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

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Why does time machine make a complete backup of external hdd

I have time machine configured to backup my external hdd: /dev/disk4 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFSX MyPassport_2TB ...
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5answers
219 views

How to Eject All External Partitions Quickly?

I have an external disk with two partitions on it that I keep plugged into my MacBook Pro when I'm at my desk. (One is for Time Machine, the other just for extra storage.) Sometimes I need to grab my ...
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1answer
2k views

How do I move my iPhoto library to an external drive available through Time Capsule?

Like many others, the number of photos that we are storing these days is growing. Also, we have multiple iPhoto libraries on various computers. So it makes sense to consolidate photos into a ...
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6answers
10k views

The volume can't be ejected because it's currently in use

After working with an external USB backup disk I want to cleanly unmount the drive. When pressing the 'eject' button Finder warns me with the message: "The volume can't be ejected because it's ...
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1answer
32 views

Should I reformat a disk if Disk Utility asks me to?

I have a FAT32 external disc that was suddenly unmounted as I was using it. When I reconnected it and tried to Repair it in Disk Utility, I got the following messages: Verify and Repair volume ...
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13 views

WD My Passbook for Mac plugged into Time Capsule via USB. Does it sleep? OK to leave in?

I have a WD My Passbook for Mac plugged into my Time Capsule via USB. I can access the drive just fine and really like it as additional storage in my network. Only problem is, I can't tell if it ...
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2answers
607 views

Encrypted/Journaled Seagate won't accept Password

I have a 2011 MacBook Pro Intel running Mountain Lion. I have a 2tb Seagate External Drive with 3 partitions: all three were set up the same way with different passwords as a person who used to live ...
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3answers
81 views

How to eject my external drive when my Mac refuses because of Spotlight?

I have plugged an external disk to my Mac. Now, I want to eject it. But my Mac stubbornly refuses and says that an application may be using the disk. I have not launched any app neither opened any ...
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7answers
9k views

disk utility can't repair this disk. backup as many of your files as possible

I have an external hard-disk with a single Mac OS Extended partition. This disk stopped working couple of days ago. I tried to repair the partition with disk utility but no luck. The error message is ...
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1answer
22 views

Reformat Time Machine backup drive back to an ordinary external hard drive

I have a WDC Passport external drive which I used as a time machine backup. However, I do not want to use it as Time Machine backup anymore, I just want to use it as a regular external hard drive. ...
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57 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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5answers
10k views

Macbook Pro won't mount external hard drive

I have been having this problem with a Macbook Pro late 2006 and a Macbook Pro early 2011. Macbook Pro refuses to mount an specific external hard drive or USB stick, after being able to do so with no ...
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1answer
8 views

Launch iTunes and iPhoto when external USB drive is connected

Is there a code that I can just copy an paste into Terminal or Automator? If not what is the best Application to download?
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1answer
640 views

Recover Deleted Files on Mac OSX [External NTFS]

I have accidentally deleted some files on my Mac OS X Mavericks. Actually, I was trying to burn an .img file to my flash drive which was located at /dev/disk1 (at the same time I had connected a NTFS ...
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2answers
921 views

Error: “couldn't unmount disk” keeps coming up when formatting external HD to eXFat

I have a WD "my Passport" external HD that is currently formatted for a PC and I would like to format it to eXFAT. Every time I hit "erase" in disk util it just comes up with the error "couldn't ...
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1answer
92 views

Can I remove one partition on an external drive, while keeping the other intact?

I have an external USB drive, which I've partitioned into separate FAT32 ("MOVIES") and OSX ("TIME_MACHINE") partitions: I now wish to remove the FAT32 partition and just use the OSX partition. ...
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3answers
2k views

External USB drive connected to Airport Extreme doesn't show up in Airport Utility

I have connected an external drive to my Airport Extreme, but it doesn't show up in Finder, and it doesn't show up in the list of drives when I connect to the Airport Utility. The same drive worked ...
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0answers
13 views

Partitioning an encrypted time machine hard drive

I recently got a 1TB external hard drive. My intention was to partition half for time machine to do backups, and half for general storage. When setting up time machine there was the option to encrypt, ...
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0answers
32 views

Make an external DIY Fusion Drive

Last year, I created a Fusion Drive in my 13" MB (2008) by replacing the optical drive with a SSD and link it with the internal HDD by some terminal-magic from a computer magazine. It worked like a ...
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0answers
22 views

Can one mount a FileVault 2 encrypted drive from Windows?

I encrypted an external drive with FileVault 2. Now it would be great if I could access it from a Windows PC. Is this outright impossible? I found no definitive answer either way.
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0answers
62 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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1answer
82 views

NTFS External drive issue in Mac 10.9

Earlier i was able to access the NTFS formatted External hard drive in my Mac 10.9 as read only device. While trying to make the external NTFS drive writable i screwed up by unmouting it this link ...
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1answer
387 views

MacBook Pro won't boot with new hard drive, but a different MacBook Pro will

So here are the details. My friend and I both have 13-inch Mid 2010 MacBook Pro's. Same processor and specs since they were purchased at the same time, but originally had 250 GB hard drives. His hard ...
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0answers
17 views

Why is my Blu ray burner ejecting blank disks?

I bought an external drive/burner that supports reading/writing of single and double layer Blu Ray disks. I'm running OS X Mavericks. I haven't had any issue burning CDs and DVDs, but when I insert a ...
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2answers
43 views

WD MyBook appears as read-only

My WD MyBook Essential with USB 2.0 appears with read-only permissions. I set the drive up on my old Vista machine, and when Vista began crashing, I switched to Ubuntu. I still have the Ubuntu ...
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4answers
4k views

Can I share files from my external hard drive across my PC and Apple laptop?

