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

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What kind of encryption does Mac OS X Extended (Journaled, Encrptyed) use?

Since my primary hard disk is encrypted with FileVault2, I also wanted my backup drive to be encrypted. I plugged in my external drive, brought up Disk Utility, and went to erase/format the disk. I ...
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10 views

MacBook Pro only recognizes HDD with back cover off

I replaced my 13" Mid-2012 MBP's optical drive with an SSD the other day, but now I'm having problems with the old HDD that was in there. It booted once or twice after installation with the SSD ...
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17 views

External Hard Drive Locks Finder

Last week there was a short 10 second power outage and my external hard drive was attached to my laptop (Western Digital 750 MB drive). Message came up telling me the drive was improperly removed, I ...
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1answer
23 views

Problems reinstalling OS X Mavericks on Macbook Pro (hard drive displays “locked” and I get “live file system repair is not supported” when repairing)

I'm trying to fix someone's Macbook, and I am a Windows user so I'm having trouble confirming that his hard drive is ruined or unfixable which is what I think is the problem. When you boot it up it ...
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5 views

Invalid Argument when trying to write to external disk

I have an external USB 3 box on my mini (OSXS 10.9.4) that holds 4 drives (not a RAID). When I try to access either of two drives and write data to them, I get "Invalid argument" (the 3rd drive works, ...
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24 views

Yosemite Startup Manager After Downgrading to Mavericks

I downgraded from Yosemite Public Beta to Mavericks by: Created bootable Mavericks USB Booted Mac to the Mavericks USB Went into Disk Utility > Selected HD and Erased HD Restored to Mavericks Time ...
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32 views

Updated to 10.9.5, no longer recognises external hard drive [on hold]

It works in the TV and it worked before the update. Any tips would be appreciated.
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1answer
19 views

dd ruined my USB stick, how do I recover?

I tried to copy a Linux distro over to my USB using DD. But half way through it failed because the computer went to sleep or something. I plugged the USB in and I get a message saying it's unreadable ...
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2answers
34 views

Permanently Disable/Ignore Secondary Disk?

I have a 256G SSD and a 1T HDD in my 27" iMac. The 1T HDD is dying due to hardware failure. Is there a file in OS X similar to /etc/fstab in Linux where I can prevent this 1T HDD from mounting? I'd ...
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1answer
224 views

Moving file between disks in Mac OS X?

Is there any way so when I drag and drop a file from one disk(A) to another disk(B) the files are moved instead of copied? I have a mac book pro and a mac pro(old cool one) and when I drag and drop ...
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16 views

Spinning down hard drives that are not boot drives

If I were to put an ssd in the superdrive of an early 2009 24" iMac and used this as a boot drive while keeping the hdd in it's original place and using as a storage drive, would the storage drive ...
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13 views

MacBook won't boot from internal SSD

I got a 2011 MacBook Pro and had a Samsung 840 Pro installed running Mountain Lion, then Mavericks for about a year without any problems. Without any apparent reason the MBP just wouldn't boot from ...
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18 views

Fixing a failed full disk Core Storage encryption

I selected the encrypt disk option from the Finder initially, but after several days without progress (I checked diskutil cs list and it didn't show that it was either encrypted or converting) I ...
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15 views

Are these unrepairable SSD errors indicative of a SSD hardware error? [migrated]

Some time ago I got an Apple authorised reseller to replace the SSD in my early-2011 model MBP with a Samsung 512GB disk. About three months later, booting failed with this error: Please forgive ...
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2answers
25 views

Move Documents folder to different drive

I would like to move the Documents folder to a different drive. I am running OS X 10.9.4. I am trying to preserve space on my OS SSD.
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1answer
18 views

2012 iMac stuck at grey screen after reinstall, plus the inability to restore from backup prior to this. Please help!

