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

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MacBook Pro suddenly started to freeze with any action (using SSD)

I'm having a trouble with my MacBook Pro (Mid 2012). I have upgraded it (5 months ago) to use a Kingston SSD instead of a SATA, and everything was perfect. Very fast and smooth...until yesterday. I ...
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50 views

Cannot change startup disk - Yosemite

I've got a clean install of Yosemite on a brand new hard drive. All good, up and running (got to boot to it manually). As the title says, I can't get the system to boot from this hard drive. Error ...
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29 views

How to be sure that I installed the fusion drive properly?

Hello guys I would like to know how to be sure that I properly installed the fusion drive because last night I bought an iMac but I had to reinstall el capitan for reasons but since I'm a newbie I ...
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16 views

Can a backup HD be erased despite it NOT being able to be “unmounted”

An external portable HD simply stopped working [no longer recognised by my Mac] so I took it back for warranty replacement. He couldn't read or "unmount" it either [whatever that means] so I just said ...
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2answers
94 views

Not able to restore my 3TB fusion drive late 2013 iMac

Last weekend my iMac started to act in a very strange way. While I was working, my Mac was very slow and the mouse and keyboard didn't respond very well. So I decided to reboot because having two ...
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1answer
85 views

How can I encrypt a disk where diskutil cs convert reports “a problem”, leaves disk unreadable?

I'm trying to encrypt my Time Machine backup volume, but diskutil refuses, and leaves the disk unreadable (but repairable using Linux). How can I proceed? It's a Western Digital Elements 107C 3TB ...
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24 views

How can I fix my external HDD?

So, my mac suddenly restarted because of an error. I was downloading some files in my external HDD when it happened. When my macbook started up, I could not open my external HDD, I tried to repair it, ...
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1answer
64 views

Move hard drive from macbook pro to macbook air

I have a Macbook Pro with a 250 GB SSD hard drive (Macbook retina Mid 2012 i7) and a Macbook air with 120 GB SSD hard drive (Mid 2012 Intel Core i5). I would like to move the swap the hard drives if ...
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2answers
204 views

Disk utility detecting error in single user mode, but not when disk utility is opened via recovery mode

I verified the integrity of my Macintosh HD (MacBook Pro 13" 2012, OS X Yosemite) with Disk Utility when I was logged in as a user and it reported this problem: Invalid volume free block count ...
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1answer
70 views

Windows using Bootcamp won't read any USB memory sticks

I just installed Windows 10 on my MacBook (Early 2015, OSX El Capitan 10.11.2), and after everything set up I tried to plug in my External Hard Drive. I made sure this HD would and does work in ...
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33 views

Rsync for backups

I have gotten into the habit of using rsync to do my own backups of an encrypted volume containing my personal info onto an external hard drive. I did not use Time Machine, because I do not own the ...
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1answer
37 views

Don't want my hard drive to die again!

A couple of months ago, my Mac Book Pro wouldn't start up - it would make it halfway through and then power down. I took it to the repair store, and they said the hard drive was broken, and they ...
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1answer
223 views

Time Capsule backup consistently fails

I am running El Capitan (10.11.3 beta) on a 2011 27" iMac. Recently, my Time Machine backups (I have a Time Capsule connected to the computer directly by USB) started to fail. First, I got a message ...
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93 views

How to recover corrupted HFS+ partition in external HD?

I've got a 1 TB SeaGate FreeAgent Drive with following partitions: 700 GB ExFAT (labelled as FREEAGENT1) 300 GB HFS+ (labelled as FREEAGENT2) While moving data from 1 to 2, it got accidentally ...
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1answer
161 views

How to force a readonly volume to remount as read-write?

I have an external Firewire volume with some filesystem problems. One problem is that Disk Warrior can't fix these errors because there is not enough space left on this volume (in fact, it is ...
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178 views

How to mount a disk that was not ejected properly?

I am using OSX El Capitan 10.11.2 I have an external Western Digital of 1TB When I ejected I did not do with the properly way and now I am not able to mount I can see the disk here But when I ...
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197 views

External Hard drive are always readonly, even HFS+ and FAT32 format

I am running in to a peculiar problem. I have 3 external hard drives and few weeks back, I may have ejected one of them ungracefully. Ever since, they all are getting connected in read only mode. I ...
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3answers
1k views

How can I upgrade MacBook Pro disk space?

