Create a NetBoot, NetInstall, or NetRestore image

For details, review these Server help pages:

• Create NetBoot images
• Create NetInstall images
• Create NetRestore images

For information about using the imagetool utility, enter this command in the Terminal app:

/System/Library/CoreServices/Applications/System\ Image\ Utility.app/Contents/MacOS/imagetool

• If your Mac won't start up from a compatible version of macOS on your network volume, your Mac might require a specific build of that version. 
• Mac computers that have the Apple T2 chip don't support starting up from network volumes.
• To prevent a Mac from trying to start up from an incompatible network volume, use the Filter Computer Models workflow action with System Image Utility. Or select the image in the Server app, then click Edit to set filtering options.