Introducing the first Oreo ROM for the S8 and S8+, its basic don't complain.
First of all, before you go any lower read this:
THIS IS NOT ROOT! This is a custom system image that I modded and allows me to add or remove files and still have it boot and keep Knox intact along with Saftey Net. Unless you mess with the build.prop device stuff, Samsung Pay, Secure Folder, and Google Pay should all work.
Second, If you break your phone or mess up and it boot loops, just flash a stock image and start over. Don't come here crying over it not working because these do work and I have had testers use them and run this.
Third, this is pixelish because all I did was add the pixel launcher and a couple pixel files along with S9+ messenger. This is more of an open project.
Forth, If you are a dev interesting and making your own custom system image, message me and I will tell you the ways of this magic.
NOW FOR THE GOOD PART!
This ROM currently contains the stock Pixel launcher, a couple new /etc/sysconfig pixel files, and the S9 messenger. Knox still works and so does Saftey Net. This has yet to be debloated.
To install it:
1. Go to download mode and flash the file install BL.tar with Modded Odin, all files will be linked in like post 2 or 3, I don't know.
2. Reboot back into download and flash the system.tar (names may vary) in the AP slot with the options reparation and NAND erase all selected, you will also need to use the pit file there. This step will say fail in Odin but that's good.
3. Reboot BACK to download mode and flash the CRB9 AP, BL, and CP. In between the system flashing and this step, hit reset at the bottom of Odin to reset the options.
4. Let the phone reboot. It will boot loop, that's good. Now go to recovery and let this boot loop. It will say something about a cache error, that's perfect.
5. From recovery go to download mode, it might be difficult and you may get to upload mode, just keep holding the keys until you get there. Now flash the CSC file.
6. After flashing CSC you should be in recovery, now clear data and cache. Hit reboot the system or whatever and you should be good!
7. Enjoy whatever is in the ROM because I assume some people are going to link back here at some point.
THANKS to
@me2151 for finding this and telling me how to do it and such