Is there a script i can use to copy some particular sectors of my Harddisk?
I actually have two partitions say A and B, on my Harddisk. Both are of same sizes. What i want is to run a program which starts copying data from the starting sector of A to the starting sector of B until the end sector of A is copied to the end sector of B.
Looking for possible solutions...
Thanks a lot
I am not sure if what you are looking for is a partion copier.
If that is what you mean try clonezilla.
(it will show you what exact statement it uses so can be used to find out how to do that in a script afterwards)
How about using dd? Following copies 1024 blocks (of 512 bytes size, which is usually a sector size) with 4096 block offset from sda to sdb partition:
dd if=/dev/sda1 of=/dev/sdb1 bs=512 count=1024 skip=4096
PS. I also suppose it should be SuperUser or rather ServerFault question.
If you want to access the hard drive directly, not via partitions, then, well, just do that. Something like
dd if=/dev/sda of=/dev/sda bs=512 count=1024 skip=XX seek=YY
should copy 1024 sectors starting at sector XX to sectors YY->YY+1024. Of course, if the sector ranges overlap, results are probably not going to be pretty.
(Personally, I wouldn't attempt this without first taking a backup of the disk, but YMMV)