Fedora 29 : System Storage Manager tool.

This Linux tool comes with this intro:
System Storage Manager provides an easy to use command line interface to manage your storage using various technologies like lvm, btrfs, encrypted volumes and more.
Today I will show an easy way to fix the size of your size of the volume and the file system.
Fist you need to install it with dnf tool :

[root@desk mythcat]# dnf install system-storage-manager
Last metadata expiration check: 1:11:16 ago on Thu 08 Nov 2018 08:04:29 PM EET.
Package system-storage-manager-1.2-1.fc29.noarch is already installed.
Dependencies resolved.
Nothing to do.
Complete!

Use this command to fill up to 100%:

[root@desk mythcat]# ssm resize -s +100%FREE /dev/mapper/fedora-root 

Display the information about all detected devices, pools, volumes, and snapshots, see:

[root@desk mythcat]# ssm list
-------------------------------------------------------------
Device        Free       Used      Total  Pool    Mount point
-------------------------------------------------------------

Check the file system consistency on the volume ( this cannot be use with swap ).

[root@desk mythcat]# ssm check

You can read more about this tool here.