The afulnx_64 file sent over by MSI was AMI's version v5.06.01, which seems to be the newest version or at least fairly recent given the 2014 copyright. The afulnx_32 is the alternative 32-bit Linux build. When searching afulnx_64, there's some other web-sites mentioning this Linux flash utility, mostly on some small Asian web-sites and it also appears to be distributed by some Gigabyte server and Lenovo ThinkServer BIOS packages. In the ten years of running Phoronix and being a Linux user longer than that, this is the first time I've heard of an official AMI flash utility for Linux. What MSI sent over was a Linux binary called afulnx_64 and is the AMI Firmware Update Utility for Linux.
