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

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82 views

Error -50 on a partitioned external hard drive

I bought a 4 TB Seagate Expansion external hard drive about a month ago. I intended to use 1 TB as a Time Machine partition and 3 TB for miscellaneous storage. When it arrived I went ahead and made ...
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45 views

“Use the purchases page to try again” error while installing mac on a raw harddrive

I want to install OSX Mavericks on a seagate internal raw hard drive. I downloaded "RecoveryDiskAssistant" and installed it on a USB drive. Before installing I made a partition for new harddisk, and I ...
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64 views

Warning “disk full” while more than 100 GB space free in disk utility

Why does the system warn me for "startup disk full" while "disk utility" shows there are still more than 100 GB space free? The warning is in the form of a pop-up dialog. Not sure how many ...
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30 views

Clone whole partitioning scheme to smaller disk

I have the following on my secondary disk. As I am not satisfied with it I would like to clone everything to the other one which is smaller unfortunately. /dev/disk2 #: TYPE ...
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49 views

How to fix permissions with Repair Disk Permissions?

I just installed Xcode 5.1 and the latest round of updates. I followed that with a Repair Disk Permissions. For some reason, Apple installs its software with broken permissions. I then ran Repair ...
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17 views

Another 2011 MBP display meltdown - how to copy internal HDD?

Last night while watching some videos and browsing the internet as usual on my 2011 MBP, the screen went to solid grey and hasn't come back since. I've been reading for hours about this issue and it ...
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83 views

External Hard Drive died – How do I recover those files from Time Machine?

My external hard drive, which I was backing up with Time Machine, finally died. I want to retrieve some of those files, but when I go into Time Machine I can't navigate to those files because Time ...
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60 views

Alignment error with external hard drive, Time Machine

While trying to backup via Time Machine, I am seeing the following errors in 'sudo dmesg' output: CODE SIGNING: cs_invalid_page(0x1000): p=8425[GoogleSoftwareUp] clearing CS_VALID USBMSC Identifier ...
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40 views

Replaced Ipod video hard drive and battery, now won't start. Did I accidentally kill the hard drive?

As I said in the title, I've been trying to revive an old 5th gen ipod video. I replaced the hard drive, screen, and battery. At first it wouldn't boot, only giving sad ipod error. Then out of ...
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63 views

Disk I/O error on a superdrive?

The hard disk of my late 2011 MacBook Pro 15" died and I replaced it with an SSD. I wanted to have more space, so I bought a 1 TB hard disk and put connected it instead the superdrive. The problem is ...
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34 views

Duplicate PERMISSION SCHEMES in “Get Info” window for HDs /in OSX -on new /newer Macs

I am running Mavericks (booted from external drive): from a super-fast solid-state HD (Thunderbolt v1 cabled); I reinstalled the 10.9.2 OSX a while ago - due to permissions rebuilds /other weirdness, ...
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56 views

Macbook often won't shutdown if external not manually unmounted first

If I don't have my external hard drive plugged in, or if I eject it first, the computer shuts down very fast thanks to my SSD. But if I don't eject it first, it either takes much longer to shut down ...
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25 views

Mid 2010 MBP 15" - Manually Upgraded MBP, what should be my next steps?

I've been reading up on what to do after manually upgrading my MBP, and answers vary per individual/profession. I replaced Optical Drive with an 120GB SSD, and made SSD into bootdrive, HD into ...
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29 views

Recovery of Deleted Partition That Has Been Partially Overwritten

I refer to How to recover a deleted/replaced HFS+ partition from external drive?, which provides an easy way to recover partitions that have been deleted but are still intact. I have a harddrive ...
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769 views

Reclaim unallocated disk space on macbook pro?

I had portioned my hard drive into two (mac and Windows). Later I portioned the primary (mac) into two but figure my Windows were not loading so I changed it back into one. The problem is there is ...
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42 views

Time Machine, Drive not available

My friend has a MacBook Pro. I've wanted to do some backup on an external drive (Lacie 1TB) with Time Machine. Now, since the backup is in the external HDD, I can not use the internal drive of the ...
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50 views

Throttle local file transfer speed in OS X

I have two high speed disks (250MBps) attached to my Mac Pro. For testing purposes, I want to copy files from one disk to another, with a defined speed limit, for example 100MBps. In other words, I ...
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80 views

Why does the diskutil shows I have two local hard drives?

