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

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60 views

Fast external startup-disk for Macbook Air: SSD1 or Thunderbolt?

I bought a MacBook Air 13.3″ i7 8 GB RAM 128 GB SSD (early 2014) some months ago and found out that the 128 GB are definitely not enough! To somehow rectify my problem I though of buying a fast ...
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1answer
43 views

Maximum size drive for Mac OS X

4 TB = 1.8 TB ? What is the maximum size drive that can be used with various versions of Mac OS X? On a white Intel MacBook running Mac OS X 10.6.x, the Disk Utility app recognizes a new Seagate 4 ...
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1answer
330 views

Deleting a hard drive protected by password with Mac OS X Yosemite

I recently changed my hard drive for a SSD device. The removed storage device can be used as an external drive, via USB. I want to delete everything on this HD, but it is asking me for a password when ...
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0answers
48 views

How can i delete a partition in Terminal when I can't simply combine because 'The given partitions are not on the same whole disk'?

Before I partitioned my HD, the only one I had was "Macintosh HD". The partition created one called "Macintosh HD2" I used terminal to erase "Macintosh HD2" somehow, but it returned as "Untitled." ...
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35 views

How to backup, restore and erase OS X GPT using dd under Linux?

How does one backup, restore and erase OS X GPT using dd under Linux like it's shown in Archlinux Wiki using the MBR analogue: To backup the MBR: # dd if=/dev/sda of=/path/mbr-backup bs=512 count=1 ...
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2answers
46 views

Which upgrades to my iMac 2011 will improve performance the most?

I have started a job that will require processing of large datasets using python and ArcMap (separately and in conjunction with ArcMap). I have a 2011 27" iMac with the 3.1 Mhz i5 (3rd generation I ...
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2answers
134 views

What's the better way to expand my small SSD?

I have a retina MBP (MacBook Pro (Retina, 15-inch, Mid 2014)) with an SSD of 256GB. Using it for a month or 2 now, I'm noticing that I'd like some more space (for using a Virtual Machine). There isn't ...
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2answers
19k views

How to disable Time Machine for an external hard drive

My wife has a MacBook Pro and two external hard drives; both of which currently contain a Time Machine backup of her MacBook Pro hard drive. Now she wants to "turn off" Time Machine for one of her ...
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0answers
55 views

Upgrading SSD and RAM has horrible side effects

upgrade a MBP 13inch ram and hdd to ssd Upgraded using carbon copy cloner. Constant beach balling Takes 40 seconds of white screen to get to the apple boot screen Network just doesn't work. It ...
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3answers
1k 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
236 views

How to convert a DVD to ISO?

On Mac OSX 10.9, how do you convert a DVD into an ISO that I can use with players such as VLC. I wish to achieve this without buying a program. Steps I have tried: Downloading Mac app Burn. It ...
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5answers
115 views

External Hard Drive size

I'm using a 13-inch 2013 macbook air with 4gb memory, and after a near disaster with a spilt drink I've realised I need to start backing it up. I don't know what size external hard drive I need ...
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0answers
75 views

How to use Time Machine backup when hard drive is broken?

I have a MacBook Pro which I use Time Machine to back up usually weekly. Its hard drive broke recently. I got an exactly same hard drive and installed it into the laptop. How do I restore the ...
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0answers
26 views

Extracting files off sparsebundle with read errors

I have a large sparsbundle disk image on a drive that is reporting read errors. I am able to mount the image although it can sometimes take several minutes. I would like to copy any readable files ...
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1answer
119 views

Where is my disk space going?

My available disk space seems to «vanish» magically. OmniDiskSweeper tells me that 69.5 GB data is on my hard drive, but how come Finder and Terminal (and OmniDiskSweeper's drive list itself) tell me ...
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0answers
18 views

Can't read files on a secondary HDD with caddy

I added a secondary HDD thanks to a caddy (http://www.amazon.fr/gp/product/B0090KFOYS) in my MacBook Pro (Late 2011). I tried to format it and some errors occured. I retried it several times and the ...
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1answer
262 views

Cannot boot Mac Mini with striped RAID 0 set

Today we could not get one of our machines running with 10.9 and RAID 0 which stripes the data on the boot volume. After several hours of doing the 'standard' tasks like fixing permissions etc, we've ...
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0answers
16 views

Feasibility of swapping two MacBook Pros (both hard drive and RAM)?

