A storage device attached to a computer, but not enclosed within the computer's casing

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1answer
1k views

Manage iPhoto on external hard disk

Most of my Mac hard drive is filled with iPhoto pictures. I have an external USB hard drive. What to do? Just moving pictures from Pictures/iPhoto Library is not a perfect option as I want to have ...
1
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2answers
11k views

Powerful external hard disk health checker on Mac?

Is there any powerful program in Mac to check the health status - mainly bad sectors - of an external (USB) hard disk, and to recover them?
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0answers
6k views

How can I share an external hard drive with another Mac?

I have file sharing working between my iMac (10.8.3) and MacBook Pro (also 10.8.3), and I have an external "My BooK" drive (USB, MS DOS format) that I want to share. The iMac (where the external drive ...
2
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1answer
4k views

Can a VirtualBox Windows 7 virtual machine be installed on a USB hard disk?

My MacBook Air has only a 64G hard drive which is so small that I don't want to install virtual machines on it. I'm planning to buy a 1TB portable USB hard disk to run virtual machines. Has anyone ...
0
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0answers
61 views

Recreate unknown users on crashed mac

About a month back one of our Macs crashed and we had to restore it. The computer had an external drive connected to it and all the data is still there. Though some of the users are "missing". If we ...
2
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2answers
1k views

External hard drive spinning up during sleep

Every time I close the lid on my macbook air, my external hard drive seems to spin up for about 5 seconds every 30 seconds, and this will go on continuously, even for several hours. The noise itself ...
1
vote
1answer
14k views

How to move iMovie library to external hard drive folder?

I would like to move all iMovie (iMove '11) events to a specific folder of an external hard drive. Apple documents a means to do this, but without specifying the folder; iMovie files are created in ...
0
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1answer
4k views

WD Passport External USB Drive - Really slow on Macbook

I just got a Western Digital 2 TB "My Passport" USB drive and connected it to my macbook pro (it says it supports USB 3). But when I tried to copy my photo library it said it would take 40 hours? ...
2
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3answers
3k views

Is it necessary to eject an external drive before sleeping? [duplicate]

I have a question similar to a previous one about ejecting before shutting down. Is it necessary or recommended practice to eject external drives before putting a Mac to sleep, whether it be via an ...
1
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1answer
437 views

External hard drive unplugged while running iTunes…Corrupted files

I have nearly 2TB of Movies and TV Shows copied to iTunes on an external hard drive. Last night, I was unplugging a cord behind my desk and I accidentally unplugged my HD. Well, when I plugged it back ...
0
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2answers
244 views

Merge iTunes libraries

My iTunes library is on an external disk. I forgot to attach the external disk once and now I have some iTunes files locally. How do I merge these local files with the external library?
2
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2answers
1k views

Shortcut to eject all external hard drives but not MobileBackups

So far I've been using the following AppleScript to eject all external drives at once conveniently using a shortcut: tell application "Finder" eject (every disk) end tell This script is is ...
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2answers
5k views

Copying applications from applications folder to external and reinstalling osx

Is it possible to copy all my applications from the applications folder onto an external, format my mac, reinstall OS X and finally copy the applications back into the applications folder for ...
2
votes
1answer
6k views

USB flash drive not shown

My macbook suddenly stopped showing USB flash drives in Finder when I plug them in. I tried 3 different USB sticks - none work (worked just fine yesterday). USB-ports work fine - I tested all three ...
1
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0answers
302 views

Time Capsule external hard drive (usb)

I've added an external (Freecom XS 1TB) hard disk to my Time Capsule. However, this one's Mac Journaled (HFS+) formatted and does not display in Finder until I add a hub between the TC and external ...
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vote
2answers
204 views

Use time machine for backing up a different computer

I've been over many faq's and troubelshooting but can't seem to find an answer to this. I'm currently running my mac from an external HD. My internal got corrupted, I can't repair it with disc ...
1
vote
1answer
598 views

External Thunderbolt drive and Monitor from same port?

I have a MacMini 2011 booting from a GoFlex drive connected to its Thunderbolt cable. Recently I am considering adding a second monitor. The HDMI port is already taken by my current monitor. It seems ...
0
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2answers
2k views

How to fix mounting problem with external drive?

