, error of external hardrive needing GUID Partition Table Scheme

I have an old MacBook Air with Software Mac OS X Lion 10.7.5 (11G63). I am trying to install the OS X El Capitan but having issues. First there was not enough memory on the mac (even though I have ...
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1answer
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Seagate (Samsung) external drive USB 3.0 not mounting on High Sierra

Please redirect if i've missed a similar thread: Seagate 500GB USB 3.0 working fine last week, now won't mount. OS is High Sierra 10.13.6. I have tried a restart and a recovery mode restart, no ...
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1answer
39 views

Hard drive replacement iMac late 2013

I know almost nothing about computer repair. I'm an elderly woman who is partially blind. I did find a step by step guide on iFixit and have a friend with tools and nimbler fingers than mine. He's not ...
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1answer
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Deleting my Recovery HD?

So I'm running the latest Mac OS Mojave version on my ~4 yo MacBook Pro. I have, and I had for a while now this "Recovery HD" that takes aout 70,3GB. So 3 questions here : I'm getting kind of narrow ...
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1answer
19 views

Mount a previously internal and encrypted HDD as an external drive

I upgraded the hard drive on my late 2015 iMac from the fusion drive that came with it to a 1TB Samsung SSD. My SSD has a fresh install of macOS and I planned on using my fusion drive as an external ...
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1answer
188 views

Bootcamp - Stuck on “Partitioning Disk…”

When attempting to add a Windows 10 (April 2018, build 1803) partition to my 2019 iMac, I get stuck on "Partitioning disk..." perpetually. When I look at Disk Utility, the OSXRESERVED and BOOTCAMP ...
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1answer
27 views

External HD (Time Machine) sleep issues

I have a 4TB WD external hard drive with three partitions on it, one being a Time Machine partition. When a Time Machine backup is running and the computer goes to sleep, it triggers a few different ...
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1answer
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Seagate Backup Plus Mac reformatted to NTFS don't mount on Mac

I have a Seagate Backup Plus Mac drive that, as the name implies, came with the HFS format for Mac. I reformatted it to NTFS to be compatible with a Windows PC (I was not working with Mac at the time)....