I have a fairly new MBP with 256 GB of SSD as disk space. I am running out of disk space now. Most of it is being used by Pictures and Music and I have done all the cleaning I could. What's the best ...
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1answer
34 views

Seagate External HD (GoFlex) Crashes Macs

Situation: My most important external Hard drive is crashing my computers. It had my time machine backups and random files stored. I've tried it on my iMac and Macbook Pro. It may be worth noting I ...
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71 views

M.2 SSD Adapter for Mac Pro Tower

I'm in the process of buying an used 2012 mac pro. Now, I noticed that on ebay, many of them are offered with M.2 (Pci-e) SSDs, which indicates they have been equipped with a M.2-to-PCIexpress4x ...
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121 views

NTFS Disk “failed to mount”

I have an iMac running El Capitan, and an external disk formatted NTFS that will not mount on the mac. It will mount perfectly in Windows and Ubuntu. I'm not trying to write to it, right now I just ...
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1answer
24 views

Where is my .bashrc file in a dd image?

I created an "emergency" image of my entire HD using the procedure explained in Recover a dead hard drive using dd. I spent a lot of time fine tuning my .bashrc and .profile files, but I cannot find ...
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1answer
99 views

Exchange Time Capsule hard drive with PS4 Hard Drive

is it from the data and values possible, to exchange the PS4 and Time Capsule's Hard Drive? So built in the PS4 the Time Capsule hard drive and in the Time Capsule the PS4 Hard Drive. Could anyone say ...
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58 views

How to open a NTFS disk image file in OS X

I have a failing external HDD that I cloned to a working external HDD by making a disk image of it. Unfortunately, that cloned disk image file (and the original HDD) are of NTFS format. (I ignorantly ...
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1answer
628 views

Can't see FAT32 and NTFS external partitions on OS X El Capitan when SIP is enabled

I've installed Homebrew, FUSE for OS X and NTFS-3G. It helped to see external partitions (FAT32 and NTFS) when SIP is disabled (OS X El Capitan). But when SIP is enabled, I can't see NTFS and FAT32 ...
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1answer
352 views

BootCamp can't partition

I had a problem with my Macbook that couldn't read the internal SSD and boot OS X, but I solve it: MacBook does not mount, does not boot, does not read drive . I used resizeStack method to get the ...
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2answers
857 views

EFI system partition repair

I'm having a problem with the internal SSD on one of my Macs running 10.10. It was working fine when I was browsing the web one day and then suddenly froze with the spinning beachball; I couldn't ...
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1answer
80 views

What is it that prevents using a 3rd party SSD in a 2015 rMBP?

I bought an Early 2015 MacBook Pro Retina model with the 128GB SSD and have been wondering what to do if I need more disk space.. then I found out that it's currently not quite possible to just stick ...
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1answer
121 views

Decrypt an external hardrive FileVault

Recently, I had an accident with my Macbook Pro. I dropped water on it and the motherboard is now dead, which means my Macbook Pro is also dead. Hopefully, the hard drive isn't damaged. When I plugged ...
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2answers
239 views

I think I messed up the Fusion Drive on my 2TB iMac

I want to ask you how can I get back together my Fusion Drive (merge HDD and SSD together). I was installing Windows 10 and during installation it crashed and I was not able to boot in Windows neither ...
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1answer
114 views

How to mount a DMG image created with dd?

I created an "emergency" image of my dying HD using the procedure explained in Recover a dead hard drive using dd. Now when I try to mount the dmg file I get the message: "The following disk image ...
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1answer
191 views

How do I fix a corrupted USB drive on OS X?

I accidentally bumped the drive while repartitioning it and it unmounted. After that when I tried to repartition with Disk Utility I got Partition Failed with the error: Could not open device Now I ...
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1answer
139 views

How do I ignore ownership on an external hard drive without using Get Info?

I have been trying to set my external hard drive to ignore ownership in permissions, but I can't seem to do it. I am trying to enable the ignore ownership option because I am trying to run Xcode from ...
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64 views

Mac HD unmounted and cannot be repaired. Can I still backup to an external drive?

