I recently bought a 4 TB naked (no enclosure) external hard drive that I mount via a Newer Tech dock (the ones where you insert the naked drive like bread in a toaster) and is connected to my MacBook pro via FireWire 800.
About a month later I wanted to use the drive and it would not mount.
Disk Utility reports that it is "Not Mounted".
When I connect the drive I get this:
The disk you inserted was not readable by this computer.
So I tried terminal commands like:
diskutil list
I also tried:
mount force /dev/disk3
and got:
mount: You must specify a filesystem type with -t.
and then:
mount force -t Apple_HFS /dev/disk3
which outputs:
usage: mount [-dfruvw] [-o options] [-t external_type] special node
mount [-adfruvw] [-t external_type]
mount [-dfruvw] special | node
I also tried:
diskutil repairVolume /dev/disk3
which gives back:
Error starting file system repair for disk3: Unrecognized file system (-69846)
and finally:
sudo gpt -r show /dev/disk3
I am at a loss, can anyone give me some advice on how to mount this drive?
Best Answer
Just when I was about to give up, format the drive and lose my data, somehow I was able to fix the drive so I am posting what exactly I did in terminal for the benefit of other people who might come across this post and have the same problem. I hope this will be helpful to somebody:
Since I've tried pretty much every terminal line under the sun, I think the key was the sequence in which this worked, which was:
When I heard tried to verifyDisk and repairDisk a few days ago it had not worked but somehow with this sequence it was able to repair the partition map
Thank you to all of you guys who have tried to help me with this. I am glad to have my data back ;)