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Questions tagged [external-disk]

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

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0answers
224 views

Stop iTerm2 from using disk (disk cannot be ejected)

How can stop iTerm2 from using the mounted disk I cd'd into? Sometimes, even when i cd out, it's still blocking the disk. I have to ⌘-Q the entire program which is very irritating. It's just idling ...
4
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0answers
994 views

Eject / unmount ghost external disk on macOS

I use MacBook Air Mid 2013 (1.3 GHz Intel Core i5, 4 GB 1600 MHz DDR3, Intel HD Graphics 5000 1536 MB, 128GB flash storage) running macOS Sierra 10.12 $ sw_vers ProductName: Mac OS X ProductVersion:...
3
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0answers
117 views

Recover data from external hard drive partition Mac OS X

A couple of weeks ago, I dropped my external drive while a program was writing data to it. The drive seems to spin up fine, without beeps/scratches. The drive also has EFI and Recovery partitions. One ...
3
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0answers
97 views

Can I put my Photos library on an external hard drive also used for Time Machine?

So, I am new to Macs, and I have a MacBook Air. I've got lots of phots to import into the Photos program, so I decided to stick them all on an external hard drive. I have also used that hard drive ...
3
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0answers
341 views

USB Drives not showing up after Mac was sleeping

I am constantly encountering the following problem with my Mac(s). This has been happening with two different Macbook Pros (13" late 2011 and 13" 2017) with numerous MacOS versions, including the ...
3
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0answers
102 views

Directory is not recognised on macOS but works well on Ubuntu and Windows

I have a removable hard drive in NTFS format that is connected to macbook pro through usb. For some reason finder doesn't show one of the directories. First I thought that I removed it by mistake, ...
3
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0answers
802 views

USB-3 drive ejects unexpectedly while writing large amount of data on it

I have a 5 TB Seagate external drive connected to a 2012 MacBook Pro (non Retina) through a USB-3 connector that always gets ejected while I am copying files to it. When I try to copy large amounts of ...
3
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0answers
196 views

External USB3 hard disk not mounting (10.11.6)

I have an external USB3 hard disk which used be my Time Machine backup drive. It is not mounting in Finder, but is showing up if I diskutil list. It sounds like it wants to mount - in fact, it sounds ...
3
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0answers
1k views

How can I repair hdd using Disk Utility if First Aid options (Repair, Verify) are all greyed out?

Would really appreciate any help in fixing an external drive so can use with my Mac again. I had a power loss & when computer rebooted it was unable to see the attached Freecom 320Gig Hdd (FAT32 ...
3
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0answers
156 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 ...
3
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0answers
1k views

Spotlight says it is indexing an external drive, but actually no search

Spotlight says it is indexing: % mdutil -s /Volumes/TOSHIBA\ EXT /Volumes/TOSHIBA EXT: Indexing enabled. There is a .Spotlight-V100 folder: . ├── Store-V2 │   └── BC758E30-9A07-4193-BEE7-...
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0answers
7k views

fsck not working to fix corrupted external drive

I am using an early 2011 MacBook Pro with the Mavericks OS. I've researched a similar issue on an internal drive but As far as I know, being in Single User mode won't help my situation. One of my ...
3
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0answers
269 views

Encrypted External Drive Using Apple's Password Generator and Forgot the Password: Can It Be Salvaged?

I have a partition on an external HD with some Time Machine backups. I decided to encrypt the partition using Finder and used Apple's built-in password generator to create the passphrase. ...
3
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0answers
411 views

Raid two external hard-drives with read/write support on Windows & OS X

I have a USB 3 HDD enclosure that currently has two 1TB drives in it. I am looking at buying another external USB 3 HDD drive (not an enclosure). I am currently running the external enclosure with the ...
2
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0answers
16 views

Finder thinks there are many nonexistent volumes named “m”

I have a clumsy but mostly working AppleScript that ejects all partitions on one of my external drives except for the partition called Data OWC4_500. The first commands in the script are tell ...
2
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0answers
1k views

