This is how I am reproducing:
multipass launch trusty --name t1 multipass exec t1 bash echo "deb http://archive.ubuntu.com/ubuntu trusty-proposed main" | tee -a /etc/apt/sources.list sudo apt update -qq sudo apt upgrade -y sudo apt list --upgradable
This is how I am reproducing:
multipass launch trusty --name t1 archive. ubuntu. com/ubuntu trusty-proposed main" | tee -a /etc/apt/ sources. list
multipass exec t1 bash
echo "deb http://
sudo apt update -qq
sudo apt upgrade -y
sudo apt list --upgradable