diaspora@ThinkP-T530:~$ rvm install 1.9.3-p448
Searching for binary rubies, this might take some time.
Checking requirements for ubuntu.
Installing requirements for ubuntu.
diaspora password required for '/usr/bin/env PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/home/diaspora/.rvm/bin:/sbin:/usr/sbin:/usr/local/sbin apt-get --quiet --yes update':
Updating system.
Error running 'requirements_debian_update_system ruby-1.9.3-p448',
please read /home/diaspora/.rvm/log/1378539668_ruby-1.9.3-p448/update_system.log
Requirements installation failed with status: 1.