I'm planning to install Arch linux on my Macbook Air (mid-2015), and installing means I'm going to mess with the partitions on the disk, and lots of stuff, and I'm not expert on these topics, so there is a chance that I might delete something important for OS X on the other partition, or about recovery partition etc.
So my question is in which cases I would lose my OS X license? I mean for example if I unintentionally delete the recovery partition would I lose anything? etc.
What I'm trying to understand here is that what is the worst thing that I can do unintentionally during the installation?
Edit: It would also be helpful if the answer contain how is licensing works for OS X on Macs.