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Q: Seagate External HDD won't show up.

Hi.

I have a 1TB Seagate Back up Plus external harddrive, and it wont show up in my Mac Pro.

The Mac Pro is the 2006 Intel Xeon model running 10.6.8 Snow Leopard. The System requirements for the external HDD are snow leopard or higher, so I don't know why it isn't working.

P.S. When I plug in the USB cable into the computer, the HDD starts to spin, but it never shows up in the finder or on the desktop. Also, this HDD works in my MacBook Pro, but not the Mac Pro.

If anyone has any useful information, that would be greatly appreciated.

Thank you.

Mac Pro, Mac OS X (10.6.8), Mac Pro 1,1

Posted on Apr 16, 2014 8:27 AM

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Q: Seagate External HDD won't show up.

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  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jan 3, 2016 9:17 AM in response to Miss_SC
    Level 9 (60,884 points)
    Desktops
    Jan 3, 2016 9:17 AM in response to Miss_SC

    since I upgraded to El Capitan...

     

    ElCapitan has a new requirement for add-ons that include extensions. They MUST be properly signed by the developer, or they simply do not get loaded.

     

    Check with Paragon to be sure they certify that their utility and driver are ELCapitan compatible. Many are not, and it has been a rude shock.

  • by CD27,

    CD27 CD27 Jan 3, 2016 9:23 AM in response to Grant Bennet-Alder
    Level 1 (0 points)
    Jan 3, 2016 9:23 AM in response to Grant Bennet-Alder

    Really!! Gosh. That is dismaying news.

  • by Miss_SC,

    Miss_SC Miss_SC Jan 3, 2016 9:25 AM in response to Grant Bennet-Alder
    Level 1 (0 points)
    Jan 3, 2016 9:25 AM in response to Grant Bennet-Alder

    Could this happen all of a sudden due to my upgrading it? That's the only thing I have done differently. If not - is there a way to get my files off my hard drive onto a compatible version, or is it a case of buying the full programme... SeaGate say I only need this particular one - Paragon NTFS for Mac OS X -because I only have the SeaGate device so don't need to full package - this is the bit I upgraded today. I've seen this a LOT since ElCapitan launched. There is nothing wrong with the device, I've only had it a few months and hardly put anything on there - but what is on there IS MY BACK UP as I was trying to clear room off my Mac - so can't wipe it! Why is this so hard?! Plug a device in, save your files et voila... instead of downloading add on after add on to get it to work!

  • by Miss_SC,

    Miss_SC Miss_SC Jan 3, 2016 9:32 AM in response to Miss_SC
    Level 1 (0 points)
    Jan 3, 2016 9:32 AM in response to Miss_SC

    I don't have the full version - this is on their site - but I don't want to buy it yet in case this isn't what I need? Sorry I have absolutely no idea about this stuff...?! If I buy this package - will my SeaGate device work?

     

    https://www.paragon-software.com/home/ntfs-mac/index.html

     

    Screen Shot 2016-01-03 at 17.26.42.png

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jan 3, 2016 9:59 AM in response to Miss_SC
    Level 9 (60,884 points)
    Desktops
    Jan 3, 2016 9:59 AM in response to Miss_SC

    If you had asked here earlier, readers would have suggested you use Ex-FAT for Mac and PC compatibility, or GUID with MAC OS Extended format for Mac-only use. Changing formats now does require you to erase the drive, which you said you do not want to do.

     

    The Mac can Read, but not Write, Windows New Technology File System (NTFS) drives. Utilities such as paragon NTFS add that capability by installing an Extension.

     

    ElCapitan adds a new requirement that those Extensions be properly signed with an Apple developer certificate, so many older versions of things with Extensions stopped working when ElCapitan came out.

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jan 3, 2016 10:01 AM in response to Miss_SC
    Level 9 (60,884 points)
    Desktops
    Jan 3, 2016 10:01 AM in response to Miss_SC

    That does appear to be "the right stuff" to buy to get your drive talking NTFS in ElCapitan.

