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Re: Seagate external hard drive cant be read in macos sierra

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Latest reply on Jul 14, 2017 5:08 PM by jaworf

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R24_Manila Jun 23, 2016 4:42 AM

Hi guys so I have 2 Seagate hard drives that works perfectly well, but when I upgraded my mac to macos sierra, it just suddenly wont read it. My mac is MacBook 2015

Re: Seagate external hard drive cant be read in macos sierra

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grahamperrin Jun 23, 2016 10:14 AM (in response to R24_Manila)

With the disk(s) connected, please share outputs from the following commands:

diskutil list

diskutil cs list
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- Re: Seagate external hard drive cant be read in macos sierra
  
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  Tinsleyjf Jul 7, 2016 1:47 PM (in response to grahamperrin)
  
  /dev/disk0 (internal, physical):
     #:                       TYPE NAME                    SIZE       IDENTIFIER
     0:      GUID_partition_scheme                        *121.3 GB   disk0
     1:                        EFI EFI                     209.7 MB   disk0s1
     2:          Apple_CoreStorage Macintosh HD            120.5 GB   disk0s2
     3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
  /dev/disk1 (internal, virtual):
     #:                       TYPE NAME                    SIZE       IDENTIFIER
     0:                            Macintosh HD           +120.1 GB   disk1
                                   Logical Volume on disk0s2
                                   B3D214F9-25FD-4F99-8F42-89567FCBBAA7
                                   Unlocked Encrypted
  /dev/disk2 (external, physical):
     #:                       TYPE NAME                    SIZE       IDENTIFIER
     0:     FDisk_partition_scheme                        *2.0 TB     disk2
     1:               Windows_NTFS Seagate Backup Plus ... 2.0 TB     disk2s1
  /dev/disk3 (internal, physical):
     #:                       TYPE NAME                    SIZE       IDENTIFIER
     0:     FDisk_partition_scheme                        *128.6 GB   disk3
     1:               Windows_NTFS Backup                  128.6 GB   disk3s1
  
  //////////////////////////////////////
  
  CoreStorage logical volume groups (1 found)
  |
  +-- Logical Volume Group 3A128844-8DD7-43C8-A4E7-31DB75A9F5FC
      =========================================================
      Name:         Macintosh HD
      Status:       Online
      Size:         120473067520 B (120.5 GB)
      Free Space:   204800 B (204.8 KB)
      |
      +-< Physical Volume FC7B64A1-D7FF-4DEC-94F5-561475F5BF1E
      |   ----------------------------------------------------
      |   Index:    0
      |   Disk:     disk0s2
      |   Status:   Online
      |   Size:     120473067520 B (120.5 GB)
      |
      +-> Logical Volume Family 3D711441-C517-4C75-ADD2-44135E4861B7
          ----------------------------------------------------------
          Encryption Type:         AES-XTS
          Encryption Status:       Unlocked
          Conversion Status:       Complete
          High Level Queries:      Fully Secure
          |                        Passphrase Required
          |                        Accepts New Users
          |                        Has Visible Users
          |                        Has Volume Key
          |
          +-> Logical Volume B3D214F9-25FD-4F99-8F42-89567FCBBAA7
              ---------------------------------------------------
              Disk:                  disk1
              Status:                Online
              Size (Total):          120120541184 B (120.1 GB)
              Revertible:            Yes (unlock and decryption required)
              LV Name:               Macintosh HD
              Volume Name:           Macintosh HD
              Content Hint:          Apple_HFS
  
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    grahamperrin Aug 7, 2016 5:58 PM (in response to Tinsleyjf)
    
    Thanks.
    
    Is /dev/disk3 (internal, physical) one of the two Seagate drives?
    
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Re: Seagate external hard drive cant be read in macos sierra

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Tinsleyjf Jul 7, 2016 1:45 PM (in response to R24_Manila)

I am having the same trouble... they are now showing up as unreadable to the mac... I checked the drive on a pc and was able to get in there and look at the files and media.
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Re: Seagate external hard drive cant be read in macos sierra

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Joachim_Joe Jul 9, 2016 1:48 AM (in response to R24_Manila)

Related thread: https://forums.developer.apple.com/message/152743
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Re: Seagate external hard drive cant be read in macos sierra

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jplusabia Sep 10, 2016 9:11 AM (in response to R24_Manila)

Same here. My Seagate 1TB is not mounting on MacOS Sierra. Tried it on mac running el Capitan and it works just fine. What should i do?
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- Re: Seagate external hard drive cant be read in macos sierra
  
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  appKey Sep 15, 2016 6:45 PM (in response to jplusabia)
  
  Hi ,
  
  I had the same issue with Seagate 1TB HD, and I've just install this driver http://www.seagate.com/br/pt/support/downloads/item/ntfs-driver-for-mac-os-master-dl/ and it is now working perfectly.
  
