vagrant@vagrantup:~$ sudo dpkg -i /vagrant/h1_1.0.5.deb Selecting previously deselected package h1. (Reading database ... 58434 files and directories currently installed.) Unpacking h1 (from /vagrant/h1_1.0.5.deb) ... Adding group h1....done Adding system user h1..adduser: Only one or two names allowed. ..done usermod: user 'h1' does not exist chown: invalid user: `h1:adm' Setting up h1 (1.0.5) ... /bin/chown: invalid user: `h1:h1' Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot