Resize Partition and Filesystem

Extend Partition and Filesystem
 
Unmount partition:

umount /<mountpoint>

Delete partition

fdisk /dev/xvdb
Command (m for help): d
Selected partition 1
Command (m for help): p
Command (m for help): w

Create a new (larger) partition

fdisk /dev/xvdb
Command (m for help): n
Command action

   e extended 

   p primary partition (1-4) 

p

Partition number (1-4): 1
Command (m for help): p
Command (m for help): w

Run fsck on your filesystem

e2fsck -f /dev/xvdb1

Resize your filesystem with resize2fs

resize2fs /dev/xvdb1

Re-mount extended partition

mount /<mountpoint>

Reduce a Partition and Filesystem

Unmount partition:

umount /<mountpoint>

Run fsck on your filesystem

e2fsck -f /dev/xvdb1

Resize your filesystem with resize2fs

resize2fs /dev/xvdb1

Delete partition

fdisk /dev/xvdb
Command (m for help): d
Selected partition 1
Command (m for help): p
Command (m for help): w

Create a new (smaller) partition

fdisk /dev/xvdb
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
Command (m for help): p
Command (m for help): w

Re-mount shrinked partition

mount /<mountpoint>