&gt; Since init is the first process that runs, you can&#x27;t use an interpreted language like ruby<p>Sure you can, you can even use a shell script: <a href="https:&#x2F;&#x2F;wiki.gentoo.org&#x2F;wiki&#x2F;Custom_Initramfs#Init" rel="nofollow">https:&#x2F;&#x2F;wiki.gentoo.org&#x2F;wiki&#x2F;Custom_Initramfs#Init</a>