plz use real words as per our forum guidelines. They also apply to thread titles. thx for reading them.
And no, I won't send you and "original files". You need to restore the Ipod before you can install Rockbox. The most likely way is using Itunes for this, but it can be done manually by following the instructions on the IpodManualRestore wiki page.
And we can't help you on a "hdd error" if you don't tell use the error.