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

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4
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1answer
690 views

how to fix GUID hard drive corrupted to MBR

I am on OS X 10.9.5 with a late 2013 iMac. I have a 3TB hard drive that has an unusual problem. It is a Western Digital 3TB Red WD30EFRX. I formatted it with two partitions, both 1.5TB. One was a ...
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5answers
3k views

Where can I buy the four hard drive screws for my MacBook Pro 2011 15" (pic)

I'm trying to find four replacement mounting screws for the 2.5" hard drive in my MacBook Pro 2011 15". Here's a pic of the four screws (one attached to hard drive). I tried Googling and can't find ...
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0answers
8 views

Time Machine backup from new upgrade [duplicate]

I recently wiped and upgraded my computer to El Capitan, and previously I used MyPassport for Mac to backup my information on TimeMachine from my Yosemite account. Now that my computer is wiped and ...
1
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1answer
17k views

External Seagate Hard drive for Mac - Compatibility

I am looking to purchase a Seagate External Hard Drive for my MacBook Air. The products claims it works only with PC (windows), however, I have read multiple places that I can just format the drive ...
3
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0answers
22 views

2 Disks with the same name, how do I delete one?

I initially boot-camped a disk into a windows partition, and wanted to delete it. Initially I thought formatting it to free space would work, but it didn't. I tried again and accidentally formatted it ...
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0answers
12 views

Why are extenal HDDs attached to my TimeCapsule shown as empty?

I have attached an external USB HDD to my TimeCapsule. The disk is HFS+ formatted and contains some 100GB of data. When I mount this disk on my Mac, via the TimeCapsule, it shows up as empty. When I ...
0
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0answers
29 views

Why is my iMac (late 2013) HDD so slow?

My iMac's hard disk has been slow from the start. But recently it is becoming unbearable. Disk read and write speeds are consistently below 50 MB per second, without any applications producing any CPU ...
0
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1answer
68 views

How to move my Photos library to internal drive to use iCloud Optimize space feature

I recently finally imported my photo library into Photos from iPhoto. I have my library stored on an external drive since my internal 256gb has been full for awhile. Now that it's in Photos, I went ...
0
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1answer
31k views

White MacBook hangs at gray Apple screen forever, won't boot to single user, won't mount using Disk Utility. What do I do next?

After a forced shutdown, my white MacBook hangs at the gray screen with the Apple logo and an infinitely spinning progress wheel. I can boot in verbose mode, but I didn't see any particular error, ...
0
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1answer
353 views

External disk - Unrecognized file system (-69846)

I have an external storage with 2TB that was working nicely. But since last week, when I unplugged the USB before eject it, the disk is not readable anymore. When I insert USB, I can actually see ...
1
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4answers
7k views

How to recover data from MacBook which won't startup properly?

My 2012 MacBook Pro running OS X 10.7 Lion would not start up properly (it has the doomed flashing white question mark on a grey folder). I have tried the following: couldn't access Safe Mode; holding ...
3
votes
2answers
218 views

Setting Up Raid iMac

I have one lacie 2big thunderbolt 4th unit setup as raid 1. I want to add a lacie 2big thunderbolt 4th unit. How do I get it set up so the entire unit 1 is mirrored onto unit 2(Raid1)?
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0answers
35 views

Time Machine Partition gone from external hard drive, can't repartition

I've got a 1TB external drive which used to have two partitions: One formatted in NTFS to share files between Mac and Windows, and one for Time Machine Backups. I haven't used it in quite some time. ...
2
votes
0answers
64 views

Why my Mac is showing only 250 GB out of 500 GB?

I have MacBook Pro (13-inch, Mid 2012) It comes with a 500 GB hard but today when I checked it it's only showing 250 GB. Please tell me why is that? Macintosh HD: Available: 81.57 GB ...
0
votes
1answer
571 views

OS X can't unmount disk

My 1TB LaCie Rugged THB decided it was a good idea to stop working all of a sudden. If I open it in disk util I sometimes see an actual name of a partition, but most likely it's not the real name. In ...
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votes
2answers
3k views

Mac Mini can't unmount disk in Recovery Mode

I need to wipe my Mac Mini and reinstall OS X. Booting into recovery mode (holding command+option+R), I try to erase the disk in Disk Utility but it says it cannot unmount the disk or gets stuck on ...
1
vote
1answer
68 views

