Seagate 2TB external drive will not mount - Tried many things

Question

Seagate 2TB external drive will not mount - Tried many things

I have tried many things, but I still can't get my Seagate 2TB external drive to mount to my early 2011 MacBook Pro running Lion 10.7.2.

This external drive has always mounted to the same MacBook Pro as soon as I plugged it in and I have backups from this MBP on this external drive as well as 3 other windows machines. The seagate external drive has mounted after backing up a windows machine then plugging it into this MBP. This Seagate external drive is not faulty because when I plug it into a Mac Mini running OSX 10.6.8 it mounts perfectly and I can access the files.

I have started the macbook pro in safe mode, shut it down and performed a SMC reset, then shut it down and performed a PRAM reset and it still won't mount the seagate external drive.

I have opened disk utility and tried to manually mount the external drive and that didn't work. When I ran "verify disk" it said errors were found but not fixed because read-only. When I run "repair disk" I get "volume repair complete." "Updating boot support partitions for the volume as required." However the external drive never mounts.

Any help is appreciated!

MacBook Pro, Mac OS X (10.7.2), 8GB Ram

Posted on Dec 27, 2011 8:28 AM

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Answer 1

Dec 27, 2011 9:51 AM in response to shanefrommurfreesboro

Anyone? Anything? 😮

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Answer 2

Dec 27, 2011 9:54 AM in response to shanefrommurfreesboro

Which Seagate do you have? I was looking at the most recent model, and on Amazon it has USB 3.0 compatibility issues with the Mac. In fact, Amazon has pulled it from sale (though, they still offer it for sale from other vendors). Anyways, some more info will be helpful.

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Answer 3

Dec 27, 2011 10:01 AM in response to OrangeMarlin

Thanks for the reply!

I have the Seagate FreeAgent GoFlex Desk, part number 9ZQ2N2-500 2TB

The thing that's so perplexing is that it previously worked with the very MacBook Pro that won't mount it now.

As I'm doing more research, it looks like it may have something to do with 10.7.2

Thank you!

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Answer 4

Dec 27, 2011 2:49 PM in response to shanefrommurfreesboro

Anyone?

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Answer 5

Jan 2, 2012 11:30 AM in response to shanefrommurfreesboro

I'm continuing to have this problem, am I the only one?

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Answer 6

Jan 3, 2012 6:12 AM in response to shanefrommurfreesboro

Problem Solved!

I uninstalled Tuxera NTFS and restarted my MacBook, plugged in the external hard drive and it was recognized after about 20 seconds.

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Answer 7

Lexiepex

Level 6

14,102 points

Jan 3, 2012 6:50 AM in response to shanefrommurfreesboro

Why did have Tuxeira NTFS installed ???

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Answer 8

Jan 3, 2012 7:49 AM in response to Lexiepex

My apologies, I was on the Tuxeira website researching the NTFS when I posted that. It was the Paragon NTFS and when I uninstalled it, my external drive mounted perfectly and I could access my files, but I can't write to it. I just went to Paragon's website and downloaded the latest trial version and now my external drive won't mount.

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Answer 9

Jan 9, 2012 8:22 AM in response to Lexiepex

This worked for me, I can now read and write:

nmondal

Re: NTFS drive does not mount under Lion.

Jul 24, 2011 11:54 PM (in response to mandy2010)

Hi mandy2010,

here are the things you *should* follow step by step.

Assuming you have ntfs-3g installed, then,
Go to System Preferences
Find ntfs-3g and macfuse.
Uninstall them
Delete the prerences options of macfuse
Now reboot the system.
Install ntfs-3g from : http://www.tuxera.com/mac/tuxerantfs_2010.12-RC.dmg
Install http://www.tuxera.com/mac/macfuse-core-10.5-2.1.9.dmg [VERY IMP STEP]
Reboot the system.
Now insert your USB NTFS hard drive, and it should get mounted for read/write access.

Please note that it would give a nagging warning

NTFS-3G could not mount /dev/disk...

at /Volumes/.... because the following problem occurred:

Did not receive a signal within 15.000000 seconds. Exiting...

And it is fine, the read write is proper. Do not worry. Feel free to bug me, in case anything needed.

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Answer 10

bbbungy

Level 1

0 points

Aug 30, 2012 2:10 AM in response to shanefrommurfreesboro

you have to share your external hard drive doesn't matter what brand, connect the hard drive to your windows computer/laptop and open the properties on the hard drive and select share in all tabs marked with share you should find two of them, select all boxes within the tab i have four external hard drives that would not mount to my mac this solved the issue on all counts and they all work perfectly. You do not need to delete files from your NTFS or mac - this will work

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Answer 11

bbbungy

Level 1

0 points

Aug 30, 2012 2:12 AM in response to bbbungy

i am using lion 10.7 on my mac book pro

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Answer 12

anhkit

Level 1

0 points

Aug 9, 2013 12:58 PM in response to shanefrommurfreesboro

hi people,

here's my answer, and it works for me.

you can download and install NTFS for Mac OS X.

here's the important point:

when switching from windows to mac, you MUST eject the drive from windows completely before you bring it over to your mac.

that's it!!! if you don't eject properly your mac will not mount it.

hope that helps.

anhkit

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Answer 13

mfaasse

Level 1

13 points

Mar 4, 2014 2:40 PM in response to shanefrommurfreesboro

As @anhkit said, there is something about ejecting the drive from Windows that makes the Mac able to mount it properly. When my drive doesn't show up on my Mac, I plug it into a Windows machine, then try to eject it. If it doesn't eject, restart the Windows computer, and try again. This should allow your Mac to mount it properly.

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Answer 14

Mar 4, 2014 3:42 PM in response to mfaasse

Hmm, this thread is 3 years old. 😐

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Answer 15

imseeker

Level 1

0 points

Mar 8, 2014 8:13 PM in response to PlotinusVeritas

and given I'm having the exact same problem right now, this thread is still pertinent. Hope I can get my external drive mounted.

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