EBS Volume Resize

To increase the size of an EBS volume attached to a Linux EC2 instance, follow these detailed steps:

Step 1: Modify the EBS Volume

1. Open the AWS Management Console and navigate to the EC2 Dashboard.
2. Select "Volumes" under the "Elastic Block Store" section.
3. Choose the volume you want to resize, then click on "Actions" and select "Modify Volume".
4. Enter the new size for the volume and click "Modify". Confirm the changes.

Step 2: Verify the Volume State

1. Check the volume state to ensure it is in the "optimizing" or "completed" state before proceeding.

Step 3: Connect to Your EC2 Instance

1. SSH into your EC2 instance using your preferred method.

Step 4: Identify the Volume

1.     List block devices:

2. sudo lsblk

·  lsblk: Lists information about all available or specified block devices. This helps you see the current and new sizes of your volumes.

Step 5: Resize the Partition (if necessary)

1.     Check if the volume has a partition:

2. sudo lsblk

·         lsblk: Again, this command is used to list block devices and their partitions.

3.     Resize the partition:

4. sudo growpart /dev/xvda 1

·         growpart: This command is used to extend a partition. Here, /dev/xvda is the device name, and 1 is the partition number. This command resizes the first partition on the specified device.

Step 6: Extend the File System

1.     For ext4 file system:

2. sudo resize2fs /dev/xvda1

·         resize2fs: This command resizes an ext2/ext3/ext4 file system. Here, /dev/xvda1 is the partition you want to resize.

3.     For XFS file system:

4. sudo xfs_growfs -d /

·         xfs_growfs: This command resizes an XFS file system. The -d option specifies that the data section of the file system should be grown. The / indicates the root file system.

Step 7: Verify the Changes

1.     Check the new size:

2. df -h

·         df -h: This command reports file system disk space usage. The -h option makes the output human-readable, showing sizes in KB, MB, or GB.

These commands help you manage and resize your EBS volumes and file systems effectively. 

These steps should help you successfully increase the size of your EBS volume and extend the file system on your Linux EC2 instance. If you encounter any issues or need further assistance, feel free to ask!