Default [Q] Which instructions for porting CWM Recovery are correct?

I am going crazy trying to port CWM Recovery to my device, a Japanese Galaxy S3 (SCL21). I have been using these instructions http://xda-university.com/as-a-devel...o-a-new-device and have yet to create a successful build.

I also found these instructions http://www.koushikdutta.com/2010/10/...ry-to-new.html

Which of these is correct? They both say to edit recovery.fstab which is fine, but the former also tells you to edit BoardConfig.mk. If it is indeed necessary to edit BoardConfig.mk, is there some kind of barebones config if we only need a recovery image?