Okay I'm just going to list out what has happened over the past 24 hours: Lost a bunch of files. Tried to restore from backup. After waiting for about an hour, it just randomly stopped at around ...
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1answer
18 views

Inheriting a backup on a server

SO! I've spent 2 days doing this so far and I've gotten so close to accomplishing my goal but I'm on the last step. I've attached my Time Machine HDD to my landlords Mac mini (So I didn't have to ...
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1answer
502 views

Can I Mount a Hard Drive in Mac Pro Tower as Read Only?

I'm trying to recover data from a failed external Fantom RAID Drive enclosure by plugging the drives into a Mac Pro tower, but I'm concerned that OS X might write to the disks and jeopardize the RAID ...
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2answers
1k views

How to set VirtualBox in order to access external hard drives in guest Win7?

I have installed VirtualBox in order to use Windows 7 as guest on a Macbook Air running Mavericks (mainly to be able to use a printer that has no drivers for Mac). Also, I have installed the ...
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2answers
1k views

Finder Reports Disk is Full, Other Tools Don't Account for it

I looked at some of the other Q&A here and didn't see a duplicate of this one (e.g., How can I figure out what's slowly eating my HD space? and other linked and related questions). Finder reports ...
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2answers
29 views

Backing up networked iMacs

I have an iMac connected by wire to an external (non-Mac) hard drive which is used to store back-up images via Time Machine. I want to buy a second iMac and network the two together. As far as I ...
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1answer
17 views

Failing Hard Drive

I have a Mac Pro I got in 2008. The original hard drive is failing. I have purchased a replacement drive and have backed up all my data using Time Machine. I will want to put the Mac OS on the new ...
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2answers
26 views

Does hard disk continue to run while sleeping?

The question is pretty simple. I just wanted to know for sure but couldn't find an answer on google. Does the hard drive continue to "run" while the computer is asleep? I'd like to know if it does ...
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1answer
38 views

How to ignore second hard drive

I have a second hard drive in my macbook pro that is bootable into my older os install after installing a new SSD with a clean build of OSX Mavericks. When booted into my SSD, I want my old drive to ...
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3answers
3k views

How to partition an SSD that fails with error 69888 - couldn't unmount disk?

I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
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3answers
2k views

How can I find and edit my external hard-drive's .fseventsd folder?

While changing my 'file directory' preferences on Vuze, I accidentally created a folder in the .fseventsd-folder on my Seagate external hard-drive. I can't even find the .fseventsd-folder using ...
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1answer
530 views

CoreStorageFamily::unlockVEKs() failed to unwrap the vek, status = e00002bc

I have a filevault2 disk with two partition. One is the boot partition, the other contains data, both are encrypted. Today, after installing the latest 10.8 update (10.8.4 I guess), the computer ...
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1 TB hard drive - with only partition showing only 800 GB capacity

I have a 1 TB hard drive, which is correctly displayed in Disk Utility, but the actual (and only) startup partition only shows 800 GB of space. There is no unallocated space either. According to the ...
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2answers
5k 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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1answer
2k views

Macintosh HD not showing up on disc utility

I am trying to do a clean install on my Macbook Pro 13" from 2011. Here is what I did so far: 1) Booted up on my USB Stick with Mountain Lion Installer mounted on it 2) Opened up Disc Utility and ...
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30 views

/dev/disk0 disappears

On my Macbook Pro mid-2014 (have had it for only a week) I am having an issue where the primary hard drive (at /dev/disk0) just disappears from the system, thus crashing. The only reason I know that ...
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2answers
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Should I put the SSD in the Optical or Main Bay when replacing Optical Drive?

I have 2010 MBP. Wanted to put SSD in optical bay (and use it as main boot drive) because main bay has SMS (motion detection) that HDD would use. The only problem is that optical bay in my computer ...
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44 views

Getting rid of “The disk you inserted was not readable by this computer” message at startup

I have a couple of disks in Windows software mirroring RAID in my system, and when OS X (Mountain Lion) loads, the same message pops up (twice) each time: The disk you inserted was not readable by ...
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3answers
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How much will adding an extra hard drive to my MacBook Pro affect battery performance?

