I reached a point where I have no idea on how to move on. I hope after this is "done" that there will be a mini how-to on how you get to the solution :)
Solution has been posted :)
The challenge covers some Linux file manipulation, C/ASM, GDB and filesystem. Please post questions or feedback in the comments
I don't see a link to the challenge at the above site page.
The link is in the page, that's part of the challenge. Keep trying.