CTRL ALT DEL之后有反应但到了界面出现了一个对话诓说：Your home directory is listed as:'/home/linyu'
but it does not appear to exist. Do you want to log in with the /(root)directory as your home directory ? It is unlikely anything will work unless you us a failsafe session.
User's $HOME/.dmrcfile is being ignored. This prevents the default session and language from being sared. File should be owned by user and have 644 perm issions . user's $HOME directory must be ownde by user and not writable by other users.
我点了一个 又进入一个Your session only lasted less than 10seconds .If you have not logged out yourself .This could or that you may be out of diskspace.Try logging in with one of the failsafe sessions to see if you can fix this problem.