Mac asks me to run Disk Utility in Recovery, while in Recovery

I have a WD EasyStore Drive, and for some reason it was bugging out with Time Machine today. I decided to run First Aid on the drive and it found a corruption it wanted me to fix via Recovery mode. ...
2
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0answers
39 views

Error Code -36 Copying Files from Windows NT Formatted Drive to exFAT Drive (select files only)

The gist of the problem is this: I have a large amount of video and audio footage that I need to consolidate from multiple drives - namely this Windows NT Filesystem formatted Seagate Expansion Drive ...
2
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0answers
27 views

Why am I receiving this error when attempting to unmount external CF card?

Sometimes I receive the following error when trying to unmount an external USB, CF, or random drive: dissented by PID 17728 (/usr/bin/login) I attempted to cd out of the drive directory, and into my ...
2
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0answers
574 views

External Hard Drive Corrupted, Invalid Record Count

I have an external hard drive that I unplugged without safely ejecting and now it won't mount. I can see it if I write diskutil list, but when I try to mount it fails. It is a WD My Passport Ultra. ...
2
votes
0answers
462 views

How to remove/eject non-existing External devices from Disk Utility?

For some reason Disk Utility (16.0) didn't eject my HDDs correctly and show the list of ghosts external drives as per below image: despite I've no any external hard drives connected. Ejecting them ...
2
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0answers
1k views

How do I mount an encrypted disk in single-user mode?

How do I mount an encrypted disk in single-user mode? I tried using one of the answers to “How can I mount an encrypted disk from the command line?”; but when I tried using “diskutil” as suggested, I ...
2
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0answers
439 views

reformat a GPT external HDD to MBR/exFAT

I am currently looking for a solution (if it exists) to change my external 4 TB SATA HD from a GUID Partition Table to an MBR with an exFAT volume. I did not see an already answered solution but if ...
2
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0answers
412 views

External Drive Encrypted Journaled - Show Password Hint

I encrypted an external hard drive using MacOS Journaled Encrypted about a year ago. I'm confident that I was prompted to provide a password hint when I entered the original password and formatted the ...
2
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0answers
40 views

Store infrequently used files on external HDD

Is there a utility that enables storing infrequently accessed files from a Mac on an external hard drive to free up disk space similar to the feature that moves such files to iCloud? I would like ...
2
votes
0answers
247 views

Lost Partition on External Hard Drive When Setting Up Time Machine

I had an external hard drive with two partitions (Thing1, Thing2). Thing1 contained manual file backup data and Thing2 was empty and was my targeted drive for Time Machine. I opened Time Machine and ...
2
votes
0answers
500 views

External hard disk not mounting

I have a WD My Passport Ultra Hard Disk. I am trying to use it on El Capitan. Its not showing up in the Finder. When I open Disk Utility, it just keeps loading forever and does not show any ...
2
votes
0answers
945 views

External hard drive : Problems were found with the partition map

I have an external hard drive which carries all my most precious files (some are backed up on a second hard drive, but not terribly recently). I decided to "encrypt" this hard drive (which I ...
2
votes
0answers
47 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 ...
2
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0answers
654 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 folder....
2
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0answers
200 views

How to Restore the Mail Symlinks to External Drive on 10.11?

My Mac Mail has been working using an external drive for the library and all messages since 2013. However I upgraded to 10.11 today and need to find a way to reference everything on the external ...
2
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0answers
303 views

Boot external Windows 8.1 installation on Mac Book Pro Retina 2015

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 ...
2
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0answers
66 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 ...
2
votes
0answers
6k views

Disk Utility: Invalid Disk Label @ cksum mismatch

I have a WD external hard drive. I've been running the routine tests to make sure all my stuff is safe lately. In Disk Utility, I did Verify Disk on both the disk itself as well as the main partition, ...
2
votes
0answers
2k 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 ...
2
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0answers
3k 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$ ...
1
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0answers
11 views

External HD (Time Machine) sleep issues

I have a 4TB WD external hard drive with three partitions on it, one being a Time Machine partition. When a Time Machine backup is running and the computer goes to sleep, it triggers a few different ...
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0answers
13 views

Are USB ports on a Thunderbolt dock inherently more reliable than USB ports on a USB dock?

