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

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Time Machine backup from external hard drive stuck in trash

I got a new iMac after my old one died. As my old one was dying I made several Time Machine backups to a 1T G-Drive external. Unfortunately, I must have done it incorrectly because the backups have ...
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2answers
27 views

How to repair or back up external hard drive when disk utility can't repair it?

I have an external hard-disk with a single Mac OS Extended partition. This disk stopped working a couple of days ago. I tried to repair the external hard drive with disk utility but no luck. The error ...
2
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1answer
28 views

exFAT-formatted external drive loses folders

I have an exFAT-formatted 3TB USB drive connected to an iMac running 10.10.3. The system lost power and when it came back up, the drive wouldn't mount. I tried Repair Disk in Disk Utility, and it ...
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1answer
37 views

USB hard drive permissions

I have a JBOD with a couple of disks in that are mirrored using Disk Utility and have a single partition formatted as HFS+. The purpose of this drive is to hold an iTunes library (sharing to AppleTV) ...
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1answer
30 views

How do i get old external drive data onto new external drive (but not also on computer HD) [closed]

EDIT:Let me try again. Sorry guys I'm fairly adept at understanding things in regards to these machines, but I'm by no means a pro. Just looking for some advice. MacBook Pro 2007 ==> Backed up to G ...
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1answer
54 views

Is it possible to tell if a Macbook hard drive was booted internally versus externally (usb, firewire, etc.)?

Is it possible to tell from system.log or other logs whether a macbook pro hard drive was booted internally or taken out and booted externally (from USB, for example) ? I'm thinking the "BSD root" or ...
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1answer
26 views

Software to duplicate external hard drive formatted ExFAT

I have an external hard drive with a 2.9TB ExFAT partition that I keep my photos and other media on. (ExFAT so that I can also see and edit my media on Windows computers.) I just bought a second hard ...
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4answers
30 views

Extract .zip directly to external hard drive

I have a huge .zip which extracted takes up to 100 GB, and storing that amount of data on my MBP's SSD is not an option. Is there a way to extract a zip file directly to an external hard drive, ...
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2answers
36 views

how to see all files on external hard drive

I have 200g of content on my 500g External Hard Drive but according to "get info" 471g of space is being used up, what am I not seeing? (To arrive at 200g I manually added all folder sizes using 'get ...
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1answer
26 views

Can files be exchanged between FAT32 and HFS+ partitioned drive?

I just got a LaCie 1TB external hard drive and I have a MacBook Air with OS X 10.8. I often exchange movie and music files with friends that have PCs. If I were to partition my drive to have 250 ...
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0answers
68 views

Boot external Windows 8.1 installation on Mac Book Pro Retina 2015 with Yosemite

In the past I’ve been able to run Windows 8.1 on a Mac Book Pro Retina Mid 2012 installed on an external hard drive using WinToUsb. I had OSX Mavericks installed on the internal drive. After turning ...
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2answers
72 views

Can't see a specific external hard drive

I was trying to make an NTFS hard drive writable on my macbook. I tried the way mentioned in this link: https://www.maketecheasier.com/write-ntfs-partition-os-x-yosemite/ Now I can make changes on my ...
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1answer
29 views

Can't Boot from Snow Leopard anymore after having installed mavericks on an external HDD

I have a Macbook Pro running Mac OS X 10.6. I wanted to test how mavericks works on my computer so I downloaded the OS and then I installed on a external USB HDD. Everything work as expected. I can ...
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1answer
47 views

Importing Photos from Lion to Yosemite Photo Library to External Storage Device

I recently upgraded to Yosemite. Before that, I used to have my library stored on my external hard drive. Now I am panicking because while I was able to move my Yosemite Photo library to my external ...
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2answers
61 views

Installing Windows on External HD. Other guides to difficult for me

I have a Macbook Pro Retina 13" mid 2014 model. I have 256 GB Disk Space and want to install Windows mainly for gaming but other programs as well but I do not have enough space for my needs. My ...
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12 views