I have a desktop PC with a pretty small hard drive. I bought an external hard drive with 500GB of space and now use that for all of my pictures, music, etc. Its almost full. I am now in the process ...
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6answers
21k views

What is the best way to clone a disk between two Macs?

What is the best way to clone a disk between two Macs? I ask this every couple years or so and every time I get the same answer. "Use Carbon Copy Cloner", they say. But the unfortunate fact is that ...
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3answers
14k views

What are the advantages of formatting an external disk as journaled HFS+?

The application Disk Utility /Library/Utilites/Disk Utility.app which is part of the applications that ship with the Mac OS allows to reformat an external disk. Options include: Mac OS Extended ...
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2answers
4k views

Access disk attached to Airport Extreme over internet?

According to Apple's product page, the Airport Extreme... "...can turn your external USB hard drive into a secure drive you can share across your Wi‑Fi network and access securely over the ...
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1answer
61 views

Time Machine Backup accidentally unplugged, can't repair

I accidentally removed my Time Machine backup without ejecting. It didn't show up in Finder after I plugged it back in and Disk Utility cannot repair it. Disk Utility recommends reformatting the disk, ...
5
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3answers
2k views

Time Machine error creating the backup folder on a spacious hard drive

I have upgraded recently to Mavericks, and am setting up Time Machine on this system for the first time (it wasn't set up with the earlier OS, Mountain Lion.) Time Machine successfully backs up once ...
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2answers
137 views

external hard drive found only by disk utility, cannot eject or mount

I'm using a Seagate GoFlex that seems to have encountered some trouble. The drive does not appear on the desktop or Finder. I've double checked that Finder > Preferences allows for it to appear in ...
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28 views

External USB 3.0 Seagate HDD No Longer Mounting

Out of nowhere my 1 TB Seagate FA GoFlex won't mount my Mac formatted partition (the only partition). I have run repair disk on the drive and on the partition and find no errors. I still get an ...
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0answers
192 views

Finder not able to view folders and files on EHD after updating to OS X 10.9.4

I can see still see 'Hitachi' in the 'Devices' Sidebar, but I am not able to view folders and files on this Hitachi XL2000 2TB FAT32 Hard Drive (EHD) that is USB connected to the iMac below. Late ...
10
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7answers
14k views

What format for my external drive allows use with Mac and Windows?

How can I use my external hard drive on Mac OS so I can modify/edit files on both OS's: Mac and Windows? How should I format it?
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1answer
31 views

Run OSX as normal off external HD?

I'm continuing to hatch a plan to keep running whilst emergency repairs are carried out on my MBP. Further to a question I posted on Monday I'd like to know if anyone could shed light on whether this ...
2
votes
2answers
2k views

How do I restore itunes library onto another computer

I followed all the steps as suggested for backing up and restore iTunes library in the apple support website: http://support.apple.com/kb/HT1751 but I have problems with the 'choose library' part in ...
0
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1answer
20 views

Move data from 1 hard drive to the other

I have a bootable partition on an external drive with some old data that I want to move to a new external hard drive. The partition on the old drive is 500GB however theres only 320GB of data. So i ...
0
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1answer
30 views

Possible to backup External Disk to Time Capsule regardless which machine it's connected to?

Here's the scenario: I have two MacBook Pros (Foo and Bar), and their drive's are both called Macintosh HD. I have a Time Capsule called Time Capsule, which is used to back up both Foo and Bar. I also ...
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1answer
164 views

How to daisy chain 2 Thunderbolt devices on 1 Thunderbolt port? [duplicate]

On an iMac with 1 Thunderbolt port, how to have an external monitor and an external HDD work? I can't use the USB port because it's 2.0, it will be too slow (the external HDD is a SSD). I understand ...
0
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2answers
43 views

Move referenced iTunes Audio files to another drive/folder

well, my iTunes library is on my main HD whereas audio files are on an external drive. I have to change the drive for these files and / or folder name, how do I point iTunes library to that ...
5
votes
6answers
6k views

How to run Applescript on Disk mount

I want to run an Applescript when I mount a specific disk. It isn't if the script is located on the disk or not, it should just run when OS X mounts the disk. I tried to accomplish this with folder ...
2
votes
1answer
25 views

External HD has disappeared from Finder

I believe I created this problem. When I plugged my External HD in last week I accidentally dragged the Ext HD onto the desktop. It then disappeared from view in finder and there is no shortcut on the ...
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0answers
84 views

Windows 8.1 on external SSD USB3

I have a 2013 Mac Pro. I created a bootable USB stick with Bootcamp Assistant. I then followed the steps over here: ...
0
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2answers
50 views

.mov file in external HD, grayed out and won't open: “this item is already used by Mac OS X”

The file won't open, with QuickTime, with the following error message: Selecting repair disk on disk utility results in this: I'm under OSX 10.7.5.
2
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3answers
356 views

The hunt is on, new Mac Pro 2013 and where do you move your old MP data?

I would say, the hunt is on. If your are like me, having a old Mac Pro, with 4x HDD (8 TB total) and your preparing for the new Mac Pro (yeah!). Then the question becomes: where do you move your old ...
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1answer
28 views

Connecting iPhoto to external drive

Would it be possible to create iPhoto "repository" on an external USB hard drive, so that every time I would plug the drive I launch iPhoto, I could manage my photos?
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1answer
75 views

using external hdd slows down my mac

When I use an external drive via usb, my computer really slows down giving me no choice except reboot. I watched memory usage with activity monitor. Free memory decreases by time and inactive memory ...
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0answers
32 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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0answers
249 views

Backup Failed - Time Machine couldn't back up to “disk name”

I have a 2013 MacBook Air running Mavericks. I bought a Nifty drive and a top of the line micro sd. When I shutdown my computer, turn it back on and go to backup no problem, but if the lid is shut and ...