Can't erase SSD on main bay

I have a MacBook Pro mid 2011. I've installed a SSD on the main bay, removed the optical drive and installed a caddy with the a regular HDD on it. The OS was installed on the SSD. This setup works ...
0
votes
1answer
50 views

Clear “Disk2” “OS X Base System” before USB boot OS X install

Machine is MBP E-2011 500GB hybrid hard drive. Operating system is OS X 10.10.5 Yosemite. I've encountered system issues that are difficult to resolve and have decided to reformat and reinstall OS X. ...
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0answers
79 views

Error installing OSX El Capitan

I am trying to install OSX El Capitan in a Mac Mini but I get the error: OS X could not be installed on your computer! A disk with a mount point is required Quit the installer to ...
0
votes
1answer
39 views

Cant recover from Time Machine Disk because [UPDATE NEEDED]

I have an external drive with a bunch of backups and I want to make a restore from that disk. I've always been able to restore by starting the computer while pressing the option key and selecting the ...
4
votes
2answers
91 views

Switching MBP from hard drive to SSD

I have a mid 2010 13" MBP that I am wanting to last me a couple more years. It was suggested I get a SSD to replace my hard drive, so I bought it but need to know some stuff before switching to it. ...
0
votes
2answers
70 views

Unable to copy OSX Installer from external drive to Mac

As usual I wanted to prepare bootable USB with OSX. Some time ago I've made a copy of my Mavericks, Yosemite and El Capitan to external drive. I wanted simply to drag & drop El Capitan to prepare ...
3
votes
2answers
84 views

Accidentally changed owner of /var system folder recursively to myself

Long story short, accidentally I ran sudo chown -R myusername /var/ and now my mac won't boot anymore (after entering user password for hdd decryption loading bar is slowly filled and after it gets ...
0
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0answers
29 views

MacPro internal HD unreadable when moved to external USB Dock - and vice-versa

Since I just installed a NAS, and I want to transfer several TB from my Mac Pro's internal hard disks (4 of them), I wanted to make it faster by connecting those hard disks directly to the NAS using ...
0
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1answer
45 views

Cannot extend partition after failed bootcamp install

I got an error while trying to install Windows 10 on my Mid 2014 Macbook Pro via Bootcamp Assistant. The error occurred whilst partitioning the disk: Your disk could not be partitioned. An error ...
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0answers
45 views

diagnose possible issue with MBpro 2012 running very slow

tl;dr Can a MacBook Pro become unbearably slow because of hardware issues, e.g a hard-drive failure? How can I best diagnose this? I own a MacBook Pro from 2012, which recently has become unbearably ...
1
vote
1answer
41 views

How to run current mails from MacBook and access or search old mails from an external hard drive?

I have a large number of emails on my MacBook Air. I want to shift all my old mails into an external hard drive and delete the same from my MacBook to save space (47 GB). Then I would like to continue ...
2
votes
1answer
40 views

Recover deleted files from MacBook Retina's SSD

I need to recover deleted files from my MacBook Retina. The files were deleted by an app update and didn't make it into the Trash. Is it possible to recover files from an SSD? I have used programs ...
10
votes
7answers
20k views

How can I keep my fan from staying at full speed after replacing the hard drive?

I replaced a hard drive in a 2011 iMac (Core i7), though it was a standard hard drive and didn't have a location for the S.M.A.R.T. cord. (Or at least I think that's what it was.) Since then, the ...
0
votes
1answer
68 views

EFI automounts on startup

After upgrading to the newest El Capitan from 10.10. to 10.11.1 - I guess - the normally invisible EFI partition appears on the desktop as a regular volume on different machines, if I choose to show ...
4
votes
1answer
572 views

I just overwrote my folder while mounting a hard disk drive. How do I undo/recover it?

I was trying to mount a Linux filesystem on a Mac and accidentally mounted it to my ~/Documents folder using a utility ext4fuse. Below command is the issued command: sudo ext4fuse /dev/disk2s7 ...
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vote
1answer
77 views

Cannot unmount disk0 resource busy

I am unable to wipe my hard drive and install new OS X as the resource is busy. I would imagine this is because I have Recovery open on this disk and that's why it is busy. I've tried: diskutil ...
0
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0answers
76 views

Fix hard disk not detected after force eject

I got an HDD on my Mid 2012 Macbook Pro 13 inch. I decided to upgrade to SSD and I want a clean install of El Capitan. After the SSD ugprade and OS installation I connect my old HDD as an external ...
0
votes
2answers
52 views

Will it do any harm to cannibalise an old hard drive as an SSD enclosure?

