Install cloud-initramfs-rooturl by entering the following commands in the terminal:
sudo apt update sudo apt install cloud-initramfs-rooturl
Description:
use a tarball or squashfs image in a url as the root filesystem
Allows user to pass in root=http://example.com/your.tar.gz Root filesystem will be tmpfs from that url.
Homepage: http://launchpad.net/cloud-initramfs-tools
Version: 0.40ubuntu1
Section: universe/admin