If you are alternative OS user that plans on building a new Ryzen powered system next week, make sure your read this little nugget of information posted by the crew at Phoronix today.
I haven't received any communication from AMD about any review samples or the like, so I am not under NDA for the upcoming AMD Ryzen launch on 2 March... And thankfully received some information from a reliable source this weekend regarding Ryzen support Linux requirements. So here they are. I am told that if using Ubuntu 16.10 / Ubuntu 16.04.2 as a base state for AMD Ryzen, users should generally be okay. In other words, you won't get a kernel oops on boot or anything dramatic like that but could be missing some functionality. However, you will really be better off with a newer Linux kernel.