I have an old G-Tech Mini portable hard drive (FW800, bus-powered) that I don't need any more, so as an experiment I took the actual hard drive out and replaced it with a 512GB Crucial M4 SSD. I would ...
1
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0answers
39 views

HD fine, SATA cable fine, but MBP internal won’t mount/boot

I’m looking for some advice regarding a specific problem with a MacBook Pro mid-2009 running the latest version of El Capitan. The basics follow, but I have shared details of the troubleshooting ...
1
vote
1answer
118 views

Boot Camp failed and reduced Macintosh HD partition from 3TB to 1,46TB

What went wrong? I created a new partition with Boot Camp Assistant (OS X 2,25TB | WIN 850GB), but during the partition process, the iMac suddenly restarted. When it got back on the Fusion Drive's ...
4
votes
2answers
3k 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 ...
1
vote
2answers
215 views

My internal “Machintosh HD” is not detected by my MacBook Air

I was trying to clean install OS X (from http://www.ibtimes.co.uk/how-clean-install-os-x-yosemite-via-bootable-usb-flash-drive-1470625). I made the bootable disk, booted from it, and tried ...
0
votes
1answer
25 views

MacBook hard drive formatting

I removed Filevault to resize the main partition. I had about 320 GB of data on my hard drive so I tried to reduce this partition. The partition wouldn't budge so I closed Disk Utility and shut down ...
0
votes
1answer
9 views

Running Application From External Hardrive on a mac

I have copied my application to external my hard drive but when I run it it copies the application to the application folder on the mac and then runs.
0
votes
1answer
57 views

Macbook Pro late 2011 version won´t boot up

Hi guys I have been searching the forum and haven´t seen a solution to my problem therefore i will start by explaining what happened. Last night all of a sudden my mac froze, the mouse would move but ...
0
votes
1answer
51 views

Did something wrong with partitioning my SSD

I tried to make a partition for Windows on my Mac by using Apple's Disk Utility, because bootcamp already showed me that it didn't work for some reason. But now I'm stuck with a 70 gb hard disk, and ...
1
vote
1answer
37 views

I had 250 GB free on my hard drive a week ago, I have done almost nothing and now it's 80GB?

I have only browsed the internet, and added a few files around 2GB. When I look in / (with hidden files) and take all the sizes together it just becomes about 730, but I have a 960GB hard drive with ...
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0answers
29 views

Is it possible to use diskutil to manipulate the read/write buffer of the SSD portion of the fusion drive?

Has anyone been able to use diskutil to manipulate the Core Storage LVM into increasing the size of the read/write buffer of the SSD? Currently the Fusion Drive keeps 4 GB free for new reads/writes. ...
0
votes
1answer
36 views

My MacBook gets stuck but still has 44 GB of storage left

My MacBook has 125 GB storage space (other 125 GB is for Windows). It still has more than 44 GB available but it gets stuck every two hours. I have tried all the methods I can find and have deleted ...
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0answers
170 views

Finder reports error code -36 when copying some files

I have a 4.6GB file on my hard drive. Today when I tried to copy it to another machine through network, I got the following error message from Finder halfway through the copy: The Finder can't ...
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0answers
48 views

My MacBook 2012 has sleep/wake problems with SSDs as internal drive

Whenever I have an SSD (crucial mx100 or samsung 850) as my internal hard drive, my macbook has problems with sleep/wake. If I unplug my macbook and let it sleep, the hard drive does not wake up. It ...
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0answers
19 views

Can I change the filesystem of a drive from ext4 to hfs+ without formatting?

So my one drive is ext4 formatted but I would like to read and write to it from OS X 10.9 The only thing I can do is use osxfuse 2.8.2 to make the drive read only at the moment.
0
votes
1answer
11 views

Transfer capacity between two partitions

I have created two partitions: System 850GB Data 150GB what I actually want is: System 200GB Data 800GB ...however, disk utility doesn't let me either merge these two partitions or transfer ...
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0answers
53 views

Messed up 3TB Fusion Drive Partitions (on iMac Late 2012)

I found one of the threads around here where you helped some guy with getting the Fusion drive back together after a failed attempt of using the Bootcamp on a Mac machine. Messed up 1TB Fusion Drive ...