Update OCLP 1.5.0? How?

This may seem like an easy question to answer, but I found the tutorial https://dortania.github.io/OpenCore-Legacy-Patcher/UPDATE.html to be extremely vague and inadequate. As an example, after one downloads and install OCLP 1.5.0, it will prompts you to patch again. Now, it then asks you pick a disk. Should one select the MacOs main disk, or does it expect the USB external drive with the MacOs installation file again?

submitted by /u/Neoalexandros
[link] [comments]