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

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GPT looks valid. Diskutil sees empty disk

External 3 TB disk. Stopped working after a power bump. GPT reports as follows: bash-3.2# gpt show /dev/disk6 start size index contents 0 1 PMBR ...
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122 views

Dual hard drive setup in early 2011 MacBook Pro 17" (replacing optical drive with HDD)

I have an early-2011 MacBook Pro running OS X 10.10.2 (also Windows 7 Professional on a Boot Camp partition), and recently upgraded my hard drive to a 500GB SSD (Crucial MX100). The speed is amazing, ...
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1answer
26 views

Delete Xcode shared folder

Can I delete the Developer > Xcode > Shared folder? I want to clear out space and noticed that it takes up 2 gigs of data. Is it safe to delete? I use Xcode often.
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28 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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44 views

What takes so much space in my external disk?

My external disk (LaCie) is full! When I look at the individual folders within my disk, I see that only little space is occupied by visible documents. So I displayed the hidden files and found small ...
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1answer
3k views

Fresh Install OSX on new hard drive without the .dmg (iso) file

Today is the day my hard drive failed. My issue now is to install OSX (Mavericks) I have purchased to the new HDD. I have neither a DVD installer nor an iso file nor another Mac Device (but I could ...
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3answers
13k views

How can I ensure TRIM is enabled when installing Yosemite onto an SSD drive?

Im going to update my mid 2010 13" MacBook Pro to an SSD drive (Samsund 840 250 GB). I am currently running Yosemite on my old HHD drive and was simply going to make a bootable USB with Yosemite on it ...
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3answers
681 views

How do I get an operating system onto a new hard drive?

I will be installing a new 500GB hard drive in my macbook. It is a late 2008, aluminum, 13-inch screen. Once I install it, how do I get an operating system that's 10.7 or newer (downloaded from the ...
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43 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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3k views

External HDD can be seen in Disk Utility but not in Finder

I've been using my external HDD a lot of times before on my Macbook Pro 13" OS X version 10.9.5, but it doesn't seem to appear in my Finder anymore. It can be seen in Disk Utility, though. Can anyone ...
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3answers
4k views

partition map check failed because no slices were found

I own an early 2011 MacBook Pro running Mac OS X Mavericks. Recently, I tried to make 50 GB partition using Disk Utility but the whole process didn't complete, and I had to restart the system as it ...
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2answers
585 views

need help with ipod classic hard drive diagnosis

I've started diagnosis mode on my ipod classic and went to SMART DATA. It showed me this on the screen: Retracts: 58 Reallocs: 16376 Pending Sectors: 0 PowerOn Hours: 643 Start/Stops: 8781 Temp ...
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22 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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1answer
54 views

Mac Encrypted HDD Please help!

Hi everyone I have encrypted a partition of an external hard drive from the mac desktop. I pressed that key button then pressed memorable and it changed my entire password unknowingly. I need help. ...
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1answer
304 views

Implications of using a USB SSD drive to run VM images off

I'm running VMware Fusion on my Apple Macbook Pro (15 inch, Mid 2012, OSX 10.10.2), and have several VM images that are stored on an external USB3 disk (WD Passport). The external disk is fine for ...
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1answer
70 views

Flashing question mark, low hard drive space

When I booted my Mac last night I got a flashing folder against a gray background. The computer started fine this morning, but when I closed the lid and opened it up again I had to reboot, and now ...
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38 views

Data recovery after interrupted partitioning

My MacBook Pro was working fine until my friend stopped the Disk Utility from partitioning and force quit the application. Ever since it seems that the problem has grown larger and larger as I used ...
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23 views

iMac Time Machine HDD and Internal HDD failed at same time

My 2008 iMac, which has been extremely reliable for several years now, began to show the spinning 'beach ball' one day, and then would become unresponsive. After a couple of forced reboots, the ...
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33 views

Prevent Mavericks from generating new volume name for external drive

I have an external HDD, formatted exFAT, I believe. Whenever it is re-mounted, it gets assigned a new volume name (e.g., "MyVolume", "MyVolume 1", "MyVolume 2"...). As far as I can tell, this happens ...
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42 views

/Volumes/external_drive folder not being removed

I have a 2TB external HDD, formatted using exFAT. It seems that, even after I eject the disk, the mount point remains in /Volumes. Thus, every time I plug the drive in, a new mount point gets created ...
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1answer
191 views

What is the recommended partition scheme for mac os x?

I did a clean install of yosemite on my MacBook Pro. I have not partitioned my hard drive and have left everything by default. I would however like to use the recommended schematic for Linux systems ...
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34 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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2answers
81 views

Negotiated link speed considerations for SSD choice?

If my negotiated link speed is 3 GB (instead of 6 GB), does this still mean I'm using SATA III on my early 2011 Macbook Pro 17-inch laptop? I ask because I'm currently upgrading my HDD with an SSD ...
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784 views

“Couldn’t create temporary file.” error when erasing free space on external disk

I was trying to wipe the free space of an external USB 3.0 disk in OS X (Yosemite) disk utility. However, I receive the following error: EDIT: The disk is formatted as GUID / Mac OS Extended ...
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129 views

Macintosh HD disappeared from finder after “disk damaged and cannot be repaired”

I have a MacPro 13.3 Inch mid2011 with 500GB storage and recently while performing a Mac update, it froze and was still stuck on a grey screen even after multiple restart attempts. I finally tried ...
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72 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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2answers
57 views

Can I safely use my MacBook Pro HDD late 2011 with a late 2009?

