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

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Will 'Internet Recovery' necessarily erase my hard drive?

My Mac is booting to the 'question mark' folder. I option-booted to 'Internet Recovery'. Before I proceed, I would like to know: Will 'Internet Recovery' necessarily erase my hard drive? Can anyone ...
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2answers
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Compatibility of iMac G3 hard drives, to try to recover data

I have an old iMac 400MHz slot-loading G3 model #M5521 that won't power up (think it's a dead power supply), and I'm trying to get the data off my hard drive. I also happen to have a 333MHz ...
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13 views

How do I change permissions of folders on a hard drive from a booted USB drive

I am trying to save my files on my Hard Drive that has a crashed OS. I created a Bootable USB with Ubuntu and successfully booted. I can see my folders, but I can't actually open them because I don't ...
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1answer
4k views

MacPro Hard Drive 3 TB or Larger formatted to Logical Volume Group by Disk Utility

I have an Intel MacPro in which I recently installed a new internal 3TB hard disk. I attempted to format it in Disk Utility using the standard GUID partition map and encountered a strange problem. ...
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2k views

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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31 views

Two different USB 3 HDD docks - disk partitioned on one not usable on the other

I have two different 3TB SATA hard disks: a Toshiba DT01ACA300 a Seagate ST3000DM001. I also have access to two different USB 3 HDD docks: a Connectland DOCK-CNL-YJK3519-V3+ES a Focus SATA + IDE ...
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53 views

Disk Utility: Invalid Disk Label @ cksum mismatch

I have a WD external hard drive. I've been running the routine tests to make sure all my stuff is safe lately. In Disk Utility, I did Verify Disk on both the disk itself as well as the main partition, ...
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3k views

external hard drive found only by disk utility, cannot eject or mount

I'm using a Seagate GoFlex that seems to have encountered some trouble. The drive does not appear on the desktop or Finder. I've double checked that Finder > Preferences allows for it to appear in ...
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8k views

Macbook Pro really slow since Mavericks

I have a 2010 Macbook pro that is running very slowly (Clicking something takes around 4-5 seconds to react even though no graphical lag is observable) on Mac OS X Mavericks but running really fast ...
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27 views

Why do Apple permissions keep getting messed up?

How come Apple machines will randomly need to have a repair disk permissions done and how are permissions always getting messed up to require this. Is this a design flaw with Apple?
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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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1answer
41 views

Interesting partition Map with missing HD space

I have the latest generation Macbook Pro running Yosemite, I bought this computer used I don't know if the last person attempted to install linux or what the story is but I believe my partition map is ...
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722 views

Boot up error prohibitory sign flashing folder with question mark

3 weeks ago my hard drive failed so I bought a new one. (Macbook pro late 2011) 5 days ago, the new one flashed prohibitory sign, flashing folder with question mark. Every once in a while I could get ...
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2answers
2k 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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2answers
51 views

Mac OS won't install from CD, but Windows will

I had to replace the hard drive in my 2010 21.5" iMac. When I went to install the OS, I rebooted into the OS selection screen (using option). The Mac OS X install disc was there (but my external HD, ...
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1answer
28 views

Why do I have /Volumes/Storage Drive?

In Terminal, I noticed I have /Volumes/Storage Drive. On my mac, I have no drive named Storage Drive. Furthermore, no Storage Drive appears in Finder or Disk Utility. When I cd inside Storage Drive ...
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1answer
29 views

I removed Macintosh HD from backup disk how do I set it back?

I used 2 backup disks , Macintosh HD and Seagate . My macintosh was unable to perform a backup due to lack of space while my Seagate is unable to perform a backup until the first backup is complete. ...
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1answer
806 views

Recover Deleted Files on Mac OSX [External NTFS]

I have accidentally deleted some files on my Mac OS X Mavericks. Actually, I was trying to burn an .img file to my flash drive which was located at /dev/disk1 (at the same time I had connected a NTFS ...
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4answers
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How do I fix my SSD after installing Yosemite and Enabling TRIM? No boot & can't erase

I recently upgraded to Yosemite, enabled FileVault and foolishly enabled TRIM (had no idea it wasn't supported). Upon restart, my machine gets the grey screen with the crossed-out circle of death. ...
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1answer
34 views

Would and SSD or RAM be the better upgrade in this situation?

I feel I'm making this post more for validation than anything, but I want to get some of your opinions as well. My friend contacted me the other day asking how she could make her MacBook Pro run a ...
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2answers
4k 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 ...
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1answer
996 views

How to FW upgrade and reperform a Samsung 840 Evo Basic 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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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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66 views

restoring to mavericks from yosemite, partition disappeared after fail

I have an mbpro 15" with 2 hard disks: Main: SSD with OS Extra: Time machine backups and data For different reasons I wanted to downgrade to Mavericks. I rebooted with cmd+r and went to time machine ...
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1answer
2k views

I can't boot into Windows 7 on Boot Camp

I have a mid-2009 MBP. A couple of years ago I swapped out the optical drive for an SSD, made the original hard drive a Boot Camp partition and installed Windows 7 on it. It has been a brilliant "best ...
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54 views

I keep deleting files but my Macbook Pro hard drive is still full [duplicate]

I have a MacBook Pro (late 2011) with a 500Gb SSD hard drive. Today suddenly it said that my hard drive was full, so I started removing the files. Got rid of lots of Gigas, even the sleepimage file, ...
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1answer
17 views

Can my macbook HDD be used in a windows desktop?

