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

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41 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. ...
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0answers
84 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 ...
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1answer
184 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
120 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 ...
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1answer
44 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 ...
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1answer
130 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 ...
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2answers
131 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. ...
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2answers
125 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 ...
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42 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 ...
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1answer
63 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
48 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 ...
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1answer
42 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 ...
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1answer
833 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 ...
4
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1answer
73 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 ...
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2answers
1k views

Can't Delete Partition

I created a partition to run Snow Leopard on my computer running El Capitan and no longer need it. I allocated 20GB to that partition. Here's what I've done. I first go into Disk Utility, select my ...
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1answer
206 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 ...
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1answer
486 views

Partition Map Failed Because No Slices Were Found

I have an external hard drive that I've used with my Mac for years, with no issues. Today I tried to plug it into my work PC to get some files off it (Windows 8), and it wasn't recognized. I tried to ...
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1answer
577 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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0answers
48 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 ...
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2answers
62 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 ...
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2answers
92 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 ...
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1answer
10 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.
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1answer
28 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 ...
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1answer
90 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 ...
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4answers
59 views

How can I find what is using the rest of my drive?

I am using a Macbook air. 64GB. My user directory has used 20.47GB Disk Utility shows 'Other' is 41.33GB and I only have 2.9GB free. What tools or command line commands can I use to find out what ...
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1answer
38 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
33 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. ...
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1answer
38 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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1answer
2k views

OSX El Capitan / Not Recognizing USB Hard Drive

I updated to OSX El Capitan a few weeks ago, and ever since I did so, my computer is having some issues with my Seagate USB 3.0 hard drive. In terminal, when I use the disk utility, the drive shows ...
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0answers
418 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
59 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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36 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.
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64 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 ...
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0answers
56 views

Encrypted hard-drive I can't reformat in Disk Utility

I have an external HDD I wish to reform (erase) so I can put inside my MBP and make a DIY fusion drive. I've done the fusion drive before but Apple made me remove it for a logic board replacement. ...
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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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1answer
57 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 ...
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2answers
355 views

Drive does not stay mounted

I created an encrypted RAID 0 disk following Why doesn't FileVault work on a RAID volume? on a WD My Passport Pro $ diskutil cs createLVG TimeMachineLVG disk5 Started CoreStorage operation ...
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0answers
621 views

Apple Hardware Test result: 4HDD/11/40000000: SATA(0,0). But repaired Disk and Permissions w/o a problem

Ran an Apple Hardware Test. Result: 4HDD/11/40000000: SATA(0,0). Then repaired Disk and Permissions. Result: Volume appears to be okay. But during use, sometimes it freezes randomly and my MBP ...
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1answer
91 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 ...
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1answer
58 views

How to exclude everything from TimeMachine backup except one folder

TimeMachine backs up all my mac and also if I have external hard drives will back them up too. My goal is to add some general exclusion list that basically stops it from backup my mac and ONLY want ...
0
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1answer
46 views

Time Machine offers to erase disk data (format), will it delete all my partitions?

So, I'm trying to perform my Macbook backup on my 3TB drive. This drive is currently has a GPT table with 4 partitions: BackupMain BackupKubuntu BackupWindows BackupMac Before BackupMain, there ...
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0answers
43 views

My SSD just disappeared

I have a mac mini, with two ssd, both internal. They worked fine for over a year. The secondary (not system) ssd has just disappeared. While I was copying a folder on it, a popup appeared, saying it ...
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0answers
108 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 ...
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0answers
486 views

How can I eject my external Time Machine hard disk attached to a MacBook Pro?

I used the external hard disk with Time Machine for the first time. After that when I tried to eject the disk, I got a message saying that it can't be ejected because it is being used by some ...
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0answers
24 views

Installed SSD in Macbook Pro 2011 and now the DVD player won't read disks

I just installed a SSD (Crucial MX200 2.5" 500 GB) into my late 2011 Macbook Pro (running 10.8.5). The DVD player will accept a DVD (which works fine on another computer so it's not the DVD), and the ...
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1answer
27 views

Corrupt Time Machine

I have an external disk partitioned in three /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *1.0 TB ...
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1answer
37 views

Convert case-sensitive HDD to journaled insensitive?

Like everyone, I've search everywhere in the web about getting my brother's HDD converted to case-sensitive journaled. I have a back up HDD that I can transfer to, I have no idea why iPartition is ...
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3answers
3k views

Remove disk image from the disk list

In Disk Utility I see two disk images (Flash Updates) But I cannot find where the image file could be. On the console with diskutil I see /dev/disk2 (disk image): #: TYPE ...
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1answer
4k views

How do I save iCloud photos to external hard drive?

Photos on my iPad are backed up on iCloud, but as my iCloud storage is full I want to back up my iCloud photos to an external hard drive. How do I do this on my Windows desktop PC? I do not have a ...
5
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4answers
5k views

How can I get my 3rd party SSD to boot El Capitan?

I have a Mid 2012 13 inch MacBook Pro that's been running successfully with a hybrid drive (3rd party) for the last few years. Recently, the operating system crashed and the hard drive is no longer ...