I have a USB external hard drive with AC adapter that works fine with an Ubuntu machine. But when I plug it into my MacBook Air it lists one partition on the finder, and does not mount the other. ...
1
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1answer
1k views

External hard disc not ejected properly - Mac OSX

I have a late 2012 Mac Mini running OSX 10.8.2. My iTunes library lives on an external Seagate drive, which has its own power supply. When my Mac Mini goes to sleep it will frequently wake up with ...
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2answers
169 views

OS X installation on external HDD

I am planning to install a second OS X on an external HDD, I was wondering when I boot in external HDD will it in any ways affect my first OS X installation? Will it have the permissions to write or ...
1
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1answer
2k views

How to remove the use of master boot record from an external hard drive?

I have a 1TB external hard drive and I want to slice it into different partitions. When I try to do so, I get this error: can not modify external drive because it uses master boot record Is ...
0
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1answer
3k views

Error copying large file to usb 16GB Thumbdrive

Trying to copy a file (Win7_IE8.vhd) to a USB drive. The file is 9.07GB in size according to my Mac file info. The USB drive is 16GB. I bought it new 10 minutes ago. This is its first use. I get: ...
0
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1answer
144 views

External hard drive problems

I've two external hard drives attached to my MBP Retina OSX Mountain Lion. Whenever I open the Finder or switch to a Finder window, if either of the hard drives are asleep, there's a several second ...
2
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1answer
413 views

MBR-partitioned HDD: How to encrypt Time Machine backup?

I'm giving my external HDD to a friend tomorrow for a few days. It's partitioned via Master Boot Record and there are two partitions: a NTFS partition and my Time Machine partition. I don't want him ...
2
votes
1answer
53 views

What is the effect of permissions on external drives?

I've set the permissions on files on my removable external drives in ways that seem to make sense to preserve some degree of security. For example, for files that only I should have access to, I've ...
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0answers
2k views

The disk you inserted was not readable by this computer

I am getting a system message from Mac OS x 10.8.2 every time I power on my ICY DOCK RAID enclosure. I have followed the procedure in the manual to the letter. Installed two new 2TB HDDs > Changed ...
0
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1answer
1k views

Installing & running OS X 10.8 Mountain Lion from an external hard drive onto my Snow Leopard Macbook Pro?

I am currently running Mac OS X 10.6.8 Snow Leopard on my late 2010 Macbook Pro. I am perfectly fine with running Snow Leopard at present, but I feel I may be missing out on features or indeed updates ...
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2answers
224 views

Weird behaviour with external USB3 enclosure

I am having issues where an external USB3 drive(#1) is not showing up after reboot. It also doesnt not show up when holding option during boot. This external drive is a clone made with Carbon Copy ...
0
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2answers
298 views

OS on external SSD for performance?

I have a 2011 iMac 27", and back then opted for a HDD. Back then (and now still) I fear for the lifespan of SSDs, and hauling an iMac 27" to the store is cumbersome, so it looked the right choice. ...
3
votes
1answer
137 views

Move file from HDD to SSD

I've recently added an SSD drive to my Macbook, and I'm using my HDD to store my files. Sometimes I want to move a file from my HDD to my SSD though. Whenever I try to drag it, Finder only allows me ...
4
votes
2answers
1k views

Weird issues ejecting external hard drive

I have a 1TB Western Digital external hard drive that I use for Time Machine backups (and storage of a few other large files). Recently (since Mountain Lion, I think) I've been getting the following ...
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0answers
786 views

Recover partition from NTFS drive with folder structure

I ran disk utility and looked for errors on a NTFS drive that was working fine but had been ejected abruptly after the computer was forced to shut down. After that a bunch of errors just appeared in ...
0
votes
1answer
455 views

Can I fix this problem backing up Time Machine to an external HD via Airport Extreme?