It seems there is a formatting issue / dead hdd in my macbook, as I have the infamous ? despite ensuring a good connection with the sata cable. Is it ok to plug the 2.5" macbook hdd into the standard ...
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1answer
3k 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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1answer
39 views

SSD totally bricked after installing in different laptop

I've never had this issue before: I had an OWC ssd in my 2009 macbook pro, and I put it into a 2008 aluminum macbook. It worked perfectly. Then, I took it out and put it back in my macbook pro, but ...
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2answers
32 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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Macbook pro mid-2010- water damage - but still plays chime?

Hey guys it's been a week since my macbook pro had water leak into it, Im pretty sure something is fried :( But now when I try to boot it up I hear the startup chime, what does this mean? Should I buy ...
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1answer
87 views

Crucial M500 480gb SSD Replacement for stock HDD on Late 2011 MacBook Pro keeps freezing

First, I apologize for the length of this. I want to make sure I get all the facts out so that hopefully I can get some help. There is s TL;DR version below if you don't want the blow-by-blow ...
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2answers
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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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38 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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1answer
149 views

Can't mount (Core Storage) encrypted volume anymore

I use the following setup: SSD: System Internal HDD: Data (Documents, Music, etc.) Both disks are encrypted via the Core Storage utility. It seems I can't mount the "Data" disk anymore. I wanted ...
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1answer
70 views

"You can't resize the partition on this disk because it uses the Master Boot Record partition scheme [duplicate]

I am trying to get rid of one of the volume ("mountain Lion", the second from the top) of the partition of an external hard-drive. In disk utility I get what you can see in the pic, namely it does not ...
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3answers
54 views

Partition problem after HDD to SSD swap

Recently decided to replace my nearly full 500GB HDD with a 1TB SSD to breathe some new life into my mid-2010 Macbook Pro. I used a toaster-style drive cloner (Dyconn Dubbler) to do a sector by sector ...
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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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41 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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1answer
51 views

Time machine deletes old backups when still >2 TB of 3 TB are free

I get messages that my Time Machine backup volume is full and TM has deleted older backups. But my backup target disk is an external 3 TB HD and Finder reports that over 2 TB of it are free (only some ...
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How to clone existing Filevault encrypted HD to SSD with a linux live cd/usb [migrated]

I have a 13-inch, Mid 2012 MacBook pro which comes with a 500 GB sata hard drive. I'm running 10.9.5 Mavericks. Of the 500 GB I have about 77 GB used whereas the rest of it is free space, this drive ...
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1answer
16 views

Log for the root directory of an external HDD

I really doubt that this would be possible, but is there any chance that OS X 10.7.5 logs the root directory contents of an external HDD that was plugged in through a USB drive a week ago? My ...
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2answers
3k 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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How do I get detailed SMART disk information on OS X (Mavericks or later)

I'm trying to get a detailed SMART status report on the drives in my Mac. I'm not talking about "Verified," I'm talking about the detailed report that's about 100 lines long listing all the vital ...
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JDiskReport is damaged, can't be opened

I have tried downloading and running JDiskReport 1.4 a few times now, and after unzipping it and clicking on the executable I get the message: "JDiskReport" is damaged and can't be opened. You ...
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1answer
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What SSD models and brands can I get for my Late 2012 MBP (MacBookPro9.1) that Yosemite supports?

I've read that only the OWC one supports this but then again some people claim it's bogus. So I was wondering what SSD brand and models I can get to upgrade my Late 2012 MBP that when I upgrade to ...
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1answer
22 views

Hard drive renamed after restart, apps can't see it

I shutdown my computer when I left work and when I got home turned it back on. When it booted back up the second drive (in the dvd drive bay) had a strange name like A[]\tr/sj or something like that. ...
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39 views

I want to add a 5TB HD (NTFS) to my time capsule and have access to it from both my Mac and my PC's

I want to add a 5TB HD (NTFS) to my time capsule. I have both Mac and PC's and will like to access the drive from both. I can see that the drive is attached in airport utility on my windows pc but I ...
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Macbook Pro 13" HDD cables going bad

I have a user at my institution who has had 4 HDD cables go bad since May, 3 times in her laptop and once in a loaner we provided. Both are the same model, Macbook Pro 13" unibody. I'm starting to ...
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SSD w/ brand new clean in stall of Yosemite fails to boot

I've just installed a new version of Yosemite on a third party SSD (Crucial). When I boot it up it hangs on a gray screen. Steps that got me here: Connect SSD to Macbook Pro (with existing HD) ...