I was trying to get my NTFS drive to work today and I discovered that the diskutil thinks I have two local hard drive. This phenomenon is not occurred on my Macbook Pro. Do anyone know why? Here is ...
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92 views

Migration issue - duplicate user account

I've got a situation that I don't know how to resolve. I've had a Mac setup and all worked fine. I've bought an SSD drive, installed Mavericks and used the migration assistant to move all the stuff ...
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45 views

iMac14,1 disc: 3Gb/s or 6Gb/s?

Does anyone have an iMac14,1 with the following disc? ST1000LM024 HN-M101MBB This is a 5400 RPM Sata-II interface drive. I am curious regarding it, as I went in to the Apple Store to see what the ...
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74 views

Something like MHDDFS for OS X?

I'm trying to have my Mac Mini take over all my server's functions (I'm recycling the server hardware into a Linux workstation). Its pretty much all done, except for the file-serving portions. ...
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41 views

How to read apple HDD on linux without root privileges?

My question is very simple. I just want to read my Apple HDD on my linux computer without root privileges. My goal is only to read and copy some file from my home directory (in Documents). Currently ...
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44 views

FileVault drive asks for password, doesn't accept it, but mounts

I have an external drive that I use as a bootable clone (using Carbon Copy Cloner). Sometimes, though not always, when I connect the drive, I get an alert saying "Enter a password to unlock the disk". ...
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33 views

AirPort Extreme network drive only uses the free space

I'm trying to expand my network by attaching a hard drive to my AirPort Extreme. The whole setup works and the drive is accessible by any computer connected to the WiFi, but for some reason, the ...
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165 views

External FW HDD not showing up in Finder, but still functional in FCP 7

Okay, so this has been a very baffling issue... We have two OWC Mercury Elite Pro hard drives that have been perfectly functional since we got them a few months ago. We recently upgrade to 10.9 on ...
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69 views

Diagnose if corrupted volume is due to hardware problem

This morning when turning on a Mac laptop, it suddenly announced that an external backup disk (which was connected overnight) "can't be repaired". Disk Utility also says: Disk Utility can’t ...
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151 views

External hard drive un-mounts and mounts itself

I have a Seagate external hard drive formatted to HFS+ that won't stay mounted for more than a couple of seconds however then mounts itself again only to unmount itself again and this keeps happening ...
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93 views

SSD in mid 2011 mac mini

I was thinking about upgrading my mac mini mid 2011 with an ssd, following i-fixit guide. in the mid 2011 do I have enough space for an SSD + HDD configuration using the mounting kit provided by ...
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221 views

My external hard drive is full, now I can't mount (or see) it

First off, I'm using a 3TB western digital external hard drive with a mac-mini running Mavericks osx. I was backing up a lot of data to my external hard drive, and then I went away for a few hours. ...
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148 views

Reduce impact of Disk IO on performance

I've never found that OS X has been exemplary at handling responsiveness under Disk IO, but Mavericks has made it so bad that I've been barely able to use my machine whenever a backup kicks in. ...
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82 views

Splitting user and system across multiple volumes

I'm migrating from a large HDD (1.25TB DIY Fusion Drive) to a pair of SSDs (256GB + 1TB). I want the 256GB one to mount as /, and the 1TB one to mount as /Users. In previous versions of OSX, you could ...
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132 views

How to mount a VMware startup disk as read-only?

I am using VMware Fusion 5. I have several disk images (*.vmdk mostly) that I would like to mount as read-only. They are sensitive disk images that should not be connected to the internet, nor should ...
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283 views

Cannot completely eject my external hard drive on Mac OS X 10.9

I am using Mac OS X Mavericks (10.9). And wanted to attach my external hard drive to VirtualBox ubuntu virtual machine. To do this, I should completely unmount and eject all external disk partitions ...
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114 views

Cannot partition hard disk although file system is OK

Here is what Disk Utility logs when I try First Aid → Repair Disk: Verifying and repairing partition map for “TOSHIBA MK3265GSXF Media” Checking prerequisites Checking the partition list Adjusting ...
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900 views

How do I get my iPad to show up under DEVICES in iTunes 11.1.3?

