Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs vis NFS, trying to floppy.
VFS: Insert root floppy and press ENTER ( I pressed enter here)

end_request: I/O error, dev fd0, sector 0
VFS: Cannot open root devices "sda3" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2.0)