I\'ve installed the \"all-in-one\" setup of DevStack.
But when I rebooted my system nothings works, and I lose all my already-created instances, images, configs, ...
From liberty release, .rejoin-stack.sh was removed by the openstack community, to get the screen you can execute the below command:
screen -c "your-screens-file-name"
ex: screen -c stack-screenrc
screen -c stack-screenrc
stack-screenrc is the screen name located under devstack directory.