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

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How to Fix Disk Utility Getting Stuck on “Verifying storage system”

Okay, had a brief power outage today that shut down my computer and external drives, so I figured I should run a quick disk check just to be safe. However, when I run try to verify with Disk Utility, ...
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1answer
726 views

Macbook boots up to grey 'prohibited' symbol

I'm having an issue with my '09 13" Macbook Pro. When I boot it up, it seems to be booting normally until about thirty seconds in, when the Apple symbol is replaced with a kind of 'no-smoking' symbol, ...
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6 views

how can we do caching filesystems information in the SSD? [on hold]

We know that SSD has no knowledge of the file system structures, including the list of unused blocks/sectors. What problem will happen SSD with this deficiencies? Have SSD improve the performance if ...
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2answers
19 views

2010 MBP 10.8.2 wont boot, stuck on grey screen spinning wheel,

Pretty please help. Here is the situation Purchased in 2012, no install disk, came with Mountain Lion. Never had any problems with it until a couple weeks ago when it froze when I opened the lid. I ...
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1answer
16 views

I have to repair my external hard drive each time I plug it?

I have a 2009 320GB Toshiba Hard Drive, and every time I plug it to my macbook pro 13inch Retina, I have to go to Disk Utility -> Repair Disk. Why is that? Whats the solution? Please help!!! Thanks
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1answer
23 views

My macbook air wont let me erase my disk?

What the title says. I'm trying to delete all the data off my macbook air. I pressed command+r, went to disk utilities, selected my disk in the slot to the left, went to the erase tab. The "erase" ...
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15 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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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
11 views

Is it possible/a good idea to use an ExpressCard SSD for swap?

I have a 48GB WinTec filemate ExpressCard SSD which I'm not currently using for anything. My idea was that I would re-partition it with a 16GB partition for swap and virtual memory (I have 8GB of ...
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20 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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14 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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2answers
2k 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
259 views

Disk Utility on Mavericks fails because “disk is too small”

I'm on mavericks and I am trying to delete a partition of an external hard drive. This is its schema Partition1: 50GB "MavericksBackup": Bootable backup Partition2: 187GB "Home Data": Absolutely ...
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1answer
4k 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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2answers
1k views

How do I keep the Recovery HD and EFI partitions from automatically mounting on my MacBook Air?

I've set Finder preferences on my MacBook Air running OS X 10.9.1 to show everything on my desktop: I've noticed that storage partitions called Recovery HD and EFI appear there: What are they? ...
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13 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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38 views

Transferring iPhoto to iCloud drive

I have been running out of hard drive space on my older MacBook Air. I decided to free up the 91gb of space that is my iPhoto. (I believe) I moved iPhoto in relatively easy fashion. I drug it from ...
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7 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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2answers
15 views

How do I clone my drive to a external USB drive?

I have CarbonCopyCloner but it cannot see my new SSD in the destination section. The destination drive is a USB-attached SSD. How do I clone to this drive in CarbonCopyCloner?
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1answer
820 views

Disk problems and reinstalling Mavericks!

This started after I installed a BootCamp Windows 8.1 partition. That partition ran out of space so I decided to not heed any warnings and tried to format my Macintosh HD into free space, 10G of free ...
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30 views

Data partly lost or hidden on external disk

I have an external disk connected to MacBook via USB. From time to time the system alerts that the disk is unreadable, but sometimes it seems to connect and I can browse it in Finder, and even open ...
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1answer
1k views

Yosemite Disk Utility: You may only split this volume in two

I just upgraded to 10.10- Yosemite. I have an external 4TB hard drive. These are the problems I see with Disk Utility: No more than two partitions are allowed. Changing the partition size I can ...
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1answer
164 views

MAC OS X refuses to mount the main volume Macintosh HD, saying that there's an “Invalid content in journal”

I have a problem with my MAC. Yesterday it got stuck while it was trying to connect to a Wi-Fi network, then, since it didn't respond I decided to turn it off using the power on/off button ('). When I ...
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1answer
13 views

Can the MacBook boot from a second HDD

If I was to install a SSD in my MacBook Pro (Mid 12) where currently the Superdrive is attached and continue to use the preinstalled HDD for other files, can I run OSX from that new drive? Or in ...
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132 views

How to connect an extra monitor and a thunderbolt (LaCie) harddrive on a MacBook Pro (13" mid 2012)?

I have a 13 inch Mid 2012 MacBook Pro and I want to connect my LaCie Thunderbolt hard drive and my extra 21" Monitor but the MacBook Pro has only one thunderbolt port... How it will be possible ? ...
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1answer
628 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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28 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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23 views

Having trouble mounting a 12TB Raid on Ubuntu Server

I am running a Ubuntu server on my off of my 2008 MacPro, it runs great and works really well except I am not able to run any raid setups directly on it. I have a large library that needs to be ...
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1answer
36 views

Time Machine Changed My External Hard Drive's to MBR and now I can't access it!

On Yosemite, I was using Bootcamp to install Windows on a part of my internal hard drive. When, bootcamp was finished (before booting into Windows), Time Machine popped up and asked me if I wanted to ...
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1answer
67 views

Trouble with my partitions

I have some trouble with my partitions on my Macbook Pro. I created 2 partitions. One named "Yo" where I have installed Yosemite release. Another one named "Save" where I put all the stuffs I need to ...
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1answer
158 views

MacBook updated to OS X Yosemite version 10.10 and experiencing problems with hard drive & iPhoto

I updated my MacBook to OS X Yosemite version 10.10. Everything seems to be fine... apart from: My WD hard drive won't open now - it appears on screen, allows me to enter the password to unlock and ...
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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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1answer
81 views

2011 macbook pro blue screen

I'm trying to determine whether I'm having a ram, drive, or board issue. I used to be able to log in and actually use my laptop but it would run slow and over little time the fan would kick on and ...
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1answer
940 views

Mac Pro hangs at startup showing white screen with spinning pie wheel

MacPro 1,1; lion? startup hard drive failed (with loud buzzing). Removed bad drive, installed replacement, inserted Lion USB drive, verified new drive using the Lion usb drive, started installation ...
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45 views

Option to use airport express with 1 terrabyte harddrive for dropbox equivalent

I have an airport express with a 1 terrabyte harddrive, obviously this airport is connected to the internet and in the next month our house will be conected to the optic fibre network giving us 200 ...
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1answer
25 views

Do I need to keep any cautions in mind when transfering an external SSD into my Macbook?

Hi I am now successfully running my MacbookPro off of a bootable external SSD (which is runnung Yosemite and onto which I cloned my whole system) and I would like to switch it out with the old HDD ...
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1answer
32 views

How can I reclaim the partition's space from this shrunk volume?

I've already reverted the CoreStorage volume. And I've resized my "Macintosh HD" volume (by dragging it) and want to increase the size of my "Yosemite" volume. How do I reclaim the space (in grey) ...
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1answer
54 views

How to recover data from a mac that crash on login?

I have a mac book pro that is crashing everytime I logged in (with every users). The cause may be that my gf put so many pictures and video on the hard drive that it can't even start (from the restore ...
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1answer
325 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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14 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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29 views

Processes writing over 100GB to disk? [duplicate]

My computer just gave me an alert saying that there was no disk space left. I checked About this Mac, and it says that 400GB or so is used up by pictures, which I know is completely incorrect. I have ...
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3answers
355 views

How can I install 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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1answer
37 views

Do I have a Recovery HD?

I replaced my MBPs HDD with an SSD and put the HDD in the optical bay. Since then, I was missing the Recovery HD partition. That was still on Lion Now I have upgraded to Yosemite, and running ...
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1answer
2k views

HD accidentally reformatted to MBR, how to get back to GUID?

So in trying to create an MBR partition of my hard drive which I could then use to boot a solaris-derivative OS using rEFIt, I messed up. Rather than a hard drive with a primary GUID partition map ...
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1answer
1k views

External drives won't mount on restart

One of my staff just got a new Mac mini with the USB 3 ports and Mavericks. It has 2 Seagate GoFlex 3TB hard drives connected: 1 for Time Machine, the other for Dropbox files. When the computer is ...
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64 views

Does iCloud keychain stores FileVault passwords?

My MacBook Air drowned today and it was connected to an external hard drive encrypted with FileVault. I can't remember password for it. Will new Mac sync that password from iCloud or is the encrypted ...
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1answer
646 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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24 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 ...
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3answers
44 views

500gb take up space on my HD, but don't belong to any visible file or folder

I've got a problem: 500gb take up space on my HD, but don't belong to any visible file or folder. This may have something to do with a disk image of 500gb I created and deleted some time ago. Is there ...
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90 views

Disk Utility won't let me create or resize partitions

My MacBook Pro 13" Late 2011 is running Yosemite. I am trying to install a Linux distribution on a partition of my hard drive. I used Disk Utility to resize the main partition on my hard drive and it ...