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

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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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27 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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47 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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61 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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21 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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29 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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28 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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13 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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86 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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96 views

Why does my hard disk (in MBP optical caddy) keep unmounting when writing?

I replaced the optical drive in a 15" Macbook Pro (late 2011) with a new 2TB Samsung HDD in a caddy tray. It formatted fine and Disk Utility says it's OK. The problem occurs when I try to copy a ...
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76 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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16 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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69 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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155 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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91 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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60 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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27 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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18 views

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 ...
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15 views

jet-drive expansion card full with duplicate files like startup disks, how to prevent?

MBP retina 2014 Mid yr 13" w/ Yosemite , Start up disks were saying they were full within one week so I bought jet-drive expansion card and it keeps filling up with duplicate files just like Mac does, ...
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246 views

MacBook Pro won’t boot up after putting the bottom case screws back in place

I'm kind new in this world of Apple, and I have an Intel-based Mac that suddenly had the hard drive fail. So I make a Mac OS X USB flash drive, and realize that the old hard drive died since “Disk ...
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29 views

BBoD even after fresh install to new HDD

Got a bit of a weird issue which is driving me nuts, i have a Mac Pro tower which was purchased around 2010, it has been in storage for the past 2 years. Anyway I recently hooked it all up and found ...
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53 views

Internal HDD works with pc but not mac. MBP

I had bootcamped win 7 on my mac a while back until one fateful night I was hit with a bluescreen. When I attempted to restart I received a no drive recognized error. Since then I have done everything ...
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43 views

Dying iMac drive, emergency repair assistance

I have a older 27" iMac ( 2011 ) and the hard drive is on its way out in a serious manner, ( smart status failing, io error every few seconds in much kernel log , speed of io is the worst I have ever ...
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43 views

Motu 828 firewire with Maverick

I've upgraded to 10.9 and now my motu 828 firewire is not being recognized. What can I do to not loose my interface?
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65 views

In MBP, SSD can only be used to boot by USB, not as an internal drive

I have a Macbook 17" (early 2011) and I recently upgraded the default HDD to an SSD. This worked for a couple weeks but then I started getting a folder with a question mark on it during boot and the ...
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346 views

Why can I not create a directory on my external hard-drive?

When I try to make a new directory on my external hard-drive I get a message saying that it is a "Read-only file system" LU06296APPLE:~ fortinok$ mkdir /Volumes/Seagate\ Backup\ Plus\ ...
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68 views

Would a snapped IR sensor ribbon on a A1181 macbook stop the macbook from booting?

Would a snapped IR sensor ribbon on a A1181 macbook stop the macbook from booting? I was replacing a sata hard drive cable in macbook and the IR sensor snapped and I am still having very odd hard ...
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23 views

How many files are on my HFS drive?

Is there a quick and easy way to tell about how many files I have on a given HFS+ formatted hard drive? On Unix, I use df -i, but HFS+ apparently doesn't use inodes and returns a silly answer based ...
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59 views

ipod classic 160gb

I need help. I am literally at my wits end. I've had my 160GB IPOD A1238, Model number 2173. for just under a year. No I don't have the receipt because I expected Apple products to be quality. I am ...
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57 views

Change write permissions on internal HD outside of OS

I have a late 2009 iMac with a 1TB internal HD. I am unable to boot the OS however when running disk utility, through target boot and booting into an external HD, I am unable to repair, erase, ...
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103 views

Missing hard disk space

I'm trying to figure out where my missing hard disk space is going. I'm using du and df from the command line and there seems to be a clear discrepancy. So here's the du output: $ sudo du -h -d 1 / ...
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63 views

DriveDx shutdown count is very high

DriveDx claims that there have been 2051 power cycles on my Fusion SSD in 17 months. For the Fusion Hard drive part it claims 6402 power cycles count. SSD power on time has been 12250 hours and ...
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37 views

Best overall hard drive for a macbook pro 15" mid-2010

I am not up to date with all the specification. How does something like this look? ...
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465 views

WD My Book Media shows up in diskutil, but doesn't mount or show up in Disk Utility

Initially this drive was connected (via FireWire) to my wife's Mac (still running OS X 10.7), but she it would not mount any more and she asked me to look at it. After reading suggestions on-line, I ...
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52 views

How can I have 128 GB HARD disk and there is 300.91 GB apps on it?

