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Why will Mavericks/SL not mount these drives?

L

LetNightExplode

macrumors newbie
Original poster
Oct 12, 2012
7
0
I have a few hard drives in this mac pro tower 10.9 Mavericks - they show up in Disk Utility but will not mount. DU shows a sort-of "blank document" or "unidentified filetype" image instead of the normal icon for external media.

I used CCC to migrate data from a 3TB drive to a 4TB drive on a computer running a 10.8 Mountain Lion - and then (with the hard drives disconnected) upgraded that machine to 10.9 Mavericks. Since re-connecting, they will not mount. However, they will also no longer mount if I place them in a NAS connected to my MacBook Pro running 10.6 Snow Leopard.

Both yes, are over 2.2 TB in size.

They used to work before (and connected to each other via shared folders, etc, etc.
 
LetNightExplode said:
I have a few hard drives in this mac pro tower 10.9 Mavericks - they show up in Disk Utility but will not mount. DU shows a sort-of "blank document" or "unidentified filetype" image instead of the normal icon for external media.

I used CCC to migrate data from a 3TB drive to a 4TB drive on a computer running a 10.8 Mountain Lion - and then (with the hard drives disconnected) upgraded that machine to 10.9 Mavericks. Since re-connecting, they will not mount. However, they will also no longer mount if I place them in a NAS connected to my MacBook Pro running 10.6 Snow Leopard.

Both yes, are over 2.2 TB in size.

They used to work before (and connected to each other via shared folders, etc, etc.
Click to expand...


What do you see when you type

diskutil list

in terminal?
 
disk0 is the System SSD - running smooth as butter. disk1 and disk 6 ("Medias") are the culprits. they will not mount and Disk Utility shows them as having "0 folders and 0 files" - although showing they're actual disk usage/capacity. disk 2 is a Windows installation (doubt its relevant though) disk 3 and 4 are USB sticks, and disk 5 is another drive equivalent to the "Medias"

Code: 
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Sharp Island            249.7 GB   disk0s2
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:                  Apple_HFS Media 2                 3.0 TB     disk1s2
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *1.0 TB     disk2
   1:               Windows_NTFS System Reserved         104.9 MB   disk2s1
   2:               Windows_NTFS                         1.0 TB     disk2s2
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *7.9 GB     disk3
   1:                 DOS_FAT_32 OSX TOOLS               7.9 GB     disk3s1
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *7.9 GB     disk4
   1:                  Apple_HFS OSX                     7.9 GB     disk4s1
/dev/disk5
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     Apple_partition_scheme                        *1.5 TB     disk5
   1:        Apple_partition_map                         32.3 KB    disk5s1
   2:                  Apple_HFS Sharp Island 3          1.5 TB     disk5s3
/dev/disk6
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk6
   1:                        EFI EFI                     209.7 MB   disk6s1
   2:                  Apple_HFS Media 3                 3.0 TB     disk6s2



here you can see the icons for those partitions does not load, either ..

Any help would be greatly appreciated! thank you!
 
They don't necessarily look odd. Did you try running disk utility repair on any of the volumes?
 
ssls6 said:
They don't necessarily look odd. Did you try running disk utility repair on any of the volumes?
Click to expand...

Yup, sure did.

t8u9R6v.png


It "mounts" with 0 files and folders - but you can see that the files are taking up space. It doesn't every actually show up in Finder either. - DiskUtility says I can "unmount" it but it never popped up into the Devices list in Finder. This is rather weird
 
Could be due to permissions when you migrated to a new drive. I see it says "Owners Enabled: Yes" in your screenshot above. Do you see the the icons of the two inaccessible drives on the desktop? Right-click, choose get info and post a screenshot of the permissions summary at the bottom.

Also when you tried to repair disk earlier, did you select the disk itself or the partition within? Repairing disk when selecting a disk or selecting the partition have two separate functions. Try doing both.

But mainly I suspect it's an issue with permissions so I'll wait to see the screenshot.
 
adnbek said:
Could be due to permissions when you migrated to a new drive. I see it says "Owners Enabled: Yes" in your screenshot above. Do you see the the icons of the two inaccessible drives on the desktop? Right-click, choose get info and post a screenshot of the permissions summary at the bottom.

Also when you tried to repair disk earlier, did you select the disk itself or the partition within? Repairing disk when selecting a disk or selecting the partition have two separate functions. Try doing both.

But mainly I suspect it's an issue with permissions so I'll wait to see the screenshot.
Click to expand...

The drives do not appear on the desktop or in finder. I selected "repair disk" for both the volume and the partition itself.

Sjl1b8U.png
qK4lOlp.png
 
Ok, so it's not an ownership issue. It's normal for internal drives to have owners enabled.

A quick google search tells me it's possible your drives are "hidden". To test this, click on "go" in the finder menu bar, click "go to folder" and in the box type:

Code: 
/Volumes/Media 2

and then do the same but enter this instead

Code: 
/Volumes/Media 3

Do your drive contents appear in a finder window? If yes, then it's confirmed. Then simply open terminal and enter

Code: 
chflags nohidden /Volumes/Media 2

Code: 
chflags nohidden /Volumes/Media 3

to unhide each.
 
Last edited:
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