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

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iMAC MC508LL/A new hard drive, cannot install from disc

I was trying to repair a friends iMac with a failed hard disc. I bought a 500GB 850Evo SSD to replace the failed hard disc and installed it using the OWC kit. Now I am trying to get it started up. I ...
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39 views

MBP dramatically slowed over the weekend

I have my MBP (13" early-2011 i7) attached to an external screen (not in clamshell mode). I'm not sure what happened over the weekend but the MBP has been possessed somehow; first off it wouldn't wake ...
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92 views

How to solve continuing error “internal disk needs repair” after installing a 8 TB HDD in Airport Time Capsule (A1470)

I've replaced the failed 3 TB HDD (SATA 6Gb/s 64MB Cache) with a model number (ST3000DM001) in my TC (A1470) with a 8 TB HDD (from HGST model no HUH728080ALN600). I've used the Airport Utility to try ...
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29 views

Is it possible to install an OS onto a disk drive, then move and plug the drive into a different slot but still have it be totally bootable as normal?

MacBook Pro, 15" mid-2010. Odd question, I know. I want to shuffle around an HDD and SSD in my laptop. I'm wondering if I can install Mac and Windows onto the SSD, then move it to the optical bay w/o ...
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80 views

Macbook Air (2013), 10.11, & Bootcamp Problems

So I have a mid 2013 Macbook Air and I have it running 10.11. I have had a Windows 7 partition running in parallel (not the program) that I created using Bootcamp a couple months after I bought it. ...
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49 views

Hard disk doesn't show on boot after erasing with Disk Utility

I have inserted a new disk. It shows after holding the option key. Then I opened Disk Utility and successfully formatted the disk. I restarted and help option but now I can't see my hard disk. I ...
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55 views

Initialize 6 TB internal hard drive

I've found it both economical and flexible to use a docking station with internal hard drives (the ones that look "naked", i.e., have no plastic casing) for backups. I use this docking station to ...
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87 views

Time Machine Backup to Raspberry Pi NAS crashes when backup being deleted

I hope this is the right place to put this as I'm not sure if it's a RPi issue or a Time Machine issue. Basically, what's happening is I have Raspberry Pi Model B set up with an external hdd to ...
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34 views

Macbook Air Mid-2012 not booting

A day ago I got a message on my Mac that It's running out of space, so I ran a program named Omni disk sweeper to show me some files I can delete. I vaguely remember it showing me some temporary files ...
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39 views

Windows formatted disks owned by $USER, while Mac formatted disks owned by “root”, right?

I noticed that some disks were owned by $USER and some by root: $ ls -l /Volumes total 88 drwxrwxrwx@ 1 jdoe staff 8192 Jul 14 10:22 USBdrive drwxrwxrwx 0 root wheel 0 Jul 14 15:54 ...
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70 views

My SSD works on every computer except mine

I've asked several questions on Ask Different about an Intel SSD that I'd bought and tried to use in a DIY Fusion Drive in my early 2011 13" MBP. The Fusion Drive worked for a few weeks and then quit ...
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71 views

Is there any way to disable/turn off the hard drive inside an Apple Time Capsule?

I have an old Time Capsule wireless router, 1st generation (MB277LL/A), and whenever I apply changes to it or have to restart it, I have to wait for the hard drive disk inside it to spin up, every ...
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170 views

Installing OS X from Recovery - Apple ID needs to be reviewed and nothing happens

I had a problem with my hard drive. I backed-up and erased by disk. Now I can't reinstall OS X. Here's what I did: Went to Disk Utilities on startup Erased hard drive Went to reinstall OS X It wants ...
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907 views

Prohibitory sign on Mac startup running Yosemite

I used disk utility today on my MacBook Pro running Yosemite to create a bootable USB. I don't recall touching the hard drive of my MacBook Pro at all. After I finished the process, I went onto Google ...
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32 views

HD corruption - OS X partition now thinks it's FAT

Well, I've got myself in a bit of a pickle here. I have been trying to do creative (unsupported, of course :^) things with my rMBP. I had been using multiple partitions successfully with OS X 10.9.5 ...
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40 views

Mac OS crashed! Need help extracting backed up data

I have disk image file on my external HDD. I tried to extract file from mac.dmg file using 7z x mac.dmg and this is what I got: Processing archive: mac.dmg Extracting 0.MBR Extracting 1.Type EE ...
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21 views

Want to copy whole data disk to ~/Backup/ and then eject, but having trouble finding the disk

I'm trying to write a script that searches for a disk in the external drive, if present have it rip the disk into a folder with the disks name and then eject, then continue searching for that disk. ...
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47 views

Upgrading Mac HD to OWC SSD for a MBP i5 Mid 2012 9,2 . Is Time Machine enough?

