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

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Backup single 4tb drive to 2tb internal + 2tb external time-capsule

Is it possible to time-machine backup single 4tb drive (80% full) to 2tb time-capsule with 2tb external drive?
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8 views

Why does my external HDD have an EFI partition?

When I ran diskutil list on my Mac, it showed an EFI partition plus my normal partition on my external disk. Why is it there? If I edit my EFI partition and it gets corrupt, will a format change it ...
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13 views

Create EFI partition on external HDD for rEFInd

How can I install Ubuntu and Windows onto my external HDD which already has OS X installed on it? I want to install it using rEFInd boot manager. If I can create an EFI partition for my drive then I ...
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11 views

Western Digital - My Passport Pro 4TB Drive won't stay mounted in JBOD Mode

I have a WD My Passport Pro, currently having issues as I need to encrypt the drive in order to protect the data I am going to store on it. I am aware that this will not be possible with the drives ...
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2answers
29 views

how safe is an HDD encrypted with filevault?

I have a macbook pro and I want to encrypt the whole system with filevault. My question is now, how secure are my data for removing hard disk from device and mount it in an external case? For ...
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27 views

What about copying using the Finder?

From this link, How can I speed up SD card writing speed (using /dev/disk*) on a MacBook Pro?, it implies the SD card might be alright... just because the software is using the buffered version of the ...
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1answer
23 views

External drive is damaged and freezes my Mac. Any way to recover?

I'll explain everything in a clearer way. I have a WD My Passport Studio external hd, since a while it's impossible to read it and here's the symptoms: When I mount it and try to open the main ...
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6 views

Unmount disc (partition) on connection [duplicate]

When I connect my external harddrive, I don't want my "Dual Boot" partition to show up.
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28 views

External disks are recognized as internal ones by my iMac

When I connect portable USB disks to my iMac via a USB hub, my iMac always recognize them as internal disks. Like this, However when they're connected directly to the USB ports on the back of my ...
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1answer
21 views

How do I create a browsable index of my External Hard Disks?

I have 7-8 External Hard Disk Drives. I would like to be able to know the content of each of the drives (files and folders) without having to connect them to my system (cumbersome). Is there and ...
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1answer
17 views

External Drive icons missing on Apple

I am running Mac OS 10.11.2 and have Toshiba (1TB) and WD (1 and 2 TB) external drives that mount but are read only. I tried the terminal script LABEL=DRIVE_NAME none ntfs rw,auto,nobrowse which ...
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15 views

I have an old usb camera, and I want to get photos off of it

When I plug the device in (the device is an old Oregon Scientific credit-card camera- OSI DS6681) It appears as "Digital Camera" in the System Information panel, but it does not appear in finder nor ...
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2answers
40 views

How do I backup and external hard drive (iPhoto Library) to another external hard drive?

My iPhoto Library is on an external hard drive. I want to copy it to another hard drive as a back up. It looks like Time Machine only backups the internal hard drive and selected externals. I don't ...
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4 views

Notify when external drive mounts

Is there an easy way to have my Mac notify me through a Notification alert (through the Notification Center) that an external drive (or any other means of storage, for that matter) has been mounted? ...
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0answers
24 views

My external drive won't mount on my iMac as the “partition map check failed because no slices were found”

Having a problem with my external drive a LaCie 2 TB drive that won't mount on my iMac. When I try to use Disk Utility to repair it it says "partition map check failed because no slices were found". ...
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27 views

Disk not recognized when plugging an external hard drive

Before I give up on my external hard drive, I wanted to give it a shot here. I was working on iMovie with the library being on an external hard drive. At some point during the editing of a project, ...
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0answers
56 views

Windows using Bootcamp won't read any USB memory sticks

I just installed Windows 10 on my MacBook (Early 2015, OSX El Capitan 10.11.2), and after everything set up I tried to plug in my External Hard Drive. I made sure this HD would and does work in ...
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58 views

Time Machine Backup Failing with Error 11

I've been trying to run a Time Machine backup for the last couple of days (OSX 10.7.5 and Porsche LaCie 2TB); however, it has been constantly failing. Console is producing the following crash messages ...
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61 views

External Hard drive are always readonly, even HFS+ and FAT32 format

I am running in to a peculiar problem. I have 3 external hard drives and few weeks back, I may have ejected one of them ungracefully. Ever since, they all are getting connected in read only mode. I ...
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1answer
19 views

Seagate External HD (GoFlex) Crashes Macs

Situation: My most important external Hard drive is crashing my computers. It had my time machine backups and random files stored. I've tried it on my iMac and Macbook Pro. It may be worth noting I ...
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15 views

Create bootable windows on external HDD

Hello I'm trying to create bootable windows on this external HDD http://www.amazon.com/dp/B0046A8MSM/ref=twister_B004DTS99S?_encoding=UTF8&psc=1 but without success. I'm following this tutorial ...
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1answer
187 views

How to remount external drive in OS X El Capitan without rebooting?