I'm using a MacBook Pro and I decided to try using my WD Passport external HD wirelessly by connecting it to my Airport Extreme. I had previously used this external HD for storing things as well as ...
4
votes
3answers
16k views

External drive mounts but doesn't appear in Finder anymore

I have an external hard drive (Drobo 2nd gen) connected to my Mac via Firewire. It used to appear on my desktop and in my Finder sidebar, but now it won't show up in either place (I do have "Hard ...
1
vote
1answer
208 views

External harddrive changes name sometimes

I have bought a new external harddrive to use with my Macbook Air running OSX 10.8.2. I renamed the device to "750GB External" and started using it, for example to store some photos which I edit with ...
1
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2answers
7k views

MacBook Air and external USB 3.0 hard drive

I have EEB-40S-U3 with 500GB Seagate Momentus inside and 2012 MacBook Air 13". When I connect HDD case to laptop nothing happens: I don't hear any sound from HDD itself, volumes does not appear in ...
1
vote
1answer
1k views

Time machine error backup failed with error 11

I have a western digital 2TB hard disk (wd caviar green) connected through a unitek sata hdd docking station with my macbook air (10.8.2). When I try to backup with time machine, the backup fails ...
2
votes
1answer
419 views

can I point my Pictures folder to a folder in an external hard drive?

I would like to save some space on my laptop and to do so I was thinking of moving my Pictures folder on an external hard drive. As OSX doesn't want me to mess around with the main folders in my home, ...
12
votes
3answers
20k views

Is it possible to install and boot Windows on a Thunderbolt drive?

I know the BIOS emulation of the EFI firmware in Macs does not support booting from FireWire or USB drives, and the EFI version of Windows doesn't seem to be compatible with Apple's EFI ...
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0answers
411 views

External Harddrive is showing in System Information but not Disk Utility

My harddrive crashed last night and since then I have not been able to access it on my Macbook Pro. I've restarted both my computer and hardrive multiple times and I've experienced the same result. It ...
1
vote
2answers
563 views

Why do apps which are not installed run from an external bootable drive?

After a disk crash in my MacBook Pro running Lion, I replaced the drive, installed Mountain Lion, and am rebuilding my system. I used Migration Assistant to transfer from an external bootable clone ...
2
votes
0answers
2k views

Why can't I search files and folders on my external NTFS drive on Mountain Lion?

I have tried to re-index my external drive by removing it from Spotlight's privacy settings and putting it back there. I tried with mdutil in the terminal and I've got the following log: bb:~ bb$ ...
2
votes
1answer
2k views

Macbook Pro Retina external HDD

First of all, I haven't used any Mac computers before. And now I'm considering buying a Mac book pro retina 15 with 256 or 512 Gb SDD as my travel laptop. I need to run both MacOS and Windows 7. The ...
8
votes
3answers
10k views

How can I create a new Recovery Partition on EXTERNAL disk?

I want to enable encryption on an external FireWire disk. The disk has been formatted a while ago (2+ years), and when choosing "encrypt volume" from the Finder context menu, Mountain Lion refuses ...
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vote
2answers
1k views

USB 2.0 hard disk does not show up

I have a 15-inch Macbook Pro with Retina Display that doesn't work with my USB 2 hard disk. It doesn't mount, doesn't show up in Disk Utility, and doesn't even show up in System Information in the ...
2
votes
2answers
9k views

Why does time machine backup take “3 days” over USB 3?

I have an external hard drive connected using USB3 to my macbook pro retina and I am running time machine for the first time. It is going very slow and estimate says "3 days". I don't understand why ...
0
votes
1answer
122 views

iTunes archive on non permanent external drive?

Is it possible or recommended to have the iTunes library on a non-permanent external drive? What will happen if I e.g. sync my iPhone while the drive is not attached? Or what will happen when iTunes ...
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0answers
281 views

Why do external hard drives stop working under very specific conditions?

I have a mid 2011 MacBook Pro 15" running Lion. I have seen this behavior across 3 different external hardrives, with varying manufacturers (2x Seagate, 1 Western Digital), different file system ...
0
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2answers
1k views

external disk formated with NTFS not working on Mac [duplicate]

Possible Duplicate: Hard drive read only access with Mac I bought new 1 TB WD My Passport and format it with NTFS on windows XP. and now when I connect it on mac, I see the drive but I cant ...
7
votes
3answers
1k views

Can the contents of a partition be recovered after partition table is overwritten?

I ran a command to make my external hdd bootable knowing that it was risky considering the command itself did not allow me to specify a partition to which to write. (In hindsight, I would now call ...