This question refers specifically to the use of external 2.5" drives, spinning or ssd. External drives on usb hubs we all know are very flaky, even for powered hubs. Surprised I couldn't find an ...
1
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0answers
15 views

Unable to view Trash on APFS-formatted external drive

I am on macOS Mojave running iTunes with its library stored on an external drive. Both my main machine and external drive are formatted in APFS. When I delete a song on iTunes, the file never gets ...
1
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0answers
25 views

MacBook Pro: Erratic Trackpad behavior when an external 3.5" drive is connected

When I plug my external 3.5" hard drive into my 13" 2016 MacBook Pro, the Trackpad becomes very erratic and difficult to use. The drive is housed in a powered enclosure (brand Integral). Other ...
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0answers
66 views

macOS Mojave Command line: How to mount drive but NOT EFI and hidden partitions

If I connect a external GUID-Formated Mac Drive, the Finder does mount all partitions except the "hidden" ones EFI and if existing "Recovery HD". That's fine so far. If I unmount the disk in the ...
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0answers
25 views

Cannot mount external drives or flash drives

I tried multiple file systems and multiple devices, none of them will mount. I also tried looking for fsck (not running), resetting the NVRAM (and restarting the Mac of course) and it still doesn't ...
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vote
0answers
37 views

Can't update to Mojave with an external SSD

I have a 2014 Mac Mini. I've seen a number of these issues but haven't found anything that could help. When trying to upgrade to Mojave, I get: you may not install to this volume because the ...
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0answers
45 views

Eject an external disk after improperly disconnecting it

I have a repeatedly run into this problem. On the one hand we could say, "always remember to eject your external drives before removing them". However, it's a matter of fact that I will forget, at ...
1
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0answers
42 views

Time Machine for reformatted external FileVault drive: how to explore files in backups; make future backups incremental from there

After the latest backup of an FileVault-encrypted SD was made on TimeMachine, I manually moved the its contents to another disk, then reformatted it, again as encrypted volume, and moved the file ...
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0answers
448 views

Multiple “Disk not ejected properly” messages during sleep

When I hook up a WD My Book 3TB external hard drive to my 2016 MacBook Pro via a third party USB-C to USB-A hub and let the computer sleep during the night, this is what I’m greeted with the next ...
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0answers
1k views

How far is my Time Machine “preparing backup” step?

I want to do a Time Machine backup and it's not the first time I do it in this external hard drive, so Time Machine is doing the "preparing backup" step since a few minutes. As it's been quite long I ...
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0answers
18 views

Can I eject and remount an external drive Time Machine is backing up?

If I include an external drive in my time machine backup, can I be sure it will always be backed up any time it's mounted? What if I dismount it and then later remount it? Will Time Machine gracefully ...
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0answers
71 views

Upgrade a USB install of Sierra to High Sierra. Possible?

I was recently given a Macbook Air 2012 with a malfunctioning SSD (common problem in this model -- SSD is recognized as 33 kB SandForce disk), so I decided to install and run macOS from a USB stick. ...
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0answers
112 views

PCMCIA USB 3.0 card for Mid 2010 Macbook Pro

I had an 17 inch Mid 2010 Macbook Pro (MacPro6,1) that had 3 USB2.0 ports, and a 34PIN expressCard slot. I heard one way to get USB3.0 I/O for this machine is to use a USB 3.0 PCMCIA expressCard. ...
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0answers
292 views

Two computers, one External Hard Drive, two different operating systems with Time Machine okay?

We have two computers, an old MacBook Pro running El Capitan and a 2014 Mac mini running High Sierra. They each need about 600-700 GB to back up. I purchased a 2 TB external drive and was just ...