It may be some entry in the BIOS that causes this but the error lines will disappear after 4 or 5 times and the booting will progress further. So if anyone encounters this error, just wait a little longer till the process moves further.
yeah may be right but when I tried to install in that error.... installer gave me error that there is Read/write problem in my hard disk.
but when i reconnected the floppy drive it worked fine.