about unable to start the system

[gyanendra chaurasiya gyanendra]

>  my susytem is unable to start and now it is not to perform again
> format and> the errors are: kernel Panic not syncing :VFS: unable to mount root fs
> on> unknown block(0,0) Pid :1,comm:swapper not trained> 3.1.00.rc1.git1.1.fc17.i686
> #1 Call Trace: printk+0x2d/0x2f> panic+0x66/0x16e mountblockroot+0x214/0x234 ?
> sysmknod+0x2c/0x2e> mountroot+0x59/0x5f preparenamespace+0x11f/0x163 ?
> sysaccess+0x25/0x27> kernelinit+0x135/0x13a ?startkernel+0x380/0x380>
> kernelthreadhelper+0x6/0x10>> how to bug it please help on the full detail i want to
> know about how i again format it or how to shutout the problem Dear classroom! Get
> Yourself a cool, short @in.com Email ID now!