The SSD is yet to be delivered but I have already created a bootable USB install of OS X (yosemite) and have done a time machine back up. The question that is haunting me is - Do I need the ...
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63 views

SSD partitioning fails internally, external OK

I bought a Samsung SSD 850 EVO 250GB for my MacBook Pro 13'' Early 2011, but am unable to install OS X to it. (Yosemite 10.10.3) When installing the SSD internally, OS X doesn't find the drive, and ...
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36 views

Making a Damaged USB Writable for Drive Genius?

Apologies for being (sort of) a repost from Unable to be Repaired & Further Problems but I had some further questions and I was worried they wouldn't be answered. I followed Froggard's advice and ...
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13 views

Files damaged when transferred from external HD

I have backed up my zipped , docs , excels and text files on my external HD , this external HD formatted with mac journaled and encrypted. Some time I work with these files yesterday I transferred ...
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58 views

Seagate SSD doesn't work on MBP mid 2012

I have a MPB Mid 2012 and I bought a Seagate SSD ST1000LM014 http://www.amazon.com/Seagate-Lapto...34057423&sr=8-1&keywords=seagate+sshd+1tb+2.5 My mac doesn't format the disk if it's connect ...
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23 views

Don't have Time Machine back up a file again if a Tag is added to it

If I have a large file, let's say a 1 GB ISO file, and I add a tag to it through the Finder, so that there's a blue circle next to the filename now, then Time Machine will consider that the file has ...
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86 views

Cannot make a drive show up on my Desktop

I have a G-RAID running Mavericks. I've got this problem where the G-RAID doesn't show up on the Desktop or in the sidebar of Finder while all other hard drives do show up in these places. When I run ...
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65 views

Lost 32GB on my Macintosh HD

I created a 32 GB partition on my Mac where I installed Ubuntu, then I've deleted the partition from disk utility having errors, I restarted my mac and now I can't see the 32 GB space anymore. As you ...
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75 views

Partitioning a Hard Drive using “Logical Core Volume Group”

I have a series of scripts I use for repartitioning hard drives before a DeployStudio reimage. They're really simple: #!/bin/sh diskutil partitionDisk /dev/disk0 GPT JHFS+ Mac\ OS\ 10.10 100g JHFS+ ...
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52 views

Installed rEFInd Boot Manager, it seems HD re-ogranized

Before I installed rEFInd, I believe there were three partitions to my Mac, disk0, disk1, disk2. Now, when I run in the Command line diskutil list This is what remains: /dev/disk0 #: ...
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2k views

APPLE SSD SM0512F Media Equivalent

My Mac Pro (Late 2013) uses an APPLE SSD SM0512F Media SSD; I'd like to buy an equivalent SSD to use externally for cloning, backups, etc. I noticed on the PassMark website it shows performance ...
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31 views

External HDD is mounted, but files are (suddenly) invisible

Being fed up not being able to write to my external HDD (which is ntfs) I decided to use this script. I checked the script beforehand (I am a ruby developer with some, but limited knowlegde of bash ...
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38 views

Mac Mini HDD noises and internal HDD Standby

I have a default Mac mini 2.8GHz 2014 with Fusion Drive. My problem is that the mac makes a few noises. Because it is my home server and guest are sleeping in that room these noises are annoying. I ...
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90 views

Ipod classic freezes after library is half loaded - restore, new hard drive and Disk U don't work

My elderly 160gb ipod has a problem loading more than about 21,000 songs on to it. The loading from my Itunes from a late 2012 Mac is uneventful and everything looks fine and the Itunes goes through ...
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125 views

High CPU usage during disk operations

Early 2009 17" MacBookPro (MacBookPro5,2) 2.66 GHz Intel Core 2 Duo OS X Yosemite 10.10.3 240 GB OWC Mercury SSD, installed in 2010 I've had issues with high CPU usage for a while now. The original ...
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91 views

Unknown disk found using diskutil, cannot delete

Using the command line, I wanted to see all available drives on my machine. So, I type diskutil list and besides Recovery HD and Macintosh HD, I notice this: /dev/disk3 #: ...
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219 views

Disk Utility won't let me create new partitions?