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    hrishi_kris Oct 1, 2016 9:53 AM (in response to appKey)
    
    please help buddy....I cant do anything on my mac without my hdd..."Failure trying to mount volume" and mac has established my hdd as "dirty"....
    i dont know what to do.
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    Joe GT Oct 5, 2016 1:43 PM (in response to appKey)
    
    The same problem, but I installed the program and now works fine. I feel bad that Apple do not consider this problem.
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    yuvraj Nov 2, 2016 4:23 AM (in response to appKey)
    
    thanks man sure seems to be working after i did this
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    Goodxcharly Nov 18, 2016 4:44 PM (in response to appKey)
    
    Thanks!!
    
    Finally resolved! A week and a 1/2 later plus 2 so called computer repair shops.
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    akimoe Nov 29, 2016 2:48 PM (in response to appKey)
    
    this helped
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    foglightframes Dec 14, 2016 8:31 PM (in response to appKey)
    
    Perfect. Thanks!
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    octoberstorm44 Apr 14, 2017 9:13 AM (in response to appKey)
    
    Thank you very much .... this resolved the issue.
    
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  - Re: Seagate external hard drive cant be read in macos sierra
    
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    jaworf Jul 14, 2017 5:08 PM (in response to appKey)
    
    This driver only works with older versions of MacOS, not High Sierra.
    
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Re: Seagate external hard drive cant be read in macos sierra

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DJDangerou5 Sep 29, 2016 12:43 PM (in response to R24_Manila)

iv had the same problem with 2 of my seagate drives they worked fine before i updated my OSX so whats the fault with sierra when it worked on the capitain perfectly fine ??
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Re: Seagate external hard drive cant be read in macos sierra

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stripehandle the dodecahedron Oct 5, 2016 12:25 PM (in response to R24_Manila)

try this...I was having the same issue and it solved the problem.

http://www.seagate.com/support/downloads/item/ntfs-driver-for-mac-os-master-dl/
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- Re: Seagate external hard drive cant be read in macos sierra
  
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  dmcverry Nov 7, 2016 7:58 PM (in response to stripehandle the dodecahedron)
  
  I did this but all I get is a message telling me that the NTFS_for_mac/dmg is damaged & I need to trash it. So no joy here
  
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- Re: Seagate external hard drive cant be read in macos sierra
  
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  markusgt Jan 11, 2017 8:01 AM (in response to stripehandle the dodecahedron)
  
  I did this. My drive shows up in the System Report, but not in the Finder, and Pargon NTSF for Mac, now in System Preferences, lists no drives.
  
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Re: Seagate external hard drive cant be read in macos sierra

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Dakota1961 Oct 14, 2016 3:50 PM (in response to R24_Manila)

I am having the same problem with my Mac Book Pro-2015, I upgraded to Sierra and now I cant use my external Hard Drives, I have 2 of them , 1 is a Toshiba 2TB, and the other one is Touro 1 TB HDD,it wont read them is there a software program i can use to fix this problem?
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Re: Seagate external hard drive cant be read in macos sierra

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j.aniruddha1 Oct 25, 2016 9:48 AM (in response to R24_Manila)

I am getting the same problem now on mac OS Sierra,
I am having seagate 1TB external power hard drive with 2 partitions with following file system
1. OS X Journeled
2 . FAT32
Now suddenly only OSX Journled partiion is getting mounted and I could not see FAT3.
If I run the command "diskutil list" i can see both the volumes but in finder and diskutility only 1st partition is seen,
IS this the os problem? It occured just now.
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- Re: Seagate external hard drive cant be read in macos sierra
  
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  smoun07 Jul 10, 2017 9:49 PM (in response to j.aniruddha1)
  
  http://www.seagate.com/au/en/support/downloads/item/ntfs-driver-for-mac-os-master-dl/
  
  worked perfectly
  
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Re: Seagate external hard drive cant be read in macos sierra

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marsspiders Mar 8, 2017 8:43 AM (in response to R24_Manila)

Guys I got GoFlex Segate 2TB OSX Journaled
The error I get:

sudo fsck_hfs -r -d /dev/disk1s1
journal_replay(/dev/disk1s1) returned 16
** /dev/rdisk1s1
Using cacheBlockSize=32K cacheTotalBlock=98304 cacheSize=3145728K.
   Executing fsck_hfs (version hfs-305.10.1).
could not get volume block 2, err 16
could not get alternate volume header at 409598, err 16
volumeType is 0
0000: 00a0 bd01 0100 0000 0000 0000 0000 0000       |................|
0010: 0000 0000 0000 0000 0000 0000 0000 0000       |................|
. . .
01f0: 0000 0000 0000 0000 0000 0000 0000 0000       |................|
unknown volume type
primary MDB is at block 0 0x00
alternate MDB is at block 0 0x00
primary VHB is at block 0 0x00
alternate VHB is at block 0 0x00
sector size = 512 0x200
VolumeObject flags = 0x01
total sectors for volume = 409600 0x64000
total sectors for embedded volume = 0 0x00
CheckForClean - unknown volume type

Thanks in advance!!
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Re: Seagate external hard drive cant be read in macos sierra

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Macintosh Apr 14, 2017 10:31 AM (in response to R24_Manila)

You could of damaged your drive. That happened to me on an upgrade from Mac OS X Mavericks (10.9.5) to macOS Sierra (10.12).
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