ALCI is designed to be as minimal as possible. 

Hence our choice to make our personalized ALCI DWM.

Gparted could be installed on the fly and you can do your workflow that way.

But what if you just want to start from scratch and delete all partitions and go on with the installation.

This is all you need to remember:

 You may need to change the device name. “Lsblk” in a terminal will tell you what you have.

wipefs -a /dev/sda

or

sgdisk -Z /dev/sda