I had a 500gb HDD installed in my Mac running OS X 10.9.5 Mavericks. Being an older drive it started to have some issues, so yesterday I went out and purchased a new 1TB hard drive to replace the ...
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55 views

Backing up data to an NTFS drive

I have a 2TB external hard drive that is about half full of various photos and other things that I use it to hold. Now, I'd like to backup my MacBook Air to it, as I have no more room on my computer. ...
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116 views

How to backup, restore and erase OS X GPT using dd under Linux?

How does one backup, restore and erase OS X GPT using dd under Linux like it's shown in Archlinux Wiki using the MBR analogue: To backup the MBR: # dd if=/dev/sda of=/path/mbr-backup bs=512 count=1 ...
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88 views

Upgrading SSD and RAM has horrible side effects

upgrade a MBP 13inch ram and hdd to ssd Upgraded using carbon copy cloner. Constant beach balling Takes 40 seconds of white screen to get to the apple boot screen Network just doesn't work. It ...
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26 views

Can't read files on a secondary HDD with caddy

I added a secondary HDD thanks to a caddy (http://www.amazon.fr/gp/product/B0090KFOYS) in my MacBook Pro (Late 2011). I tried to format it and some errors occured. I retried it several times and the ...
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43 views

Extracting files off sparsebundle with read errors

I have a large sparsbundle disk image on a drive that is reporting read errors. I am able to mount the image although it can sometimes take several minutes. I would like to copy any readable files ...
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43 views

Problem with having a duplicate “Users” folder on non-bootable drive?

I just installed an SSD in my 2011 Macbook Pro (running an up-to-date copy of Yosemite), opting to follow this strategy of keeping my home folder on the SSD and then "offloading" larger folders (e.g., ...
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22 views

Why does disk utility want to erase my RAID 1 set?

I have 2 disks, the first a 2 TB and the second a 5 TB the 2 TB is split into 2 partitions and the 5 TB into 3 partitions with one 2TB RAID0 set, one 1TB RAID1 set and one single 3TB partition. I now ...
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160 views

Trying to zero out an external drive that shows “unable to write to last block”, keep on getting an I/O error

I'm trying to zero out a drive to use it as a Time Machine backup, firstly tried to format and "unable to write to last block" showed up. I tried to zero it out, but it took a large amount of time, ...
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171 views

how to mount internal hd after booting with external drive?

I am running macosx 10.6.3 and trying to mount/access the internal hd through diskutility: it does not show up here. I tried this: ...
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20 views

Mac OS taking more than usual space on external drives

Since when I started using mac os I noticed that I'm having much less free space on my external drives than before. I even tried to sum up the content on my external drive and the total size was less ...
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110 views

Mount part of a failed Fusion drive

Long story below. I have the rotating 3TB drive part of a fusion drive. Is it possible to fix/mount/access the files on this drive? I have it in a external usb dock. I get the option to "fix" but it ...
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235 views

MacBook not able to boot using OS X (Yosemite) after partitioning the Macintosh HD (hdd) while installing Kali Linux

I tried to partition the HDD using GParted but it didn't work out. Maybe because I messed up. So after cancelling the whole process, I rebooted my laptop. When I tried booting through OS X, it did not ...
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196 views

USB drive causes “OS X Can't Repair The Disk” error repeatedly

I've got a 2.5" 1 TB external that I've used for a couple years now. Initially it was in an OWC enclosure, and then more recently its in a Sabrent enclosure that I bought off of Amazon to get USB 3.0 ...
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104 views

New drive won't boot internally

So I purchased a new 2TB drive (Samsung model #ST2000LM003) for my 13" MacBook Pro. No issues with the old one, just getting close to capacity. I connected it with a SATA/USB adapter, formatted it, ...
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34 views

Time machine backups

I recently tried to use the time machine backup but in the middle, it had about 15 minutes left...I shut my laptop (on accident). I got freaked out so I unplugged the external hard drive I was using. ...
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Brand new 15in retina

I bought the mac then hooked up Time Machine and started restore to Mac HD. All was fine until the end when the backup from on 6 minutes to go for a couple of hours. No progress at all. So after ...