Now with Crossmeta FUSE for Windows there is read-only support not only for UFS2 but also for various other incarnations of UFS Later UFS2 was introduced to support 64-bit file system structures, which Crossmeta cannot mount on windows. Also in Crossmeta driver the root file system image is being used as FFS inside the kernel.
This grandfather of file system was improved heavily by Marshall Kirk McKusick and is the standard file system for FreeBSD.
The Unix file system ( UFS) also called the BSD Fast File System or FFS is a file system supported by many Unix like operating systems.