Originally Posted by kiruthika.p
I have both windows 7 and linux os.But when I switch on my system,an error message is appearing which is "error unknown file system:entering rescue mode".
One day my brother said that as soon as he shutdown the laptop he closed the laptop suddenly,after that only this error message is coming.
So please kindly help me to rectify this problem.
Since you don't tell us what kind of laptop you have, or what version/distro of Linux you have, how can anyone tell you anything?? What is the EXACT error you're seeing on the screen? What did your brother do to shut down the laptop? What have you done/tried? Unless you provide details, there's nothing anyone can tell you.