Rusty Macbook Air getting new Air from Archlinux

Today I accidentally deleted my primary osx partition from my very old macbook air 4,2 (2011) with last installed os was el capitan. From the beginning I just want to give my macbook some extra space but it turns out cleaning all the HDD …LOL, I seriously don’t know how in the hell this could happened, this is a lesson for not to clean your HDD in the middle of the night. »