External FW800/USB 3.0 drive slows down many system operations on my MBPs

I have experienced this issue for a long time on my old 17" MacBookPro8,3 and now seeing it on a new 15" MacBookPro11,5. Often the drive connected now through USB 3.0 will spin-down to rest state when ...
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0answers
13 views

Connect to external drive wirelessly, securely and easily

I'm moving from using a laptop as my sole computer (MBP, early 2011) to having two active computers (the MBP and an iMac). Instead of keeping all my data on my MBP, I'd like it all on an external ...
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2answers
90 views

USB Flash drive not mounting OS X

Some months ago I bought a USB flash drive 16 GB, and I have used it on my Windows machine with no errors or bugs, whatsoever. Since that I need to move some files from my Mac, the flash drive does ...
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16 views

wd passport external drive is suddenly absent from desk top

HI have been backing up my data for 4 years with a WD Passport. Suddenly the icon is missing from desk top. I have checked the appropriate box in Finder preferences. How can i get it back on line?
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2answers
43 views

Will upgranding my MBP to an internal SSD, improve also speed of reading external non SSD HDrives?

So, I'm thinking of upgrading my MBP (13' late 2011) with an internal SSD drive. I'm wondering if the increase in speed of read and write on the SSD internal drive, will increase peroformance and ...
1
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1answer
68 views

Why there is a large lost+found folder on external disk

I brought my MacBook Pro 1 year ago, at that time it runs OS X 10.9 . At that time I connected an external 2TB HDD (HFS+ single partition, not connected all the time) to it via USB as a Time Machine ...
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1answer
72 views

How much faster is an external SSD than external HDD if internal drive is SSD?

I'm running intensive animation software and am having speed issues. At the moment I'm just working from an internal SSD. How much faster should it run if I put the project files on an external HDD? ...
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1answer
35 views

The disk “Vol” couldn’t be ejected because “Terminal” is using it

I have connected an External hard disk to Mac and just issued command df -h in terminal. When I tried to eject drive it shows the error. After closing terminal, I could eject it. But is that really ...
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1answer
40 views

How can i get itunes to backup my iphone with limited disk. I linked the backup dir to an ext drive with space yet still won't backup?

On OSX yosemite, a machine with limited disk space free. In order to backup my iphone, I've linked the ~/Library/Application Support/MobileSync/Backup dir to an external drive. iTunes, correctly ...
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0answers
20 views

Time Machine backup to run my MacBook on another

My MacBook is in the shop for repair. I have my Mom's MacBook, but the hard drive has failed. I'm wondering if I can use the time machine backup of my computer via USB to basically run my hard drive ...
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81 views

Unable to use G-Drive 4TB external drive for TimeMachine backups

I want to use my G-Drive 4TB external drive for my TimeMachine backups. I have a iMac 27" and a MacBook Pro, both are running OS X Yosemite. I have tried almost everything (I think...) but the drive ...
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2answers
91 views

Can I keep 1 specific backup on an external hard drive as it fills up and deletes older backups? [duplicate]

I've just moved 262GB of photos to a new external hard drive (1 TB), freeing up my MacBook Pro, 1 year old, which was dangerously low on space. I first backed them up on an existing external hard ...
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8 views

Files damaged when transferred from external HD

I have backed up my zipped , docs , excels and text files on my external HD , this external HD formatted with mac journaled and encrypted. Some time I work with these files yesterday I transferred ...
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0answers
36 views

How can I use my SanDisk Connect Wireless Flash Drive with my 12" MacBook

I can access the drive on my iPhone, iPad and Android. I am having trouble figuring out how to get it to work with my Mac I am using Yosemite and I've done the latest firmware update on the drive
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1answer
87 views

USB 3 HDD on Apple Thunderbolt Display

I have an Apple Thunderbolt display and really love it - only that the USB ports are only USB 2! I have read this question, but is there any new development on connecting a USB 3 drive to a ...
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2answers
58 views

Install application on external SSD and load from external SSD to RAM?

