Questions tagged [hard-drive]

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

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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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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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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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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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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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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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'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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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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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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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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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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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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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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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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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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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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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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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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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)....
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I am unable to mount or repair 1TB seagate external hard drive on mac

I tried using disk utility both in the regular mode and recovery mode. I tried using the terminal and this is what I get: MBP2011:Volumes admin$ diskutil repairDisk /dev/disk2 Repairing the ...
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Change permission of external hfs drive

Two of my external HFS+ drives changed permission after I did something wrong while my iMac (Sierra) was connected to an old MacPro2.1 (Snow Leopard) and I shared all the disks on network. So I lost ...
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Carbon Copy Cloner - Bad files that are unrecoverable. What should I delete and should I reformat?

I just used Carbon Copy Cloner (CCC Version 3.5.7, Mac OS X 10.7 Lion). Everything copied to my external backup drive except for about 500 random files - most of which are in the same folders and don'...
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Is it necessary to “Restore” files from a Time Machine backup if I can already access them directly from the backup disk using Finder?

I have an external hard drive that I've separated into two partitions: one that I use for additional file storage, and one that I use as a dedicated Time Machine backup disk. Something has gone wrong ...
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“Not enough disk space” despite seemingly having more than enough

I tried to move a folder from an external drive to my new MacBook Pro's internal drive, but get a "Not enough disk space" error: The folder I'm moving is 23.89 GB: But my internal drive is supposed ...
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Should the internal disk of a Mac be erased?

I saw this post which said that the internal disk of a Mac should not be erased, but it doesn't explain why. Does anyone know?
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What's the best way to use SuperDuper to back up multiple hard drives to partitions on a single drive?

Here's the setup I'm setting up: Mac HD (500GB SSD) Media HD (2TB SSD) Daily Backup HD (3TB HDD, partitioned into a 2TB Daily Backup Mac HD, a 500GB Daily Backup Media HD, and an irrelevant 500GB ...
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Yet again an FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF partition issue

Update June 10th Partition seams to be back, almost, please check update 4 at the bottom This is happening on a Macbook Pro June 2012 version. Disk is a 1T SSD and it was up to date with Mojave till ...
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What could be the cause? I/O completely died. Constant spinning, even logging in takes forever

iMac 5K, late 2014 model. The weirdest thing happened yesterday. This machine is usually very performant — 8GB ram, 3TB Fusion drive. I dual-boot Windows on it using Boot Camp. As of now, I still ...
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Hard Drive Corrupted [duplicate]

I Erased my hard drive from mac utilities from the recovery mode, but now i am not able to install Mac OS Mojave as it doesn't shows my mac hard drive to install and when i checked it in utilities, it ...
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Hard drive ignores available free space

I have a 500 GB SSD. At one point, it had 2 partitions--one for my regular macOS boot (430 GB), and one for developer previews (~70 GB). At some point, I deleted the developer preview partition, but ...
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MacBook Pro: Erratic Trackpad behavior when an external 3.5" drive is connected

When I plug my external 3.5" hard drive into my 13" 2016 MacBook Pro, the Trackpad becomes very erratic and difficult to use. The drive is housed in a powered enclosure (brand Integral). Other ...
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1answer
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A WD hard drive can be detected by one Macbook but not another

A WD My Passport hard drive (bought in 2016-7) can be detected by one Macbook (a 2018 15" MacBook Pro) but not another (not even in diskutil) (a 2013 11" Macbook Air). What is the explanation for this?...
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MacBook Pro doesn’t recognize new internal HDD

My MBP 13” mid 2012 doesn’t recognize new HDDs (500 GB HGST 5400 rpm SATA 3.0gb or 500GB HGST 7200 rpm 6.0g) in Disk Utility, but picked up a Toshiba 500 GB. My previous HDD failed(dead). I am ...
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disk drive about full. Library folder has over 100 GB

I have an old iMac running High Sierra. I have an internak 250 GB drive and a 4 TB eternal hdd. My internal drive is about full. I was going to clear up some room but I noticed my library folder has ...
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External hard drive is not recognized by MacOS after trying to install something on it

Can someone help me with this? (without having to format it) Here's the table start size index contents 0 5859790848 MacBook-Pro-de-Elias:~ ///$ sudo gpt show /dev/...
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MacOS partition doesnt boot up and shows as MBR part 255 [duplicate]

Sadly the post tagged as duplicated does not work for me ——————— Quick specs: Macbook Pro Mid2012 500GB SSD thats been in the Macbook for around 4 years MacOS Mojave BOOTCAMP Windows (100GB) ...
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APFS Container Disk & APFS Container Scheme Mismatch - Cannot Resize

I have an issue where I screwed up my partitions by removing a PC formatted partition, and it did not recombine itself with my overall partition. Issue happened because I got a new SSD, loaded my mac ...