I think menuhax but is there anyway I can check?
Power on the system with no card inserted and hold select. If you get the Luma configuration screen, you have A9LH installed and Luma installed to CTRNAND. If it shuts off immediately, you have A9LH. If it boots normally, you have neither.
Once you know what you have, if you'd like everything you need all in one download, you could check out my InScripted AIO. It's on a certain iso site in their "CFW Discussions" forum. All you need to do is copy over the configuration in the "B9S Configurations" folder that matches your hardware, and then go into "Installers" and copy over either the contents of the "A9LH to B9S" folder if you have A9LH, or the "One & Done" folder if you do not.
"A9LH to B9S" will run the B9S Installer automatically on boot. After installation, just hold left on a reboot after configuring Luma, hit home, select "Scripts" and run the cleanup script.
With "One & Done" all you have to do is enter the homebrew menu, and run OldLoader. You may have to wait a few seconds for it to work, but you should eventually see a menu with 3 install options. Just pick the first one. When the system reboots, configure Luma. It will probably crash with Menuhax installed. But it all depends on whether you set it up to boot SysNAND or EmuNAND. It should be able to boot your EmuNAND fine. It's easy to uninstall the Menuhax, but it's a waste of time if you plan to transfer EmuNAND to SysNAND, because that's going to wipe it out anyway.
Once you have B9S installed, you can decide what to do with your NANDs. If you have any saves you need to backup on your SysNAND for GBA/DSiWare games, you might want to take care of that (there's a copy of Luma Legacy hotkeyed on Y you can use to boot to it temporarily to check). Once you're sure there's nothing you need on it, I include a script in "Extra Options" for transferring EmuNAND to SysNAND. First use the "NAND Backup" ones to make a backup of SysNAND, then just run it. It will do a safe restore that preserves your B9S. At that point, you can just update your SysNAND to 11.5
The official guide recommends deleting EmuNAND at this point by backing your card up, reformatting, and copying everything back over. You can do that if you like, but it's a lot of trouble given the relatively small amount of space reclaimed. If you don't need the space, just restore your 9.2 SysNAND backup to EmuNAND (the easy way to do this is to move it to the root of the drive and restore it with Decrypt9). You can setup Legacy to run EmuNAND and have a very fast way into a *hax homebrew menu. Rosalina does a good job with most homebrew apps, but there's some it just will probably never work with. So, it doesn't hurt to have *hax as a fallback.
If you decide not to switch your NANDs around, and you want Luma to boot your SysNAND, reboot and hold Y to boot with Legacy. Once you are at your home menu, just pick a basic theme (like the black one) to kill Menuhax, reboot, and you should have regular Luma working with SysNAND. At that point all you need to do is setup Rosalina.
Let me know if you have any questions. Also, if you're not in a big rush, I'm planning to release R5 tonight. It adds the ability to configure your hotkeys via scripts (in BootCTR9 or with Luma's chainloader). Just performing some final tests.