I have a GPU issue with my MacBook Pro late 2011 which requires 3 weeks in repair (until the required parts come in). I took out the hard drive and put it in an external casing. Can I safely use this ...
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28 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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547 views

Issues putting a hard drive in the optical bay of my early 2011 MacBook Pro

I'm asking for help for my brother! I recently switched over to a dual hard-drive setup, and it worked perfectly. However, my brother is having issues. First off, here is the hard drive we are ...
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60 views

Limit hard drive i/o usage by one process (Dropbox)

I'm using only 5% of 1TB given by Dropbox and it regularly chokes my Mac Mini's HDD by "Downloading file list" too often. I think it's just a poor performance (it started since the last Dropbox ...
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1answer
599 views

Can VirtualBox prevent Mac OS X Yosemite to boot properly?

After a few days of good experience with Yosemite, my Macbook pro cannot boot anymore. After 30 or 40% of boot, it just restarts. Here are what I did to fix it: Booting to single-user, runnign fsck ...
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1answer
36 views

How to setup and backup in Time Machine when there is only one hard drive showing?

then other window open which shows internet written their and they says no airpot found searching for it....!2 and if i go to disk utility there is only one hard drive shows "machinetosh hd"!2 i ...
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64 views

Late 2008 Apple Aluminium MacBook complete reinstall [duplicate]

I have a pretty old Aluminum Macbook (late 2008). I pretty much have the original MacOS installation, continuously upgraded to Mac OS Yosemite. Nowadays, it is kind of hard to get by with 250 GB of ...
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171 views

Disk utility damaged or incomplete! [closed]

I just bought macbook pro os x Yosemite yesterday band new. I have been transferring files from windows to mac whole day then i wanted to make some changes in folder and i come to know that my disk ...
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245 views

On Macbook Pro, how to tell if my hard drive access speed is a bottleneck to my current computer performance?

I'm considering giving my 2010 Macbook Pro an upgrade. Whether upgrading its 500 GB hard drive to SSD drive is a priority depends on how much it bottlenecks the computer's performance. Is there a ...
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1answer
8k views

Attempting to revert to Mac OS X Mavericks, now can't get out of OS X Utilities!

Here is my situation: I have an MBP Retina 2013 with an SSD drive which I ran with Mavericks with no problems for about almost a year now. I recently upgraded to Yosemite which seemed to work well ...
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Is it safe to delete ~/Library/Caches?

Is it safe to delete the file Caches, in the Library of the Mac OS X Hard Drive? It's a pretty big file, 3.56 GB, Caches reminds me of logs i don't need or browser cookies. Is it safe to delete the ...
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24 views

Clone hard disk of old macbook to new macbook?

I have a MacBook mid 2014 with Yosemite on it. If I buy a new MacBook, can I clone the disk from the old MacBook to the new one and have it boot up just like if it was the old one?
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44 views

Created a second OS X partition, erased the first, now can't delete old partition

I bought a secondhand macbook pro (early 2011). It was running Yosemite, but I wanted to do a fresh install, as initially I didn't have the password. I created a 2nd partition and installed a clean ...
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23k views

OS X Yosemite installation error: File system verify or repair failed

My Mac has been running fine until I decided to upgrade to OS X 10.10, Yosemite. When it is installing I get the message: File system verify or repair failed. I clicked the restart option to ...
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2k views

How can change hard disk name (not partition)

The title is self-explained: I want to change the hard disk name (not the partition). I am not able to do it with Disk Utility. Any solutions? I'm on Yosemite
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220 views

How to synchronize contents of two external drives?

I have two external hard drives (ExFAT formatted) which I need to keep in sync. Specifically, drive B must mirror the contents of drive A and drive A must not be modified. How can I do this without ...
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4answers
2k views

Why does RAID 1 “Mirroring not provide performance improvements”?

I have always used Software RAIDs, either Apple-provided, or via SoftRAID, etc. I am about to re-zhuzh my arrays and decided to do a little research beforehand… and On Apple's site, there is a ...
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1answer
112 views

What is the largest hard drive a Mac Pro 3,1 (early 2008) will support?

What is the largest internal hard drive a Mac Pro 3,1 (early 2008) can support? I read here that it's around 1.2 TBs is that correct? Also I plan to run Proxmox on it, not Mac OS X (well, I might ...
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256 views

Orphaned inodes in SSD in MacBook Pro Early 2011

I have a Macbook Pro 15″ Early 2011. Last year I changed the disk to put a new Samsung SSD (Evo). Recently my computer was really slow. I rebooted on the recovery partition, and tested my disk with ...
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34k views

Blinking question mark on folder on boot

I am attempting to boot up my 2009 MacBook Pro, but when it starts it immediately shows a white screen with a 'question mark folder' — it keeps blinking until the computer shuts down (unless I keep it ...
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22 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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1answer
50 views

USB drive works only in one port

I have an old Kingston 2 GB USB flash drive. I believe it was bought in 2006. When I plug it into the right hand side USB port of a 2012 retina MacBook Pro, nothing happens. When I plug it into the ...
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2answers
231 views

Hard drive died, how do I get the OS X on new hard drive?

I have a huge problem. My hard disk seems to be dead. I did a lot of things but I guess it's really gone. The thing is that I don't have CDs o DVDs of the OS X Lion (it's a macbook pro A1278 bought in ...
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56 views

remove old drive from Time Machine backup

My old HDD died, I restored data to a new one, but now I have two versions of backup: new and old The name was MyVolume, in Time Machine I have now MyVolume and MyVolume1 I already tried tmutil ...