you have to use AM as a monitor and use any of the miners ethOS offers but that miner has to offer some kind of API access and set up AM as a network miner, i use Ethos and monitor two rigs using CM 12.4 as the miner . I don't think you can set up a managed miner in Linux with AM it only runs with windows in remote or as the main controller, you may be able to run it in Linux with boot camp, i think it's called can't say,I never used that and don't care to .....I only use Ethos because it is more stable then windows and not because of AM ..
The same thing should work if your are using the free version of ethos the miner has to allow some form of API access or it won't work or use the Generic miner way in AM if it doesn't but that doesn't do much but let you see what the miner is doing with AM ... if that's all you need you set that up with managed miner but it is very very limited in what it does but you can see the miner or GPUs .I'M not sure if that works with Linux only tried it with windows..