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

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Macbook Air intermittently can't find startup disk

About six months ago, my Macbook Air started having a strange issue where it would often not be able to find the startup disk, giving me the flashing question mark. Initially, I was convinced the hard ...
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2answers
4k views

Replaced hard drive - trying to do a clean install of OS-X on 2011 Macbook Pro

I've seen plenty of how to's on how to upgrade if you have a working installation of OS-X, however I purchased this macbook used, it needed a hard drive and a keyboard. So I put a new hard drive in ...
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4answers
6k views

I think my HD is failing. Can't backup files from recovery mode. How can I preserve my data?

I'm really worried, and I'm hoping that you guys can help me salvage some files. Here's what happened: This morning I woke my iMac up from sleep, but it was hardly responding. I would click something ...
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1answer
45 views

Permanently disable time machine prompting for external disks

Is it possible to disable time machine prompting when inserting external disks? I use an appliance with SATA disks that regularly formats the disks. Whenever I plug such a disk in I get prompted ...
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2answers
1k views

Samsung EVO 480 *and* stock hard drive not recognised by Snow Leopard installer

A friend of mine came to me with her Macbook Pro 8,3 (17 inch, 2011). The hard drive had failed, and booting into the recovery disk didn't show a working hard drive. I went out and bought her a ...
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1answer
46 views

Is my Macbook too old to edit videos?

I got my Macbook Pro 15" around 2011 to edit videos for my film school. I carried my MacBook around with me using Final Cut Pro 7 with no problem for around 2 years. I stopped editing videos after I ...
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1answer
21 views

How to rename disk indentifier?

I created 5 partitions on my portable-drive via DiskUtility. $ diskutil list disk2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: ...
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26 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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1answer
112 views

Is undoing Yosemite's CoreStorage conversion dangerous?

I tried to make an 8 GB partition on my hard drive so I could make it into a bootable drive, like Recovery HD but without the need to redownload the OS, but for some reason Disk Utility wouldn't let ...
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1answer
40 views

Remove partition and restore the space without erasing

Time ago I split the hard drive (500gb) in two partitions (250 each), now I don't need them anymore, so I have first erased successfully one partition and now I have still the second one (Mac HD 2) ...
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1answer
79 views

Flashing folder icon appeared once after changing Macbook hard drive

About 2 weeks ago, I updated my late 2011 Macbook Pro hard drive to a Crucial MX100 solid state drive. The drive installation and data migration went fine with no issues, but today I found the ...
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116 views

Is my hard drive already dying?

Although everything is working fine with my Macbook Air from Mid-2013, I have a few errors that bother me. Here they are: Onyx says this: The SMART status was not verified because it is not ...
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1answer
4k views

Resizing dual boot partitions in Yosemite

I have a dual boot Macbook Air with Yosemite and Ubuntu. I would like more space on my Ubuntu partition and need to therefore reduce the size of the Mac partition. I assume this will cause some damage ...
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2answers
273 views

Stop sign at boot - new SSD

I've got a mid 2012 MBP 13" in which I inserted a brand new MX100 in the place of the old HDD. I've put the old HDD in a case in the superdrive place and tried to install 10.10 but the install failed. ...
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2answers
4k views

How to upgrade firmware and reperform a Samsung 840 Evo on a Mac

i got one of these Samsung 840 Evo Basic 500GB on an iMac (used externally in a TB case - standalone, not Fusion). I know there's a firmware update out which is already available for Mac users too ...
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1answer
59 views

Replace Recovery HD with a “bootable drive” formatted partition?

A while ago, I had the idea to use the bootable Mac OS X USB drive-making procedure on a hard drive partition, so that I could basically have a version of the “Recovery HD” that doesn’t need to ...
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1answer
111 views

I can't create a second partition in Mac

When I go to my disk utility, my main hard gives me results like this It's showing capacity 499gb but only remaining 10mb. Now please see the second image What's happening with my Mac?
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109 views

After erasing 200 GB I need to repair it using the Recovery HD

I was cleaning my MacBook Pro, erasing all unused files I had on it. After that I decided to erase the free space, so I will have all my files organized and cleaned the "used space". After that I ...
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1answer
827 views

MacBook Pro upgrade to SSD migrating OSX and Bootcamp partitions

I wasn't able to find the info I needed here or on Apple's own forums or via Google, so here goes. I have a MacBook Pro 15" early 2011 model with a 500 GB internal hard disk drive (non-SSD). ...
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1answer
242 views

Why is a hard drive not readable anymore after removing it from the Mac?

I have a mid 2010 27" iMac. Until this evening it had an SSD (primary drive with OS X Mavericks installation on it) and a HDD as second drive. The HDD is a Western Digital I built into the iMac in ...
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1answer
202 views

Why is cp command 4 times slower than copying in Finder in OS X 10.6?

I accidentally stumbled upon this issue: Copying a 119 MB zip file took 4 times longer in Terminal (cp) than in Finder! I copied a file of 119 MB size in Terminal with time cp file.zip file2.zip ...
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1answer
167 views

How to write fstab rules for an NTFS volume if the volume has no LABEL or UUID?

Basically, I was following this tutorial to enable writing to an NTFS Volume (which works when the Volume has a LABEL or UUID). I have an external USB drive with an NTFS volume that doesn't seem to ...
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Is enabling rw in /etc/fstab for an NTFS volume risky?

I've followed this tutorial: http://computers.tutsplus.com/tutorials/quick-tip-how-to-write-to-ntfs-drives-in-os-x-mavericks--cms-21434 I'm not familiar with Mac OS X's NTFS support, having used ...
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1answer
174 views

Mac terminal stop hard drive from spinning

Can I stop hard disk drives from spinning using Terminal? The reason why I want to know is because I have my Mac to backup at midnight however I do not want my HDD to be spinning all the time. I ...
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71 views

Is there a way to manually repair a CoreStorage volume?

I was playing around with CoreStorage on a test disk and used the undocumented commands cs addDisk and cs removeDisk. The addDisk command worked just fine and was able to expand a logical volume ...
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4answers
3k views

How to delete partition disk0s4?

A while ago, I dual booted with ubuntu linux and followed a tutorial on youtube to do so, but later I wanted all of my hard drive to be for osx, so I deleted the ubuntu partition, but now I am left ...
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1answer
58 views

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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1answer
137 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
30 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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1answer
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
14k 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
2k 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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46 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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1answer
4k 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
696 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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31 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
55 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
86 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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1answer
39 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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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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1answer
34 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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2answers
47 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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309 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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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
101 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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1answer
157 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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106 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\ ...