
Configuring Network Booting
3-3
Preparing an Image
If you want the ASN to automatically boot a network image when starting up
(using EZ-Install, Netboot, or Directed Netboot), you must use the Site Manager
Image Builder to change the default setting before you attempt to start up.
To use Image Builder:
1. On the Site Manager workstation, open the software image file in the
Image Builder.
Keep the following in mind:
• Be sure to select the correct image. If you select an image for another
router type, you cannot generate the correct files.
• If you configure the router to obtain its image from the network, it cannot
Netboot the image until the kernel image is available on the BOOTP
server.
• Make sure that you extract the software image and all the application
(.exe) files in the ASN directory. The files must be from the same software
image file whose components were created from the same version of
software. If these files are from different software versions, the router
may fail to boot or operate properly.
• Refer to Modifying Software Images for Routers for more instructions.
After you open the image file, the Image Builder automatically generates the
kernel image and application files.
By default, the Image Builder stores these files in /$HOME/.builder_dir/
rel
<rel>
/asn (where
<rel>
is the current router software release for the router).
For example, Version 3.00 of the Site Manager Image Builder tool stores
Version 9.00 files for an ASN in the /$HOME/.builder_dir/rel900/asn
directory.
For additional instructions on how to use the Image Builder, refer to
Modifying Software Images for Routers.
2. If you use a different workstation as a BOOTP server, transfer all of the
files in the directory that contains the kernel file to the new workstation.
Note: BNX software does not support Image Builder.
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