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Disk utility won’t mount disk

i have a 2009 MacBook Pro that hasn’t been working for a long time. Recently I wanted to try to getting working again. Thinking the original problem was a software problem (I used it for games) I decided to wipe the hard drive. The new hard drive is unmounted and I cannot mount it. This question has been asked before and I was using their method of solving it (using terminal to force the mount). After I typed in the command to mount it for both mount/dev/disk# and mount force/dev/disk# I came up with two errors. The normal mount says “no such file or directory” the other says “unknown special file or file system”. How do I solve this? I will continue to try and fix this on my own until I get a response.

MacBook

Posted on Jul 10, 2019 6:42 PM

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Question marked as Top-ranking reply

Posted on Jul 10, 2019 8:20 PM

Try This: Using another Mac, you should be able to create a Bootable Installer of El Capitan.


Once created, boot into Recovery Mode (hold down Command+R at boot) on this computer, erase the disk, and then create a volume of: Extended(Journalized).


From there, try the install off of the bootable installer.


This all comes down to the format of the volume and the format of the installer.


Two Links to Use:

  1. Create a bootable installer for macOS --- Create El Capitan Type
  2. How to erase a disk for Mac - Create a volume using Extended(Journalized)


5 replies
Question marked as Top-ranking reply

Jul 10, 2019 8:20 PM in response to Thatgothkat

Try This: Using another Mac, you should be able to create a Bootable Installer of El Capitan.


Once created, boot into Recovery Mode (hold down Command+R at boot) on this computer, erase the disk, and then create a volume of: Extended(Journalized).


From there, try the install off of the bootable installer.


This all comes down to the format of the volume and the format of the installer.


Two Links to Use:

  1. Create a bootable installer for macOS --- Create El Capitan Type
  2. How to erase a disk for Mac - Create a volume using Extended(Journalized)


Disk utility won’t mount disk

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