My external hard drive is not working on my mac.

I have tried all options available such as going on finder and making my hard drives visible and disk utilities

Basically my external hard drive would not eject so i force quit it and the hard drive does not come up at all anywhere on my mac pro OS X version 10.9.4 and it isn't visible in disk utilities no and it doesn't say format either and i have tried it on a windows computer it does not show on their either. the format is Fatdos i think so i can use it on windows and mac and i cant see anything in system reports and yes it is connect by a USB. also it isn't making any noises either

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External hard drive is not working on airport time capsule even after 7.7.2 firmware update.

External hard drive is not working on airport time capsule even after 7.7.2 firmware update.
I have the latest Airpor Time capsule 2gb. I specifically bought it so that I could have an external hardrive set up to wirelessly house my itunes library and movies. When i connect the drive, all i get is that the disk needs to be repaired.
the drive can works fine when connected to the macbook pro and I have run the verify and repair features in disk utility. I have also reset the airport timecapsule as well following these changes and still no change.
The 7.7.2 update says that it addressed the usb issue of not showing the drives but there are still problems as I cannot get it to appear.
Please help.
Thanks

How is the hard drive formatted?
Have you tried using a powered USB hub with the drive when it is connected to the Time Capsule?
(The USB port on the Time Capsule is borderline as far as power is concerned....you may need to use a powered hub.....even if the hard drive has its own power supply)
If the drive is formatted correctly....and....it has ample power, it will "show up" when you open AirPort Utility, click Edit, then click the Disks tab at the top of the next window.
In the example below, my Time Capsule drive is named "Backups" and another drive named "WD Drive" is connected to the USB port on the Time Capsule.
You should see the name of your Time Capsule drive (named "Data" unless you have changed the name) and the name of the USB drive if you perform the same check.
What do you see?

External Hard Drive does not work with Lion

Hi
My External Hard Drive does not work with Lion this message appears:
NTFS-3G could not mount /dev/disk1s1
at /Volumes/My Passport because the following problem occurred:
/Library/Filesystems/fusefs.fs/Support/fusefs.kext failed to load - (libkern/kext) link error; check the system/kernel logs for errors or try kextutil(8).
the MacFUSE file system is not available (71)
can anyone help?

Hi,
See this Discussion:
https://discussions.apple.com/thread/3191198?start=0&tstart=0
Cheers,

My external hard drive is not recognised on my mac book pro

my external hard drive is not recognised on my mac book pro

Hello all -
similar situation. Unplugged external hard drive and all to take the laptop on a trip. On return, I plugged everything back in and keep getting this message:
Time Machine couldn’t complete the backup to “Iomega_Ext_Drive”.
Files can’t be copied onto the backup disk because it appears to be read-only.
You may need to repair or reformat the disk using Disk Utility. If the disk can’t be repaired, you must use a different disk for backups. Open Time Machine preferences to select a different backup disk.
open time machine preferences. -
I tried this and tried "repair" but that didn't work and I still get this message. Any advice? thanks

What should i do if my external hard drive is not detected by my mac

what should i do if my external hard drive is not detected by my mac?
need to have the files saved on it and be able to backup via time machine

Hi:
Here are some of the options I've read about on here that may or may not work:
1. Reset the NVRAM as it may need to be reset to recognize the drive. See below:
http://support.apple.com/kb/ht1379
2. If the drive is a USB drive, put a USB hub between the drive and the unit. As ridiculous as that may sound in some cases it works.
3. If you have some types of hardware problems and want to test them this works:
http://scsc-online.com/Scannerz.html
That's a test tool only. It isn't going to fix anything just diagnose a bunch of possible hardware problems and it costs money, too.
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Backing up to new external hard drive is not working

I just purchased a new 2TB FreeAgent external hard drive. I hooked it up to use as a time machine backup and in the preferences of Time Machine it said that the drive needed to be formatted. I then went to Disk Utility and erased the drive using the format "Mac OS Extended (Journaled)" and gave it a name. Once that was done I attempted to back up again through time machine but it started the "calculating changes..." at 23% and stayed there all night. I do not know if I need to reformat it differently or why it is not working.... any suggestions?