I have an early 2011 MacBook Pro, and my sister has a mid-2012. I've already seen the suggested duplicate possibilities that say that just swapping the hard drives shouldn't be problematic, but I've ...
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1answer
37 views

A partition copied with cat can't be mounted

Well some days ago my mac got broken, I had an Ubuntu on it and booted through it, first thing I did I copied mac partition to an external hard partition, something like this: cat /dev/sda2 > ...
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2answers
1k views

Implications of using a USB SSD drive to run VM images off

I'm running VMware Fusion on my Apple Macbook Pro (15 inch, Mid 2012, OSX 10.10.2), and have several VM images that are stored on an external USB3 disk (WD Passport). The external disk is fine for ...
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2answers
39k views

Cannot Unmount Mac OS X Base System Disk

My Mac running Lion was being slow, so I was decided to reinstall OS X. I don't have any Time Machine backups. Everything went file, but in the middle of the installation, it got stuck, and later the ...
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1answer
327 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 ...
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0answers
12 views

Is it possible to mark removable storage as permanent storage? [duplicate]

I recently purchased a 128gb Transcend Jet Drive for my 2014 MacBook pro, and plan to permanently leave the Jet Drive in the SD card slot. I use OneDrive for cloud storage, but the OneDrive client ...
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2answers
213 views

How can I verify that my Photos and iPhoto library are hard linking to the same disk data?

So I've discovered Apple's mystical implementation of hard linking with the new Photos app library and the old iPhoto library. Although Finder reports that both take up a significant and similar ...
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1answer
94 views

Mac Mini with lots of I/O errors and related issues, trouble identifying culprit

Setup: Mac Mini 2011 with two drives: SSD with OS X Yosemite and admin account home folder HDD with my user home folder Symptoms: It began as many months of seemingly random slowdowns/beach ...
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0answers
26 views

Problem with having a duplicate “Users” folder on non-bootable drive?

I just installed an SSD in my 2011 Macbook Pro (running an up-to-date copy of Yosemite), opting to follow this strategy of keeping my home folder on the SSD and then "offloading" larger folders (e.g., ...
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1answer
74 views

MacBook with a new hard drive fails to start

I have a 2009 MBP (7,1) which I recently upgraded the hard drive to a Crucial BX100SD. The hard drive was configured via. a USB to SATA cable on my desktop machine. I used a Flash install of ...
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2answers
177 views

Automatically shrink existing Time Machine Backup to a fixed size

I googled for hours to find a solution for this issue, but I couldn't find an answer that fitted for my problem. My setup: I have an iMac with a ~1TB Hard Drive I'm backing it up via Time Machine ...
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0answers
13 views

Why does disk utility want to erase my RAID 1 set?

I have 2 disks, the first a 2 TB and the second a 5 TB the 2 TB is split into 2 partitions and the 5 TB into 3 partitions with one 2TB RAID0 set, one 1TB RAID1 set and one single 3TB partition. I now ...
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0answers
60 views

Trying to zero out an external drive that shows “unable to write to last block”, keep on getting an I/O error

I'm trying to zero out a drive to use it as a Time Machine backup, firstly tried to format and "unable to write to last block" showed up. I tried to zero it out, but it took a large amount of time, ...
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1answer
258 views

Backup Disk 'doesn’t contain an EFI system partition'

I have a 750GB Western Digital external HDD which I use for Time Machine backups (MBP, OS 10.10.3). Today I had the need to boot to recovery, which I did from said backup. But I was unsuccessful in ...
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1answer
774 views

USB Drive Will Not Mount, Not Listed in Disk Utilities, but Found In System Profiler

I have a Seagate FreeAgent Go drive with the optional docking station. I use it to keep files that I don't access on a regular basis and as a place to do "quick backups" of things like my Paperless ...
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1answer
81 views

Flashing question mark when I start my Mac

https://support.apple.com/en-us/HT204323 I tried everything in here didn't work. I am using a 13" macbookpro retina, latest OS. Stuff I did that might have cause this: I updated 3 apps 1 of them ...
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7answers
26k views

How to check if my HD is case sensitive or not?

