Apple 95014-2084 User Manual download pdf (Page 21)

Chapter 1 Understanding System Imaging 21

Property List File

The property list file (NBImageInfo.plist) stores image properties. The following table

gives more information about the property list for Mac OS X image files.

Initial values in NBImageInfo.plist are set by System Image Utility and you usually don’t

need to change the property list file directly. Some values are set by Server Admin. If

you must edit a property list file, you can use TextEdit or Property List Editor, found in

the Utilities folder on the Mac OS X Server Administration Tools CD.

Boot Server Discovery Protocol (BSDP)

NetBoot service uses an Apple-developed protocol based on DHCP known as Boot

Server Discovery Protocol (BSDP). This protocol provides a way of discovering NetBoot

servers on a network.

NetBoot clients obtain their IP information from a DHCP server and their NetBoot

information from BSDP. BSDP offers built-in support for load balancing. See

“Performance and Load Balancing” on page 64.

Property Type Description

Architectures Array An array of strings of the architectures the image supports.

BootFile String Name of boot file: booter.

Index Integer 1–4095 indicates a local image unique to the server.

4096–65535 is a duplicate, identical image stored on multiple servers

for load balancing.

IsDefault Boolean True specifies this image file as the default boot image on the subnet.

IsEnabled Boolean Sets whether the image is available to NetBoot (or Network Image)

clients.

IsInstall Boolean True specifies a Network Install image; False specifies a NetBoot image.

Name String Name of the image as it appears in the Mac OS X Preferences pane.

RootPath String Specifies the path to the disk image on the server, or the path to an

image on another server. See “Using Images Stored on Other Servers”

on page 22.

Type String NFS or HTTP.

SupportsDiskless Boolean True directs the NetBoot server to allocate space for the shadow files

needed by diskless clients.

Description String Text describing the image.

Language String A code specifying the language to be used while starting from the

image.

1 ... 20 21 22 ... 105

No comments

Apple 95014-2084 User Manual Page 21