In cygwin windows, when I use su command, it shows: su: user root does not exist. How to add root user? -- Best Regards Jiangzhou -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/