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

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“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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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 ...
2
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1answer
9 views

Late 2011 MacBook Pro HDD corrupted files and bad blocks. Find command running for 48h?

Computer: Late 2011 MacBook Pro 13" Factory 500 GB serial ATA (5400 RPM) HDD Problem: A few days ago my computer started running extremely slow — could barely perform the most basic functions ...
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2answers
3k 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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1answer
1k 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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1answer
13 views

Disk structure error reported in Onyx but not fixable via the Disk Utility in Recovery Mode

On Yosemite 10.10 Onyx returns the following error: Error: -69845: File system verify or repair failed Underlying error: 8: POSIX reports: Exec format error The disk needs to be repaired. I ...
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1answer
1k 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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3answers
15k 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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1answer
14 views

Disk issues on reboot [duplicate]

I have a rMBP (Mid 2012) that is having disk issues. When verifying the disk, I get three different errors: Incorrect number of file hard links Invalid first link in hard link chain Invalid ...
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0answers
18 views

Prohibitory sign on Mac startup running Yosemite

I used disk utility today on my MacBook Pro running Yosemite to create a bootable USB. I don't recall touching the hard drive of my MacBook Pro at all. After I finished the process, I went onto Google ...
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1answer
20 views

How can I read/write to several hard drives created on windows 7,8 from OS X

My PC's hard drive - running w8.1- crashed. Bought a mac mini and now trying to retrieve files from crashed disk (and others). All drives have read only permissions, with no locks showing in the get ...
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1answer
2k 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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0answers
11 views

Move single user Time Machine backup drive to OS X Server

I have an external hard drive which is currently used as a Time Machine backup drive for a single machine. I'd like to move the drive to my Server machine and use it for network backups for all my ...
0
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1answer
3k views

How can I browse the hard disk attached to my Airport Extreme from my iPhone?

I have a gen 5 AEBS which has a total of 3 HFS+ partitions across 2 USB hard drives (USB hub in the middle). On my Macbook Pro Retina, I can see all 3 HFS+ partition in the Finder. Finder shows the ...
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0answers
17 views

HD corruption - OS X partition now thinks it's FAT

Well, I've got myself in a bit of a pickle here. I have been trying to do creative (unsupported, of course :^) things with my rMBP. I had been using multiple partitions successfully with OS X 10.9.5 ...
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1answer
18 views

Backing up Macintosh HD via Disk Utility (error -5344)

I am trying to backup the Macintosh HD, to my external hard drive via disk utility. I created a blank image and tried to restored my MacintoshHD to that image, but the error pops up, "Restore Failure: ...
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1answer
63 views

Macbook SSD Formatting Problem

I just got my Macbook here, and I got a USB with Yosemite 10.10. I opened up the Macbook, took out the old one, and put the SSD inside. My SSD fits perfectly (Samsung SSD 850 EVO 250GB). Then I ...
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1answer
3k 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 ...
0
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1answer
13 views

System Formatter Failed While Erasing External Hard Drive Mac

I have been trying to erase my external Hard Drive "My Passport", however there was a problem and then the Hard Drive disappeared from the Desktop and could't be found. Only Disk Utility would see it ...
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0answers
18 views

Mac OS crashed! Need help extracting backed up data

I have disk image file on my external HDD. I tried to extract file from mac.dmg file using 7z x mac.dmg and this is what I got: Processing archive: mac.dmg Extracting 0.MBR Extracting 1.Type EE ...
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0answers
30 views

Boot stuck at Prohibitory screen

I'm using Macbook Pro 2012 running Mac OS X 10.10.3 and earlier today, I was trying to install Linux on a USB drive through Terminal. I first converted the format with this: hdiutil convert -format ...
2
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1answer
374 views

Configuring SSD over-provisioning on Mac OSX

I'm in early investigation stages of adding a SSD drive to my MacPro. Fragmentation problems can lead to serious performance problems on an SSD. There are a couple answers to this problem: TRIM - ...
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0answers
12 views

Want to copy whole data disk to ~/Backup/ and then eject, but having trouble finding the disk

I'm trying to write a script that searches for a disk in the external drive, if present have it rip the disk into a folder with the disks name and then eject, then continue searching for that disk. ...
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0answers
21 views

Upgrading Mac HD to OWC SSD for a MBP i5 Mid 2012 9,2 . Is Time Machine enough?

The SSD is yet to be delivered but I have already created a bootable USB install of OS X (yosemite) and have done a time machine back up. The question that is haunting me is - Do I need the ...
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1answer
18 views

Replaced OWC Mercury Accelsior E2 that I am using as a start up disk and it keeps disappearing

OWC replaced my Mercury Accelsior E2 because it stopped being recognized on my computer. They said the old one checked out ok even though I did their tests at home before I sent it in. When trying to ...
0
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1answer
33 views

Hard Drive Change SSD - Macbook Pro

My Macbook was slow, and then i've want to make it faster, it is a Macbook Pro from 2011 or 2012, can't remember it. I bought a Samsung SSD 850 EVO. Firstly what i did, was to take out the old ...
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1answer
2k views

Can I plug my Iomega hard drive into my new BT Home Hub and access the tunes stored in it from my MacBook Pro wirelessly?

