Symptoms:
Some guest OS types are hidden for VM creation on the vSphere Client, but you can select them from ESXi host client. These hidden guest OS types include old OS types which are no longer supported, or OS types that have not been released.
For example:
- Amazon Linux 3
- Apple Mac OS X 10.5
- Apple Mac OS X 10.6
- Apple Mac OS X 10.7
- Apple Mac OS X 10.8
- Apple Mac OS X 10.9
- Apple macOS 12
- Asianux 9
- CentOS 9
- Microsoft Small Business Server 2003
- Microsoft Windows 2000 Professional
- Microsoft Windows 2000 Server
- Microsoft Windows Server 2003 Datacenter
- Microsoft Windows Server 2003 Standard
- Microsoft Windows Server 2003 Web Edition
- Microsoft Windows Server 2021
- Novell Open Enterprise Server
- Oracle Linux 9
- Red Hat Enterprise Linux 9
- SUSE Linux Enterprise 16