Mounting an EBS Volume on a Linux EC2 Instance in AWS (Amazon Web Services)

Mounting an EBS Volume on a Linux EC2 Instance in AWS (Amazon Web Services)

In this article,we will see Mounting an EBS Volume on a Linux EC2 Instance.

Implementation Steps

1. View your existing Instance.
2. Connect to Linux EC2 Instance through putty.
3. Mount an EBS Volume to your Linux EC2 Instance.

First, we need to AWS Console page by using below link.

https://aws.amazon.com/console/

Click on sign in to Console button.

Logging to aws account

Login using username & password and click on sign in.

Enter to AWS Management Console

We can see the AWS Management Console Dashboard.

Go to Services, under the compute module click EC2 service to open.

I have already launched Instance.

View your existing Instance

We can see Linux Server “My Linux” which was created earlier.

Verify volumes of your Linux EC2 Instance.

Go volumes,we can see two volumes attached to Linux EC2 Instance.

The first one is root volume and second one is EBS volume.

Note

If you want to store the files inside the EBS volume, you need to mount EBS volume to your Linux EC2 Instance.Manually.

Connect to Linux EC2 Instance through putty

Mount an EBS Volume to your Linux EC2 Instance.

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login as: ec2-user   Authenticating with public key "imported-openssh-key"   Last login: Wed Nov 27 10:17:56 2019 from 123.201.77.64          __|  __|_  )          _|  (     /   Amazon Linux 2 AMI         ___|\___|___|   https://aws.amazon.com/amazon-linux-2/   5 package(s) needed for security, out of 13 available   Run "sudo yum update" to apply all updates.   [ec2-user@ip-172-31-34-108 ~]$

Switch to root user

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[ec2-user@ip-172-31-34-108 ~]$ sudo su   [root@ip-172-31-34-108 ec2-user]#

Verify Available disks in your Linux Server

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[root@ip-172-31-34-108 ec2-user]# lsblk   NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT   xvda    202:0    0   8G  0 disk   └─xvda1 202:1    0   8G  0 part /   xvdb    202:16   0  10G  0 disk

Verify the volume has any data by using the following command.

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[root@ip-172-31-34-108 ec2-user]#file -s /dev/xvdb   data

Format the volume to ext4 filesystem

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[root@ip-172-31-34-108 ec2-user]# mkfs -t ext4 /dev/xvdb   mke2fs 1.42.9 (28-Dec-2013)   Filesystem label=   OS type: Linux   Block size=4096 (log=2)   Fragment size=4096 (log=2)   Stride=0 blocks, Stripe width=0 blocks   655360 inodes, 2621440 blocks   131072 blocks (5.00%) reserved for the super user   First data block=0   Maximum filesystem blocks=2151677952   80 block groups   32768 blocks per group, 32768 fragments per group   8192 inodes per group   Superblock backups stored on blocks:           32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632   Allocating group tables: done   Writing inode tables: done   Creating journal (32768 blocks): done   Writing superblocks and filesystem accounting information: done

Create a directory to mount our new ext4 volume (use any directory name you like)

Make Directory

1 2	[root@ip-172-31-34-108 ec2-user]# mkdir /ktexperts

Mount the volume to “ktexperts” directory

1 2	[root@ip-172-31-34-108 ec2-user]# mount /dev/xvdb /ktexperts

Verify the disk space in your Linux Server

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[root@ip-172-31-34-108 ec2-user]# df -h   Filesystem      Size  Used Avail Use% Mounted on   devtmpfs        475M     0  475M   0% /dev   tmpfs           492M     0  492M   0% /dev/shm   tmpfs           492M  404K  492M   1% /run   tmpfs           492M     0  492M   0% /sys/fs/cgroup   /dev/xvda1      8.0G  1.3G  6.8G  16% /   tmpfs            99M     0   99M   0% /run/user/1000   /dev/xvdb       9.8G   37M  9.2G   1% /ktexperts

Go to Mount Directory and verify files.

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[root@ip-172-31-34-108 ec2-user]# cd /ktexperts/   [root@ip-172-31-34-108 ktexperts]# ls -l   total 16   drwx------ 2 root root 16384 Nov 27 10:25 lost+found   [root@ip-172-31-34-108 ktexperts]#

Make Files and Directories inside mount directory

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[root@ip-172-31-34-108 ktexperts]# ls   aws  ktexpers1  ktexperts2  ktexperts3  ktexperts4  lost+found   [root@ip-172-31-34-108 ktexperts]# touch ktexpers1 ktexperts2 ktexperts3 ktexperts4   [root@ip-172-31-34-108 ktexperts]# ls   ktexpers1  ktexperts2  ktexperts3  ktexperts4  lost+found   [root@ip-172-31-34-108 ktexperts]# mkdir aws   [root@ip-172-31-34-108 ktexperts]# ls   ktexpers1  ktexperts2  ktexperts3  ktexperts4  lost+found   aws

EBS Automount on Reboot

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

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[root@ip-172-31-34-108 ktexperts]# vi /etc/fstab   Enter the below command inside the fstab file   /dev/xvdf       /newvolume   ext4    defaults,nofail        0       0

Execute the following command to check id the fstab file has any error

1 2	[root@ip-172-31-34-108 ktexperts]# sudo mount -a

Thank you for giving your valuable time to read the above information.