I have a MacBook Pro 15 Mid 2014 with OS X El Capitan. When I accidentally disconnect the external USB disk (without clicking eject), I can't reconnect the disk. If I remove and plug the disk back in ...
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46 views

How To Perform External USB Disk Clone

This question is similar to this one: Partitioning Software I have two WD 2TB external USB disks. The first is formatted for use as a backup disk for a Windows 7 netbook. Mac OS Disk Utility does ...
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2answers
16 views

How do I relocate a existing VM with a OS already installed

I have a VM up and running great with Ubuntu installed onto it. I want to stick it on an external herd drive. How can I do that without breaking it? Do I just drag the files, or is there something ...
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13 views

photolibr is preventing my external disk eject

I have my Photos library in an external usb3 disk. Usually, photolibr prevents the disk from ejecting, even if Photos is closed: kukuruzasIII:yoAlcalde_mobile olmo$ lsof | grep DATOS photolibr 504 ...
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31 views

Mac OS X losing files on external drive

I've got a Macbook Pro running OS X 10.10.5, Windows 7 laptop and an external Seagate 1TB HDD (NTFS) which I use for storing files and backups, which I use with both laptops. Now one more time the ...
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1answer
36 views

Strange situation in making backup on an external disk

As the screenshot above shows, tonight, while trying to make a backup of the files on my Mac OS X, Version 10.7.5, Processor 2.4GHz Intel core i5, Memory 4 GB 1333 MHz DDR3 laptop computer, I got ...
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1answer
177 views

cannot turn off spotlight indexing on external drive

I know this question has been asked before, but the solutions suggested are not working for me. I just finished attaching a brand new external hard-drive and waiting for 14 hours for Time Machine to ...
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2answers
71 views

Backing up External Drive without Time Machine

I'm not too familiar with Time Machine. I cannot recall if Time Machine creates full version-controlled images, or just changes what's different since last time. I'm interested in the latter, I ...
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0answers
157 views

Install Bootcamp on external drive where OS X installed

I have 128G SSD internal storage. And wanted to install Bootcamp on external drive (USB storage). Found out that Bootcamp could not be installed on the external drive. So I thought to install OS X ...
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1answer
18 views

NTFS external disc restore trashed items

I guess I deleted files on my external NTFS storage. I think I can see those files in hidden folder $RECYCLE.BIN on this drive. is it possible that the MAC NTFS writing stuff I set up before - so I ...
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1answer
31 views

Time machine: moving a source external disk to a new computer

I have two external 4TB disks, one for data and the other for TM backups. I recently moved from a MBP2010 (10.8.4) to a MBP2012 (10.10.5, fresh install). On the backup drive, TM adds a root folder ...
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2answers
52 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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1answer
529 views

How to rename an external hard drive in Mac OS X?

I have 2 external hard drives supplied by the same vendor. They both have the same name. Using them with the mac is problematic when they have the same name. Time Machine, for example, tries to back ...
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90 views

LaCie External Raid Drive Disappears During Sleep

I have a MacPro with an LaCie external raid drive. About 80% of the time when my Mac goes into sleep mode the drive to just disappear; DiskUtility cannot see it nor can I see it in any utilities. I ...
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1answer
24 views

Splitting Partition On External Drive

I have a 1TB external drive with three partitions: FAT32 for extra storage (~500GB) Ubuntu (~499GB) Linux swap space (~1GB) I want to boot to rEFind and then to Ubuntu from any Mac; preferably ...
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0answers
6 views

Beachball on external hardrive

I have my LaCie external drive running snowleopard because I'm still using Appleworks. Everything has been working great for 10 months. After upgrading to Yosemite whenever I started up with LaCie, I ...
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0answers
12 views

Is there any way to have disk images open in a normal finder window?

Why do disk images open in a finder window without the sidebar? Is there any way to have disk images open in a normal finder window? I find this really inconvenient when I just want to drag ...
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2answers
100 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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36 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 ...
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0answers
76 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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265 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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33 views

Install Windows to iMac internal HDD

I have installed OS X on my external disk from my Macbook Pro. And recently I have installed Windows 7 on my client's iMac. But somehow, after seeing that I can access OS X from external drive. He ...
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0answers
24 views

Segmentation fault spinning up external HDD

Many times, when I compile a self-written program (C/C++) that segfaults for whatever reason, my external USB harddisk (used for Time Machine backups) spins up immediately, and I have to wait (like ...
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2answers
188 views

Yosemite cannot detect SD card

I know their is a flood of these questions but I have a late 2013 macbook pro with yosemite 10.10.5 installed on it. My problem is it won't read some of my SD cards, i've run disk util with the pny ...
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1answer
94 views

Internal vs. External Storage for a new Macbook

I want to get a new MacBook pro, and am confused by the storage options. The Apple website offers 2 different options for storage: 1) Preinstalled internal flash storage (256, 512, or 1 TB) 2) ...
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1answer
119 views

How much overhead (%) space requires migrating a iPhoto library to a Photo library?

After migrating an iPhoto Library to a Photos App Library, they see actually share space by using hardlinks. So even the Finder says each folder use some amount of space, they are actually sharing it. ...
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2answers
40 views

I need administrator password for file management on external hard drive

So I have an external hard drive, my passport, that used to be a Time Machine, but now I use for basic file storage. Whenever I try to add a folder, or manage files, it asks for an administrator ...
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0answers
24 views

What HDD to use as an *external* internal drive instead of optical drive in a MacBook Pro early 2011?

I was wondering if there are any recommendations on which HDD (Brand, Model) is best to be used in a MacBook Pro early 2011 13" (running El Capitan). I'm planning on exchanging my optical drive for an ...
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131 views

Hard Drive: I can see it in /Volumes, but it does not show up in Finder

I'm connecting my external Hard Drive on my Mac. It's a NTFS drive. It used to show up normally on Finder's sidebar and Desktop as well, but it doesn't anymore. But it does show up in /Volumes ...