SEE: macOS Sierra: The smart person's guide (TechRepublic) Requirements for creating a bootable drive IT admins for enterprise environments might look toward other distribution methods, such as DeployStudio.
The GUI resembled a blend of Mac OS 8s Platinum appearance with OPENSTEPs NeXT-based interface. Macintosh OS X Server 1.0 1.2v3 depended on Rhapsody, a half and half of OPENSTEP from NeXT Computer and Mac OS 8.5.1.
The principal variant of Mac OS X was Mac OS X High Sierra 10.13.
To facilitate this upgrade process, creating a bootable USB installer drive helps get this deployed quickly for SMB environments. Mac OS High Sierra 10.13 ISO / DMG file Direct Download. Create a virtual USB flash drive/disk image. While the process of upgrading to macOS Sierra is pretty easy for consumers, IT administrators may have a more difficult time getting this update to all the end users they support. Create a Bootable macOSHighSierra.iso for installing macOS High Sierra in Virtualbox or VMware with macOS.
After the macOS Sierra 10.12 system, which ended its support on October 1, 2019, Apple released the macOS High Sierra 10.13 operating system on September 25, 2017.