After I install pes2014 on my MacBookAir when I see the storage of my My macintosh HD Is foul. Is it a virus? What should I do?(before it my apps was up to 60 GB) It may be helpful that the pes is ...
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190 views

Mac recovery problem

So I was running Yosemite and I wanted to try to install the windows 10 tech preview. I backed up all of my files and downloaded windows tech preview. I tested it in a virtual machine and it worked ...
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125 views

BootcacheControl.playlist not found, MacBook does not boot anymore

Booting a MacBook with Snow Leopard installed will suddenly stop with the message: Unable to open /var/db/BootCache.playlist: 2 No such file or directory Booting in single-user mode, I can see ...
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593 views

Drive name red in Disk Utility: Core Storage Drive offline. How to bring back?

Yesterday, my mac wouldn't boot up. When I restarted, I could get the whole way to the User login screen. No matter what user I chose, the boot bar would get about 1/3 way finished and I would get ...
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173 views

Yosemite upgrade and corrupt external partitioned hard drive?

I upgraded to Yosemite and shortly afterward mybook hard drive 1.5tb fat formatted failed to work. All I was doing was playing itunes songs stored on the partitioned hard drive. I then tried to verify ...
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42 views

Trying to Partition My Macbook from mid 2009 running osx 10.5.8 to partition 10GB

Ive been trying to partition my hard drive for a very long time and the only time it will work is when i partition a 1 gb section i want a 10 gb section. My total hard drive space is 111.3 GB and i ...
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145 views

Macbook Pro OS X 10.9 Partition problem

So I bought a MacBook Pro mid-2009 with Mavericks installed (post-leasing) and this is my first MacBook. The HD was partitioned in three partitions C, D, E - I didn't want that, so I read a little, ...
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74 views

Newbrand Mac with Yomsemite, 1TB HDD, limited to two partition

I just bought a new Mac , i started to make few partitions as i used to do in the past. I noticed i am not able to have more than two partition :( It says : "you may only split this partition into ...
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265 views

seagate harddrive won't show in finder, appears in disk utility, can't mount

My hard drive seems shows up in disk utility but not in finder. All my finder preferences are set correctly. The partition does not seem to want to mount. Here are the errors found in the console ...
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482 views

Can't mount Macintosh HD volume - invalid content in journal

my 2TB external HHD has decided to fail to mount with the error "invalid content in journal" so i removed the journal using the terminal and tried to mount it - still fails ran verify disk on the ...
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25 views

Time machine troubles

I have 2 time machine backups on two different hard drives. One drive is formatted non case sensitive, and the other is formatted case-sensitive. I recently bought a 3rd drive, that I wanted to put ...
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79 views

Put only HD to sleep when possible, without putting SSD to sleep. Its possible?

Can I put only HD to sleep when possible, without putting SSD (inserted in superdrive slot) to sleep? (surfing on some forums I read that some problems may arise with SSD stop mode)
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148 views

MacBook HDD - keys out of order and disk full error

I have MacBook late 2008 10.6.8 120GB HDD. Lately its been kernel panicing once a week and last panic was really bad. After panic, i booted and verbose log says this: checking catalog file keys out ...
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142 views

External HD Accidentally pulled out of computer

A few days ago I accidentally pulled my WD MyBook 1110 Media external HD out of the USB connection on my Macbook Pro. I have tried to repair the HD with Disk Utility, but the 'Repair Disk' option is ...
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31 views

Help With Lacie External Drive for Mac with TWO Users

My husband and I have one MacBook Pro but we each operate our own 'side' of the computer (as separate users). We are now out of space on our computer so I'm trying to copy over files from BOTH sides. ...
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56 views

change ddrescue log?

I am currently rescuing a 320 GB hard drive by using the ddrescue command on the mac terminal. The hdd is running hot very quickly, so I have to put it outside in the cold before I can go on, but it ...