when inodes, superblock and data block are created?
 

when inodes, superblock and data block are created?
on formating or on partition?

what is inodes, superblock and data block?

thanks in advance.

Partitioning just divides up the hard disk. Inodes, etc. are created when the file system is created. There's a general overview of superblocks which talks about this at http://www.linuxsa.org.au/tips/superblocks.html. There are lots of more detailed articles if you search google with terms like "linux filesystem inode superblock"