By default on every reboot, the EBS volumes other than root volume will get unmounted. To enable automount, you need to make an entry in the /etc/fstab file.

Follow the steps given below to automount the EBS volume to ec2 instance.

Step 1: Back up the /etc/fstab file.

sudo cp /etc/fstab /etc/fstab.bak

Step 2: Open /etc/fstab file and make an entry in the following format.

device_name mount_point file_system_type fs_mntops fs_freq fs_passno

For example,

/dev/xvdf       /newvolume   ext4    defaults,nofail        0       0

Step 3: Execute the following command to check id the fstab file has any error.

sudo mount -a

If the above command shows no error, it means your fstab entry is good.

Now, on every reboot, the extra EBS volumes will get mounted automatically.

Rajesh Kumar

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