Estou tentando instalar o Rocket Chat, mas apresenta o erro abaixo, já tentei de tudo. utilizando ubuntu server 18.04
root@vps45786105:~# sudo snap install rocketchat-server
error: system does not fully support snapd: cannot mount squashfs image using
“squashfs”: mount: /tmp/sanity-mountpoint-777448422: mount failed:
Operation not permitted.