How can I get information if my HD format is case sensitive or case insensitive? I want to make sure my Mac running Mountain Lion has a case sensitive file system.
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1answer
40 views

Apple MacBook Air mid-2012

A few days ago, I got my Macbook Air battery changed at an Apple store. Since then, about once a day, I've had a "kernel panic" crash, which seems to happen randomly while I'm working. (I've never ...
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3answers
3k views

Will upgrading Mac Mini hard drive void AppleCare Warranty?

After purchasing a Mac Mini, I wanted to replace the hard drive from a 5,400 rpm hard drive to a 7,200 hard drive. Will this replacement void my AppleCare warranty?
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1answer
19 views

Does the firmware impact how / if the Hard drive will function (Mac OS X 10.6)?

I am going to be replacing the Hard drive in my Mid 2010 Mac Book Pro (Snow Leopard 10.6.8) and I noticed that on the box the Hard drive claims to support Mountain Lion or Higher. I am wondering if ...
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1answer
59 views

Copy an iPhone's disk contents (filesystem) to a computer

I like to get a clear view at how an iPhone's file system. Especially in the case of damaged data. Apart from using a professional (and costly) data recovery service, what other ways do exist to ...
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3answers
5k views

Whole disk encryption with a Windows only Bootcamp

I've purchased myself a Mac Book Pro Retina (Haswell) and after giving Mac OS a fair shake have decided to go full Windows 7 and Bootcamp. There is no Mac OS install left on this system. I am now ...
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0answers
85 views

5k iMac won't recognize hard drives

Just got a new 5k iMac and none of my Seagate hard drives will work with it. it says it's not recognizing the HD. In Disk Utility it won't allow me to repair or verify. The repair and verify buttons ...
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1answer
91 views

How do I repair a hard drive that was being written to while my MacBook Air crashed? (Drive will not mount)

My external backup drive will not mount. I have tried to mount it in Disk Utility via the app and the command prompt but the attempt times out. Any suggestions? I backed up my HD the day before ...
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2answers
26k views

Unable to format / erase hard drive

I have an external HD that died on me a while ago and I'm trying to see if I can format / erase it to start using it again. The disk does not show up in Finder but I can see it in Disk Utility. When ...
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0answers
87 views

Why does my hard disk (in MBP optical caddy) keep unmounting when writing?

I replaced the optical drive in a 15" Macbook Pro (late 2011) with a new 2TB Samsung HDD in a caddy tray. It formatted fine and Disk Utility says it's OK. The problem occurs when I try to copy a ...
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1answer
289 views

Fusion Drive seems to be messed up

I felt that my iMac late 2012 became pretty slow, above all after login. Now when I look into disk utility, it seems that my disk doesn't behave as Fusion Drive any more: An output from terminal: ...
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2answers
54 views

Updating iTunes Says It Will Change My Hard Drive

When trying to update my computers with itunes version 11.4, a message says it will change my personal computer's hard drive. What will it change?
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2answers
352 views

My MacBook Pro, gets stuck at boot screen and the graphics look weird

I have a 2011 MacBook Pro i7 and I have upgraded the memory to 8 GB and the HD to an SSD 500GB. The other day I had it running for 3 days non-stop and when I tried to use it it was frozen. I reset it ...
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1answer
188 views

My SSD Drive has been converted to a Core Storage drive and cannot be erased/reformatted?

I put an SSD drive into my macbook pro. I should say that this drive hadn't been formatted and was a bootable drive with Yosemite OS on it, taken from another macbook pro... I booted the system up in ...
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2answers
6k views

Erase MacBook hard drive without OSX disc

I would like to erase everything on my Mac's hard drive as I'm going to recycle or sell it. Is there a way to do it without OSX disc?
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1answer
121 views

How do i get full capacity from Fusion drive on vmWare ESXi 6.0 Mac Mini 7,1

I managed to install the free vmWare ESXi 6.0 hypervisor on a Mac Mini 7,1. It's running rather nicely from a USB memory. The mini has s 2TB Fusion drive. My problem is that i can only get the 106 GB ...
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1answer
98 views

Disk space lost after quitting disk partition

My MacBook Pro came with a 500 GB hard disk, and I used about 250 GB. I was trying to get a new logic partition using the OSX disk utility, and then my Mac Book Pro froze and I had to quit the Disk ...