We have just acquired a BT home Hub router which has a USB socket. I have my music stored in an Iomega hard drive and normally plug this into the MacBook, which is a bit clumsy. ( I have told iTunes ...
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2answers
23 views

Seagate expansion drive 2TB not recognized on windows after mac

After i connected my seagate expansion drive to my macbook air, it opened normally as far as i remember But now if i'm connecting it on windows 7, it shows that driver installation and the option ...
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0answers
36 views

kernel_task filling up disk

Something weird just happened. I got a warning that my disk was running out of space. I knew that it had like 15GB free before and wondered where all the free space went. I checked Activity Monitor ...
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1answer
35 views

My 2011 Macbook Pro won't start - folder with blinking '?'

My Mac will not start up. I went to recovery mode and made a backup of everything on an external drive. Now the Mac only starts up from the external drive. I have OS X 10.10, Yosemite. I tried to ...
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1answer
23 views

Logical Volume Group “Available Space”

Can anyone help explain why there is 17gb worth of free space on my LVG I can't seem to do anything with this space. Is there anyway to fix this? I have already reformatted the disk then cloned the ...
2
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1answer
250 views

Erasing and Partitioning Hard Drive from Internet Recovery

My MacBook Pro (mid 2012) was encrypted and running Yosemite 10.10.3. (The last update with Photos ruined it.) Yesterday, all of a sudden, everything freezes. I forced Shut Down and since then, it´s ...
0
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1answer
12 views

Repartition 2 back to 1 [closed]

I have a mac drive in 2 partitions. Top half is non boot-able. Bottom half is the boot-able half. Is it possible to repartition the drive into one boot drive without destroying the Boot half?
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2answers
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
7k 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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2answers
26 views

AppleScript for Dropbox on External HD

Disclaimer: I don't know much AppleScript, but I am a bit of a programmer, so you can go a little technical on me. I am looking for a solution to the issue of putting Dropbox on an external HD. ...
0
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1answer
15 views

Airport Extreme: Macbooks cannot connect to disk drive over wifi; LAN iMac can

Just bought an Airport Extreme. Connected a LaCie 2To hddrive (usb 2). I have set up the drive without issue and can indeed see it in the Finder and browse through the files via my iMac (which ...
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1answer
6k views

Mac boots into log on screen quickly but takes long time to log into account

I just replaced the stock OEM hard drive on my 2010 macbook pro 15 inch with a Samsung 840 Pro SSD 256GB and installed Yosemite on it from scratch with USB (the first time i am using Yosemite). Now ...
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1answer
64 views

No NTFS Access Using Paragon and Tuxera in Yosemite

I earlier used OSXFuse/NTFS-3G method to access my Bootcamp Windows partition and my portable drive while using Mavericks. Recently when I upgraded to Yosemite I noticed that NTFS read/write access ...
2
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1answer
73 views

Accidentally used dd on my main OSX drive

I've made a bit of a balls up... When attempting to create a bootable Ubuntu usb drive I accidentally ran dd on my main system drive :( sudo dd if=/path/to/image.img of=/dev/rdisk1 bs=1m I ...
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0answers
10 views

macbook air 2011 13 inch is still freezing after motherboard change after 3 changes the motherboard is fried

so my macbook air 2011 was freezing and one time i open it and it wont open and would stay on the grey screen no apple logo and the keyboard i take it to be fixed and i change the motherboard but ...
2
votes
2answers
5k 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 ...
0
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1answer
43 views

Disk Utility Weirdness: Macintosh HD Cannot Be Repaired But Then Has No Problems?

Earlier today, I decided to clean up my hard drive of extraneous files and other materials that might be taking up space. After doing some looking around, I found an application, OnyX, that was ...
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2answers
35k views

What are next steps when fsck reports “could not be repaired after 3 attempts”?

My Mac Book Pro 13.-" doesn´t get past the grey booting screen with the apple and the spinning wheel (The loading bar appears but when it´s done nothing happens) I have 220 GB in one single ...
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3answers
53 views

How can I find out what is taking up space on my hard drive? [duplicate]

I have a tiny hard drive - 128 GB. I am not that technical. I see that other files under storage is taking up say 40 GB of space. My boyfriend got me a WD NAS hard drive and I was able to move my ...
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1answer
44 views

Mac OS is reporting bad free space

I have a MacBook Pro since 2014 and I haven't had any problem in these months. But today I realized that the free space info that gives Mac is wrong. I add two captures, one from the hard disk info, ...
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1answer
40 views

MacBook Pro HDD won't show in Windows

I've got to send my MBP in for the infamous GPU problem (2011-2013 models) and I would like to back up or at least gain access to my HDD to save some important-ish files. I've hooked the drive up to ...
6
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3answers
25k views

how can I delete a partition (coreStorage logical volume?) from the Terminal?

I finally understood why Disk Utility will not change the partitions on my HDD, even though I added the most recent one myself (maybe significant: to test Yosemite DP) with it. Now I see it says it ...
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1answer
49 views

How much faster is an external SSD than external HDD if internal drive is SSD?

I'm running intensive animation software and am having speed issues. At the moment I'm just working from an internal SSD. How much faster should it run if I put the project files on an external HDD? ...
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0answers
22 views

SSD partitioning fails internally, external OK

I bought a Samsung SSD 850 EVO 250GB for my MacBook Pro 13'' Early 2011, but am unable to install OS X to it. (Yosemite 10.10.3) When installing the SSD internally, OS X doesn't find the drive, and ...