  • by Miss_SC,

    Miss_SC Miss_SC Jan 3, 2016 10:20 AM in response to Grant Bennet-Alder
    Level 1 (0 points)
    Jan 3, 2016 10:20 AM in response to Grant Bennet-Alder

    That was the one Seagate recommended - thank you for your help! I'll download it now - if it works I'll you you know

  • by Miss_SC,

    Miss_SC Miss_SC Jan 3, 2016 10:45 AM in response to Miss_SC
    Level 1 (0 points)
    Jan 3, 2016 10:45 AM in response to Miss_SC

    Bought it (£12.99 in UK) - it's worked! hurrah! Hopefully that will be the end of it now I've bought it, as they should keep it up to date to run with El Capitan!

     

    Anyone else having trouble - the Paragon software is the one SeaGate recommend. Can verify it works

     

    it's this one... https://www.paragon-software.com/home/ntfs-mac/

  • by pmiles,

    pmiles pmiles Jan 3, 2016 11:37 AM in response to Miss_SC
    Level 6 (15,951 points)
    Jan 3, 2016 11:37 AM in response to Miss_SC

    Honestly you really should consider reformatting the drive in ExFAT if you intend to share it between OSes.  It's natively supported by both OSes and you don't need a third party to make it work.  Right now you are at the mercy of the third party vendor to maintain support, with ExFAT there is no such baggage.

     

    My Windows drive (bootcamp) is in NTFS because is has to be.  My Mac drive (OS X) is in Mac OS Extended because it has to be.  My shared drive (third physical drive) is in ExFAT because that is all it's used for, sharing data between the two.  Works beautifully.  I can read and write to my shared drive from either OS whenever I want to and I can access that same content from either OS whenever I want to.


     

  • by dmc28,

    dmc28 dmc28 Feb 2, 2016 9:00 AM in response to lllaass
    Level 1 (0 points)
    Feb 2, 2016 9:00 AM in response to lllaass

    i m also facing the same problem of the hard drive not showing up in disk utility but its showing up on the system information
    i dnt know how to make it work .. could you please help me out ?

    Screen Shot 2016-02-02 at 4.59.11 PM.png

  • by lllaass,

    lllaass lllaass Feb 2, 2016 9:05 AM in response to dmc28
    Level 10 (188,672 points)
    Desktops
    Feb 2, 2016 9:05 AM in response to dmc28

    System Profiler should identify both the disk and the enclosure. Your screenshot only shows the enclosure.

    That means:

    - The disk is dead

    - There is something wrong with the enclosure, or

    - the drive is not getting enough power. That not infrequently happens for HDs that are powered by the USB bus (via a separate AC power adopter), especially a USB 2 (or 1) bus

  • by dmc28,

    dmc28 dmc28 Feb 4, 2016 8:01 AM in response to lllaass
    Level 1 (0 points)
    Feb 4, 2016 8:01 AM in response to lllaass

    thank you for replying
    is there anything i can do to fix it ?

  • by lllaass,

    lllaass lllaass Feb 4, 2016 8:16 AM in response to dmc28
    Level 10 (188,672 points)
    Desktops
    Feb 4, 2016 8:16 AM in response to dmc28

    Is the external drive powered by the USB bus?

    Only small (use 2 1/2 inch drives) can be bus powered. Ones that use 3 1/2 inch drives are all AC adopter powered.

  • by dmc28,

    dmc28 dmc28 Feb 4, 2016 10:47 AM in response to lllaass
    Level 1 (0 points)
    Feb 4, 2016 10:47 AM in response to lllaass

    yes it is powered by the USB bus

  • by Allan Eckert,

    Allan Eckert Allan Eckert Feb 4, 2016 10:50 AM in response to dmc28
    Level 9 (53,561 points)
    Desktops
    Feb 4, 2016 10:50 AM in response to dmc28

    See if it works correctly when it is plugged into a powered hub.

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