Add an additional EBS volume to a running AWS EC2 machine

Step 1: Create and Attach an EBS Volume

1. Go to AWS Console > EC2 > Elastic Block Store (EBS).

2. Click "Create Volume".

   • Choose the same availability zone as your EC2 instance.
   • Select the desired size, type (gp3 or gp2 for general-purpose SSD), and IOPS.
   • Click Create Volume.

3. Attach the EBS Volume to the EC2 Instance.

   • Go to Volumes in the EBS dashboard.
   • Select the newly created volume and click Actions > Attach Volume.
   • Choose the target EC2 instance.
   • Set a device name (e.g., /dev/xvdf or /dev/sdf).
   • Click Attach.

Step 2: Format and Mount the Volume

1. Connect to the EC2 instance via SSH:

   ssh ubuntu@your-ec2-ip

2. Check if the volume is detected:

   lsblk

   You should see a new device (e.g., /dev/xvdf or /dev/nvme1n1).

3. Format the volume (if it's new and unformatted):

   sudo mkfs -t ext4 /dev/xvdf

   (Replace /dev/xvdf with your actual device name from lsblk.)

4. Create the mount point:

   sudo mkdir -p /home/ubuntu/kbparse

5. Mount the volume:

   sudo mount /dev/xvdf /home/ubuntu/kbparse

6. Verify the mount:

   df -h

Step 3: Make the Mount Persistent (Optional)

To ensure the volume mounts automatically after a reboot:

1. Get the volume’s UUID:

   sudo blkid /dev/xvdf

   You will see output like:

   /dev/xvdf: UUID="1234-5678-ABCD" TYPE="ext4"

2. Edit /etc/fstab:

   sudo nano /etc/fstab

   Add this line at the bottom:

   UUID=1234-5678-ABCD  /home/ubuntu/kbparse  ext4  defaults,nofail  0 2

3. Test the fstab entry (to prevent boot issues):

   sudo mount -a