I've been having problems seeing my iPad (and my iPhone, haven't tried my iPod) under the DEVICES section on the left (where the STORE, GENIUS, PLAYLISTS, LIBRARY are located) in iTunes 11.1.3. It ...
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223 views

Can't encrypt external hard drive

I'm trying to encrypt an external drive of mine using Apple's built in drive encryption tool into OS X through Finder. The drive is formatted as Mac OS Extended(Journaled) and I'm plugging the drive ...
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387 views

Unable to create new partition with Disk Utility on external drive

I'm trying to create space on an external drive to clone my mac as a bootable volume with CCC. With Disk Utility I cannot modify it for some reason (probably because the same disk is used with Time ...
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49 views

Used iMac with lion installed, no discs. Do I upgrade to Mountain Lion? Rename HD?

Just bought a used iMac (mid 2011) with Lion installed on it. I do not have the install disc so I am wondering if I should upgrade to mountain lion or continue as is and hope I never need the system ...
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343 views

Is there a “windirstat”/“Disk Inventory X” type iOS app? (ie app for visualizing hard drive usage on iOS)

This is a pretty simple question. Assuming you know what WinDirStat &/or Disc Inventory X do, which is visualize the usage of your hard drive on a file-by-file basis, sized in proportion to the ...
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644 views

Upgrade Firmware on Samsung 840 when part of a Fusion Drive

I have successfully created a fusion drive using an 256GB Samsung 840 Pro and am loving it - but am experiencing (my first) system crashes (on my mac) ever since when I send my MBP to sleep. I read ...
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111 views

CPU really busy every time I plug in an external HDD

I have a white MacBook, from 2010. I recently upgraded its software from Snow Leopard to Mountain Lion. Now, I am experiencing 2 problems (not sure if related with the OS upgrade or not, but looks ...
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310 views

Macbook Air hard drive crashed, download Lion without paying again?

2 days ago my girlfriend's MacBook Air crashed (mid 2012, running OS 10.8), only showing the infamous "folder" icon. Usual stuff did not help, reboot pressing alt, cd, etc. We went to an Apple Store ...
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146 views

copied files from one drive to another showing incomplete progress bar

Copied files from one drive to another showing incomplete progress bar in mac. When recopying them it seems as they were complete.
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109 views

What is the limiting factor in /dev/zero speed?

I have installed 4 brand-new SATA hard drives in a mac pro. My OS is running on a fifth drive (SSD). I run this command pv /dev/zero -tpreb | sudo dd of=/dev/rdisk1 bs=512k for many hours to ...
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158 views

Is there a way to boot on iMac from usb using a different OS and access osx files to back them up

I am having issues starting up my iMac. I would like to know if i create a bootable usb with Ubuntu or any other OS, would i be able to boot with it and access the OSX drive? I able to do this in ...
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757 views

Dual partition a large drive for use by Mac and Windows

I have a 3TB USB3 drive that I want to use between my Mac and Windows laptops. A 1.5TB partition will be used for Time Machine and another 1.5TB partition will be used by Windows for file storage. ...
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1k 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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411 views

How to select which disks are allowed to sleep?

There is an option "Put the hard disk(s) to sleep when possible" in Mac OS X's preferences: Is it possible to configure which disks Mac OS X can put into a sleepy state? For example, I want to ...
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171 views

Should the Sudden Motion Sensor be disabled with a hybrid hard drive?

I've read that it's ok to leave the SMS on with non-stock hard drives, but I've also seen that it can crash an SSD. I have a Momentus XT with 4GB of solid state memory and 500GB of spinning platters. ...
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2k views

Install Linux Mint on a dual-drive MacBook Pro with Windows and OS X

I have a Macbook Pro 13 mid-2012. It was shipped with a 500GB HDD, to which I added an additional SSD drive (128GB). After installing my SSD in a caddy, thus replacing the optical drive, I installed a ...