Expand a filesystem on Ubuntu / Linux without losing DATA
Expand a filesystem on Ubuntu or Linux after enlarging a VM disk, without losing data. Uses lsblk and resize2fs for online resizing.
Expand the drive attached to your VM
lsblk Output would be something like this

Find the disk you want to expand
use resize2fs
sudo resize2fs /dev/sdaOutput would look something like this
Filesystem at /dev/sda is mounted on /mnt/volume-example; on-line resizing requirednold_desc_blocks = 25, new_desc_blocks = 32nThe filesystem on /dev/sda is now 131072000 (4k) blocks long.