jwsand wrote:
I tried to hook up the external hard drive to a different computer (imac) and it worked without any problem.
Did you cancel the backup it was attempting to do, before disconnecting it? If not, did you eject it first?
Do you mean it ran backups? Or just that it was recognized? Those are very different.
The mac pro has 2 internal hard drives. One for the OS and the other for a tm backup.
Be sure that second drive is now excluded from TM Backups via TM Preferences > Options. If TM is trying to back up the internal disk's TM backups onto the new external, that might explain why it's confused (I know I am!)
I attempted to hook up this external drive to a second external tm back up
Do you mean you've "daisy chained" it, to yet another disk also containing TM backups?
and noted the different disk in the tm preferences.
Do the two disks have different names, and does TM Preferences show the new name? If not, the preferences file may be corrupt. In that case, do a "full reset" per #A4 in the Troubleshooting Tip.
Do you have any idea why this drive would not work on my mac pro but does work on my imac?
I'm not entirely sure that's true. Please clarify exactly what you're doing; what's connected where and how, and what's being backed-up.
On the Pro, you have 2 internals and how many externals? Which ones are being backed-up (ie, not on the exclusion list in TM Preferences > Options)?

External Hard Drive Will Not Work

I purchased the recommended 1TB WD hard drive. It worked for a couple of days, recorded some programs-- all of which froze after a few minutes, and now my DVR repeatedly shuts down and reboots when the external drive is plugged in. Here's the message I get:
the set-top box will reset because an external hard drive was improperly disconnected
The only way I have disconnected the drive is by going into settings and clicking on "EJECT" as recommended.
Would someone please tell me what is going on here? Thanks.

Prof_Ahab wrote:
I purchased the recommended 1TB WD hard drive. It worked for a couple of days, recorded some programs-- all of which froze after a few minutes, and now my DVR repeatedly shuts down and reboots when the external drive is plugged in. Here's the message I get:
the set-top box will reset because an external hard drive was improperly disconnected
The only way I have disconnected the drive is by going into settings and clicking on "EJECT" as recommended.
Would someone please tell me what is going on here? Thanks.
Sorry to hear about the troubles you are having with the drive. One thing you can do to try to correct the drive issue is to hold down the power button on the drive. You will get a pop up message that an unknown storage device has been found. Click to accept the new device. The drive should now be connected. Go to the main menu of the DVR box and select the option for DVR. Go to expanded storage and format the drive. Let us know if further assistance is needed.
Anthony_VZ
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Seagate external hard drive is not working since I upgraded to yosemite. Can some one help me?

I can't connect my seagate external hard drive since I updated to yosemite. Im getting error code 71, can someone help me?

Try restarting with your drive plugged in. I have a very old 100GB seagate drive and it has been working fine for me so I assume yours would too.
-crazy

External Hard Drive icon not working on desktop

My "MAC HD" and an external hard drive I have called "Music" show up on the desktop, but are not clickable.
I cannot move them, open them, or select them in any way.
Also, if I now drop documents onto my desktop, they show up in the finder on my desktop, but not actually on the desktop itself.
Can anyone help ? This happens regularly. My only solution thus far has been to restart.
I don;t want to keep restarting. I would like to know what the problem is and how to solve it permanently.

No. I just checked and it's not there. . .
BTW, Thanks for your quick response!!!!
The circle blue light rings are illuminated on on the front of the Western Digital External but interestingly enough, the inner ring which is usually as bright as the outer ring is dimmer? Not sure what that's indicating. Maybe it's just reflective to the point that it's no connected to the eMac current;y. . .

My external hard drive is not recognize on my mac

What software can I get to try to back up the things that are on my WD external hard drive that is not being seen on my Mac or through time machine. My hard drive is spinning but not recognized.

I am curious if you ever got this problem fixed. I bought a WD external drive a month ago and recently my iMac will often not recognise it. The light on the drive is on, but it doesn't seem to mount.

External hard drive doesn't work on other macs.

