GL2-2.x
From TechPubs Wiki
GL2-2.x was released in 1986 for the IRIS 1000 and 2000 68000-based SGI terminals and workstations. It is the origin of the EFS system which replaced the AT&T UFS implementation. Replacing GL2-1.x which only ran on the IRIS 1000 series, it was a major improvement forward with TCP/IP stack, improved filesystem, and many other features.
