我的linux无法登录，求救！

mingqianglee

我最近刚刚安装的RedHat linux 9,没使用几天就出现问题了 ；（
最近启动时输入完 root及密码后就出现下面的问题。请各位师兄师姐们帮帮我：
Your session only lasted 10 seconds. If you have not logged out yourself ,this could mean that this is some installation problem or that you may be out of diskspace .Try logging in with one of the fail safe sessions to see if you can fix this problem .
（环境：WindowsServer2003+redhatlionux9 ,最近修改过shell 由BASH改为CSH）
现在无法登录。/分区为3G