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How to Mount an External Hard Drive on the Raspberry Pi – Raspian

January 21, 2014

This is a short guide on how to connect an External Hard Drive to the Raspberry Pi! Most external Hard Drives are quite juicy and will require a USB Hub to run in a stable manner, so please do check this before trying to install your drive!

First step is to plug it in, and then switch on your Pi! It should boot up as normal, so go ahead and log in to Raspian as usual.

Step 1. Is it there?!

If you want to check for the current storage devices attached to your Pi, simply run the command:

sudo blkid

This reveals that we currently have our “Seagate Expansion Drive” attached.

Step 2. Check the Partitions

We now need to check the boot name of our Seagate’s partition.

sudo fdisk –l

Reveals that our drive is located at /dev/sda1

Step 3. Mounting it.

Now we know where our drive is, we need to mount it:

sudo mount /dev/sda1 /mnt

The folder “/mnt” is the standard location for mounting permanent media, but you can always create your own folder if required using the “mkdir” command.

That’s it! Our drive is mounted.

Step 4. Permissions.

As our drive is formatted in NTFS, we might need to change the /mnt drive permissions in order to enable proper access. Simply run the following command:

sudo chmod 775 /mnt

This will change your permissions and allow you to access the drive.

To test this, let’s try to create a folder. . . 

cd /mnt
sudo mkdir /IMAFOLDER
cd /IMAFOLDER

Great! So we can read and write to our hardrive!

Step 5. Automounting our drive.

If you want your Hard Drive to mount from boot, we need to set this up!

First step is to edit our "fstab" file

sudo nano /etc/fstab

This will open up the file in nano text editor:

We need to add the following line to have our hard drive mount at boot!

/dev/sda1 /mnt ntfs defaults 0 0

You can now reboot your Raspbery Pi, and your Hard Drive will automatically mount!

Step 5. How to unmount.

To unmount the drive, simply run the command:

sudo umount /mnt

As long as you’re not currently accessing the drive, it should unmount successfully.

Last update: April 10, 2017

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