I have a current MacBook Pro 15" i7 2.2Ghz with a 500GB 7200RPM (default) hard drive. I am thinking of replacing both the current hard drive and the superdrive with two Seagate Momentus Hybrid 500 GB ...
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6 views

Cannot mount HDD used in Time Machine

My HDD was working perfectly fine until recently. It began when my mac tried to perform a time machine back up, but it failed saying that the back up directory could not be created. So i restarted my ...
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2answers
3k views

MacBook SSD replacement — sudden motion shock sensor in optical bay?

When looking to upgrade a MacBook Pro with a solid state drive (SSD), one option is to: First, install the SSD instead of the spinning hard disk drive (HDD). Then, install the HDD instead of the ...
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1answer
48 views

Trouble Mounting NTFS drive on OS X 10.9

Mounting NTFS drives works in OS X natively. Mounting drives with fstab is common and can be seen here and here and here. I was able to successfully do it with the following addition to my fstab. ...
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1answer
70 views

Macbook pro 2012 Lagging. Slow bootup - Amazing Hack!

I've left my Macbook pro to sleep with a lot of programs and memory used (probably lot of swap used as well) And when I've waken it up, it started to have 60 s lags then 5-10 seconds of ...
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2answers
781 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
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Airport Extreme 802.11ac Can't See USB HDD

Hardware: Airport Extreme 802.11ac Transcend StoreJet 250GB HDD Belkin 4-port, powered USB hub Configuration: HDD formatted as MS-DOS (FAT32) via Disk Utility HDD connected to USB hub Airport ...
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20 views

Gained space on reformat and restore?

I was killing a Ubuntu partition, and had to do a full reformat to repartition properly. The operation would recover 20GB of space. I then took the following steps: I made a recover disk I backed ...
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1answer
944 views

MacBook Pro won't boot with new hard drive, but a different MacBook Pro will

So here are the details. My friend and I both have 13-inch Mid 2010 MacBook Pro's. Same processor and specs since they were purchased at the same time, but originally had 250 GB hard drives. His hard ...
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17 views

Unable to view files in hard disk after editing /etc/fstab

I have followed a tutorial to make my NTFS formatted HDD editable (now I regret doing so). I have edited fstab using these commands without knowing much what they do. sudo nano /etc/fstab LABEL=NAME ...
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1answer
19 views

How to verify if the MacBook Pro HDD cable is faulty?

Is it possible that I take out the HDD cable and test it with multimeter to see if all wires are connected, etc? Is there a pin diagram for it? The problem: I have this MacBook Pro mid 2009, lat ...
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1answer
76 views

Customize external HDD spindown timeout?

It's possible to enable spinning down of mechanical hard drives using the "Put hard disks to sleep when possible" option in Energy Saver, and it's possible to customize the timeout period with sudo ...
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4answers
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Recovering data off of a dead hard drive

My hard drive died in my macbook and it no longer will start up. It will not mount in an external enclosure but disk utility is still reading that the hard drive is there, and I tried to repair disk ...
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3answers
571 views

New Seagate hard drive freezes MacBook Pro

I have a mid-2009 MacBook Pro 2.53ghz Core 2 Due with 8 Gigs of ram running Mountain Lion. I am attempting to upgrade the hard drive due to running out of space. I picked up a Seagate Momentus 750gb ...
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1answer
26 views

OS X works perfectly fine on external HD but extremely slow with HD on MBP

Things get weird when I replaced my HDD with an SSD since my MacBook Pro (Mid-2012) slowed down horribly. I get beachballs everything I did on my MBP and it was so painful. I thought it was because ...
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1answer
39 views

How to access the internal hard disk with full permissions?

My Mac does not start anymore. The hard disk is stranded :-( Macs and gravity are not good friends. When starting on a backup disk, I manage to see some contents of the internal disk Macintosh HD, ...
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1k views

Restore Recovery HD partition from Yosemite downgrade

I recently got back to Mavericks from Yosemite, everything went fine. As I normally do, I checked my HDD with the Disk Utility and found some trouble, then I boot on recovery mode to fix my HDD. I ...