I want to install some applications on an external SSD attached via a USB 3.0 interface. As I know from the apple site, I can move my iTunes and photo library to an external drive. (support apple ...
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1answer
40 views

Unable to change volume size on WD My Passport Wireless

I have been trying to partion my WD My Passport External harddrive that has already got data on it. All of the guides I see on the internet tell you to resize the current volume to do so. I don't have ...
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1answer
69 views

Run OSX on external drive

I use a Surface Pro 3 (will upgrade to the 4 in a few months hopefully) and want to develop iOS applications but I don't want to buy a Mac. I've heard about Hackintosh, but I was wondering: can I ...
1
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1answer
63 views

Can I backup a Time Capsule to a HDD drive connected to its USB port?

I have a 2TB Time Capsule and multiple external HDDs. I recently bought a 4TB external drive, now I'd like all my files, in all my HDDs to go to the 4TB drive that is connected through USB to the ...
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1answer
53 views

Transfer external hard drive Time Machine data to a replacement

My Western Digital external hard drive is full. How do I transfer data to its replacement? I want all the data to be saved to the new external hard drive so Time Machine will continue where it left ...
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1answer
217 views

NTFS support for Mac

I am long time windows user with who just started using Mac. All my external drives(1 & 2tb 2.5 portable drive ) are formatted in NTFS. But I found that my mac cannot read or write on that. So, ...
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1answer
210 views

My MacBook won't recognize my external hard drive (Passport - that I use to back up the Mac!)

I'm not techie at all. But I manage the basics. I've always backed up my MacBook (2009) on a Passport. I just plug it in while the Mac is connected to power source & click the icon & it ...
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213 views

Errors copying files to external drive

I back up my data on NTFS Windows formatted external hard drives (different brand names), cloning each drive to protect against hardware failure. I copy from Mac, Windows, Linux, or Android machines ...
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0answers
24 views

Backing up data to an NTFS drive

I have a 2TB external hard drive that is about half full of various photos and other things that I use it to hold. Now, I'd like to backup my MacBook Air to it, as I have no more room on my computer. ...
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0answers
61 views

Pixelmator: I cannot open the image from Photos library that is on the external drive

My Photos Library is Inactive when I try to open an image from external drive, as it is on the image below. What should I do to be able work with images from my Photos Library? My photos Library is ...
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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
581 views

Apple Time Machine doesn't see my WD My Passport 2 TB using USB 3.0

I have Yosemite 10.10.2 on my Early 2008 24". Time Machine has been backing up to my WD external hard drives for years. I just purchased a new 2TB My Passport using USB 3.0. It's formatted in Mac ...
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2answers
156 views

External HDD cannot be mounted

I really have a problem with my HDD. I was working on it, it was my local HDD installed on a MacBook 2009 but some day my Mac turned off suddenly and it didn't work again. I installed OS X on a new ...
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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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70 views

how to mount internal hd after booting with external drive?

I am running macosx 10.6.3 and trying to mount/access the internal hd through diskutility: it does not show up here. I tried this: ...
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1answer
400 views

USB 3 not working on Yosemite MacOS 10.10.2

I have a MacBookPro11,3, Intel Core i7, 2,5 GHz, ROM: MBP112.0138.B14 with Yosemite natively installed. I also use FileVault. Here are my problems with external USB 3: One of my FAT32 external hard ...
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2answers
172 views

Simple Low-Cost Network Backup System - Drobo? Alternatives?

I'm hoping to graduate from manually copying important files to multiple external desk or portable drives; affordably. We have 3 Macs and an iPad or two. I have just now learned about Drobo, who as I ...
0
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1answer
91 views

Treat external HD like internal

Out of necessity I decided to migrate all my personal/work data to a new external hard drive (HFS, encrypted) and left the internal HD for the OS. Because of the fact, that I am now fully reliant on ...
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35 views

Data spread on two disk, but only one Time Machine backup

I have an MBA with 500GB SSD; However I have 850GB of data; I would like to split the data to something like 300GB in the SSD and 550GB in an external drive; And I would like to have one Time Machine ...