I've said it before in this thread, probably within the last few pages....
MR users on these kind of threads will gladly help people out, this has been the case before Apple got this big and owning Apple computers was still "kind of special".
I helped out a lot of people, I sometimes ask for help too, that's normal, we should embrace these people, not posting what you do here.
There are over 150 pages now, more than 3725 posts, do you really think it's that easy to find.
There is no answer in a single post, Macs and years of release differ, on some Macs it's fairly easy, on others it's very difficult.
I for one still didn't find a good answer on how to disable sealing and being able to mount a disk as R/W, some of the posters (Like me) are non native, I understand English perfectly, others don't and their posts can be confusing, this doesn't mean they aren't nice people, they try and I applaud that.
Edit: The search in MR suks big time, so there's that.