So I've got this external hard drive (WD Elements) and basically have only used it for my macbook pro. Today I tried it with an imac, and it didn't work. The computer recognized it, but it wouldn't let me move any files onto the hard drive. There was no error message or anything; it just didn't work and made that ping sound. You know the one you get when you clicked somewhere you weren't supposed to? That sound.
I thought maybe it was a formatting thing, because the disk utility verification said it's "formatted for use in Windows 7," but then how is it working on my macbook?
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It sounds like your hard drive is formatted NTFS, Mac's can read those type of drives, but unable to write to them without special software.
Take a look at this link, http://www.macbreaker.com/2012/02/enable-write-for-ntfs-hard-drives-on.html

External hard drive does not work

I bought an external USB hard drive. At first, it worked. I could see an icon on my desktop and could load some stuff onto it.
Then I unplugged it (probably the wrong way, I just unplugged it) and when I replugged it, I could not see the icon anymore and when I go into the system specification/USB specs, I cannot see anything plugged in the port.
When I plug the drive in my old iMac, it work. I can see the icon AND the stuff that was previously loaded on the drive.
What should I do?
Thanks
iBook G4 Mac OS X (10.4.7)

The case's chipset(s) probably limit the size of drive/partition it can use.
If you need a larger drive than the case originally held, you probably need
to get a newer external drive enclosure that supports a newer/larger drive
of the type and kind you need.
As to the other issue ahead of this; if the hard drive in use is not discon-
nected properly, damages can result and you may need to use disk repair
tools or utilities to see if they can find the drive or fault behind this issue
and repair it. Maybe diskwarrior; or perhaps even the disk utility in the OSX
version the problem happened to occur. If there is a bad sector or startup
section in the suspect drive, it may be possible to find the drive using a
utility and see if it can be fixed; or it may need to be reformatted.
Pulling the plug on an attached drive is a bad idea; you need to drag the
icon of the external drive to the Trash, or use the finder's eject feature
to unmount these drives. They are not randomly hot swappable.

My Seagate Expansion 500GB external hard drive no longer works with my Mac

Hi
i have had a seagate expansion hard drive for the last year ish and it has worked as a time machine without any problem. when i first got it i had to format it to windows but that was simple and worked well. recently i unplugged it for a few weeks and have recently plugged it back in. now it won't register as my timemachine or show in finder.
I went into disk utilities and clicked 'repair' then click 'verify and these are the two errors i recieved.
Verify and Repair volume “Jon & Sarah Time Machine”
Checking Journaled HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Invalid index key
Rebuilding Catalog B-tree.
The volume Jon & Sarah Time Machine could not be repaired.
Error: Filesystem verify or repair failed.
Verifying volume “Jon & Sarah Time Machine”
Checking Journaled HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Invalid index key
The volume Jon & Sarah Time Machine needs to be repaired.
Error: Filesystem verify or repair failed.
I am hoping that someone has had the same issue and is able to help me with this problem.
all my back ups are on the hard drive so i really don't want to have to format it as i don't know what i will lose.
I have checked for updates for my Mac and it says there are none.
cheers
Jon

You need something stronger, such as DiskWarrior, to repair the HD.

How can I recover file that are on my external hard drive but not showing up on mac?

I have copied pictures and home videos from an old hard drive to my newer, larger hard drive. And now, i can't see any of the videos when i open my Seagate 4TB BackUp Plus drive on my mac. Someone Plz save me!!!!!

Open Disk Utility in Applications/Utilities.
Check format for the Seagate.
I'm guessing you didn't format the drive for Mac.
You might need to reformat. This will erase all contents on the drive. After reformatting, go back to the old drive and copy over the files again.
Format the external drive as Mac OS Extended (Journaled) - Partition Map Scheme: GUID

How can I share iPhoto library between users on same mac. External hard drive has not worked.

I need to share and edit photos between users on one mac. I have tried sharing the file on an external drive but this has caused all sorts of problems with photos disappearing and/or not being able to be edited. I was hoping iCloud sharing or family would work but being on the same machine I need the main iCloud account active at all times. This is a workplace so the second user has minimal access permissions.

okay I'm not sure if I'm missing something, but i just imitated the same scenario on my mac and it seems to work fine. I made sure to change permissions of the shared folder AND the the actual photo library. I gave everyone access to everything (as far as the folder & library was concerned). I uploaded & viewed from both accounts. You might want to view permissions of your entire disk in disk utility to make sure there isn't an error.. Make a backup first though.
The permissions will not stick. Earlier iPhoto versions did allow this, because iPhoto did not write to an iPhoto Library if you only wanted to browse it, but with iPhoto '11 the behaviour changed. Opening an iPhoto Library from a different account will write files with changed ownership right into the library, and that will cause problems if you edit or tag photos from a second account. The document I linked to in my earlier post is Apple Support's answer to these permission problems, when using a shared folder: iPhoto: Sharing libraries among multiple users

My external hard drive is not working on my mac.

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