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Updating an existing mac os x netboot disk image – Apple Mac OS X Server (version 10.2.3 or later) User Manual

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NetBoot

527

Updating an Existing Mac OS X NetBoot Disk Image

You can apply a Mac OS X system update to an existing NetBoot image so that your clients
start up from the latest available system.

You can download Mac OS system updates from www.apple.com/support.

To apply a Mac OS X update to a NetBoot image:

1

Log on to the server as the root user.

2

Disable the image you want to update.

Open Server Settings, click the Network tab, click DHCP/NetBoot, and choose Configure
DCHP/NetBoot. On the Image tab, clear the Enabled checkbox for the image.

3

Unlock the image (the image.dmg file in /Library/NetBoot/NetBootSPx/image.nbi).

Select the file, choose Get Info from the Finder’s File menu, and clear the Locked checkbox.

4

Unlock the associated boot file /Library/NetBoot/NetBootSPx/image.nbi/booter.

5

Double-click the image file to mount the image.

6

Run the Mac OS X update installer.

Select the mounted image as the destination disk for the update.

7

Open the Terminal application and enter these commands to update the boot files:

cd /Library/NetBoot/NetBootSPx/image.nbi

vsdbutil -a /Volumes/image

kextcache -l -n -m mach.macosx.mkext /Volumes/image/System/Library/Extensions

cp /Volumes/image/usr/standalone/ppc/bootx.bootinfo booter

cp /Volumes/image/mach_kernel mach.macosx

8

Enable the image using Server Settings.

Important

To update an image using these instructions, you must have been logged in to

the server as the root user when you created the image.

LL0395.Book Page 527 Wednesday, November 20, 2002 11:44 AM