About redicting superblock data of ext2

About redicting superblock data of ext2

[Light King]

Hi All,

I want to store superblok metadata to another file while formating a
device with ext2 filesystem .

Breifly I m writing my requirements like ----

Let I ve a block device /dev/sda . I want to do mkfs.ext2 which will
format my device with ext2 and it will write all superbck data to the
device . But i want to do like when i ll do makfs.ext2 /dev/sda it shd
write the superblock to another space other tan sda and I shd able to
mount and read write the device sda . so fo his purpose Where shd i
touch and how shd I do this plz any one give some idea .

Why I want to do this ?

ans: I want to save the superblock data if the disk got failed also in
another place .