My Mid-2012 MBP running on Mavericks has been slow lately--one day it crashed and I had to force shut down. When I turned it back on, it automatically booted to Utilities OSX without giving me options ...
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2answers
2k views

Deleted photos from MacBook but storage space not reclaimed

I recently ran out of space on my MacBook Pro because I have a lot of pictures saved to it, so I went out and bought an external hard drive (2 TB). I moved every single photo on my MacBook hard drive ...
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23 views

CMD+R wil not start Recovery HD - Fusion Drive

I have recently my Macbook Late 2009 with a SSD crucial 500Mo (Data doubler). I made a Fusion Drive with no problems, then I re-installed el Capitan again with no issue (except I tried to re-install ...
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25 views

Finder copying dialog freezing from time to time during transfer

I'm trying to backup 2tb drive I have connected to my mac to another drive using this enclosure via firewire 800: http://eshop.macsales.com/item/OWC/M3QX2KIT0GB/ The problem is that from time to time ...
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1answer
29 views

Files moved partially and the rest gone!

I moved about 100GB folders of pictures from one external hard to another one. In the beginning of the process the finder breaks down and didn't respond. None of the relaunch solutions worked! So I ...
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24 views

access crashed mac hard drive through USB connected to PC

i pulled the hard drive out of the mac and connected it via USB to my PC. I have downloaded and tried to view the disc using MacDrive10 and HFSExplorer. neither of them show that the disk is even ...
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1answer
109 views

MacBook does not mount, does not boot, does not read drive

When i press alt on my MacBook during startup, it only shows a disk that i used to have Windows installed (which is now empty). I erased that disk when i was last logged in on OS X. Then i tried to ...
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1answer
8k views

What is com.apple.bird? Why does it grow so big?

Trying to clean up their hard disk, some users discover ~/Library/Caches/com.apple.bird is pretty big. In the order of too many Gigabytes. What is it?
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1answer
164 views

Bootcamp + Custom hybrid MBR = PAIN

I installed OS X to my MacBook from scratch. I mean used USB stick with installer and fully erased disk. Then I created 5 partitions: One for OS X, one for Windows, two for Linux and one for Data: | ...
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2answers
252 views

Partition map rebuild

I have an external hdd that doesn't mount anymore. I think I screw up with all the research I done and things I try. I have vital info on this hdd and I'm really afraid to lose it. I tried this: ...
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17 views

Can't remove partition on Macbook

I can't delete a partition on my macbook. On my main hard disk, I selected the partition I want to delete however I can't click on the '-' symbole. I already read a topic talking about a similar ...
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1answer
85 views

Can a MacBook Pro (Retina, 13-inch, Mid 2014) have their hard drives upgraded

My friend has a MacBook Pro (Retina, 13-inch, Mid 2014) -- she wants to install a magnetic 2.5" HDD. Can I install any such drive or do they have to be apple compatible hardware.
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8 views

Time Machine backup from new upgrade [duplicate]

I recently wiped and upgraded my computer to El Capitan, and previously I used MyPassport for Mac to backup my information on TimeMachine from my Yosemite account. Now that my computer is wiped and ...
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24 views

2 Disks with the same name, how do I delete one?

I initially boot-camped a disk into a windows partition, and wanted to delete it. Initially I thought formatting it to free space would work, but it didn't. I tried again and accidentally formatted it ...
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Why are extenal HDDs attached to my TimeCapsule shown as empty?

I have attached an external USB HDD to my TimeCapsule. The disk is HFS+ formatted and contains some 100GB of data. When I mount this disk on my Mac, via the TimeCapsule, it shows up as empty. When I ...
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1answer
44 views

Why is my iMac (late 2013) HDD so slow?

My iMac's hard disk has been slow from the start. But recently it is becoming unbearable. Disk read and write speeds are consistently below 50 MB per second, without any applications producing any CPU ...
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1answer
143 views

How to move my Photos library to internal drive to use iCloud Optimize space feature

I recently finally imported my photo library into Photos from iPhoto. I have my library stored on an external drive since my internal 256gb has been full for awhile. Now that it's in Photos, I went ...