Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Seagate Backup Plus Portable Hard drive won't mount onto the Mac after OS X El Capitan Update?

Hi there,


So after I updated to the new OS X El Capitan, my Seagate Backup Plus hard drive won't show up in the finder. I have checked the disk utility and it shows up there, but it won't let me mount. Does anyone have a solution to this? Or do I have to wait till the next OS update till I can get it to work?


Cheers,


Chanel

MacBook Pro, Mac OS X (10.7.3)

Posted on Oct 3, 2015 3:20 PM

Reply
6 replies

Oct 4, 2015 5:27 PM in response to Eric Root

Hi Eric,


Thanks for trying to help, so I tried using the terminal to mount it but all I got was :


Volume on disk4 failed to mount; if it has a partitioning scheme, use "diskutil mountDisk"

If the volume is damaged, try the "readOnly" option


and I can't even read only.


User uploaded file


As you can see, it won't let me mount or partition either?

Oct 4, 2015 5:51 PM in response to cocoli8

post.user_wrote.label:


Hi Eric,


Thanks for trying to help, so I tried using the terminal to mount it but all I got was :


Volume on disk4 failed to mount; if it has a partitioning scheme, use "diskutil mountDisk"

If the volume is damaged, try the "readOnly" option


and I can't even read only.


User uploaded file


As you can see, it won't let me mount or partition either?

Last login: Mon Oct 5 01:02:47 on ttys000

halls-10-40-253-194:~ Chanel$ diskutil mount force /dev/disk2

Usage: diskutil mount [readOnly] [-mountPoint Path] DiskIdentifier|DeviceNode

Mount will mount the volume in the "standard" place (/Volumes), unless

an optional mount point is specified.

halls-10-40-253-194:~ Chanel$ diskutil verifyDisk /dev/disk2

Unable to verify this whole disk: A GUID Partition Table (GPT) partitioning scheme is required (-69773)

halls-10-40-253-194:~ Chanel$ diskutil mountDisk /dev/disk2


One or more volume(s) failed to mount

halls-10-40-253-194:~ Chanel$

halls-10-40-253-194:~ Chanel$

As you can see above I have tried several ways. Any other ideas, or do you suggest I try and revert back to Yosemite?


Thanks!

Seagate Backup Plus Portable Hard drive won't mount onto the Mac after OS X El Capitan Update?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.