Install initramfs-tools-ubuntu-core by entering the following commands in the terminal:
sudo apt update sudo apt install initramfs-tools-ubuntu-core
Description:
Tools for making a read-only Ubuntu Core image selectively writeable
This package contains the scripts to make a read-only Ubuntu Core image selectively writeable. These scripts are run within the initramfs. This package should be installed on Ubuntu Core systems.
Version: 0.7.45
Section: utils