[Casper] Netbooting Across Subnets

Tue Dec 30 14:40:40 PST 2008

thanks for all of the input on this...HNY!

Mark Hughes, Apple Technician
TIS Department, KCKPS USD500
Cell 913-449-7791
mahughe at kckps.org
>>> "Miles Leacy" <miles.leacy at themacadmin.com> 12/30/08 10:28 AM >>>
You can create a separate "NetBoot server" entry in the JSS for each
NetBoot
image.
Give them descriptive display names such as "Diagnostic on Main
NetBoot",
"Imaging on Main NetBoot" etc.  Specify the image info when setting up
your
NetBoot server record.

Go to your JSS, Management Tab, NetBoot Servers and add or edit a
NetBoot
server.  See page 329 in the Casper documentation for detailed
instructions.

If you want to boot an individual machine from a particular NetBoot
server
and image on the fly, use Casper Remote, Reboot tab.  Set the "Reboot
To:"
drop-down to "NetBoot".  Then click the Override Defaults button in the
toolbar.  In the sheet that drops down, select the NetBoot server and
image
you have previously configured in the "NetBoot Server" drop-down and
click
"OK".  Make sure your other Reboot options are as they should be for
your
situation (reboot immediately, give user 5 minutes, etc.), then run the
Casper Remote task.

----------
Miles A. Leacy IV

 Certified System Administrator 10.4
 Certified Technical Coordinator 10.5
 Certified Trainer
Certified Casper Administrator
----------
voice: 1-347-277-7321
miles.leacy at themacadmin.com
www.themacadmin.com

On Tue, Dec 30, 2008 at 10:42 AM, Ryan Harter <rharter at uwsp.edu> wrote:

> I have also seen this and it's been hit or miss with our Intel
machines.
>  It's hard to compare though with so many different networks setups.
> The problem I have had with this is that we have more than one netboot
> image on our server, the default is just for imaging, but we also have
a
> "Maintenance" image that has all of our diagnostic tools, and a bunch
of
> other useful stuff, making it easy to do on site diagnostics and
> partitioning, etc.  With the bless command you don't have the option
of
> choosing your image.  It is however great for booting to the default
image.
> *
> Ryan Harter*
> UW - Stevens Point
> Workstation Developer
> 715.346.2716
> Ryan.Harter at uwsp.edu
>
> On Dec 30, 2008, at 9:38 AM, Miles Leacy wrote:
>
> If you know the fqdn or IP address of the netboot server then you can
> netboot from any subnet using the bless command.
> From the bless man page:
> NETBOOT MODE
>      NetBoot Mode has the following options:
>      --netboot                Instead of setting the active boot
selection
> to a disk-based volume, set the system to NetBoot.
>      --server protocol://[interface@]server
>                               A URL specification of how to boot the
> system. Currently, the only protocol supported is BSDP
>                               ("bsdp"), Apple's Boot Service Discovery
> Protocol. The interface is optional, and the server is the
>                               IPv4 address of the server in
dotted-quad
> notation. If there is not a specific server you'd like to
>                               use, pass "255.255.255.255" to have the
> firmware broadcast for the first available server. Examples
>                               of this notation would be "bsdp://
> 255.255.255.255" and "bsdp://en1@17.203.12.203".
>      --nextonly               Same as for Folder Mode.
>      --options                Same as for Folder Mode.
>      --quiet                  Do not print any output
>      --verbose                Print verbose output
>
> The following command will netboot to the default image on the netboot
> server at IP address 10.0.0.2.
>
> sudo bless --netboot --server bdsp://10.0.0.2
>
> Of course, you'll also have to issue the reboot command.
>
> I have had some difficulty with Power PC machines, but so far this
works as
> described with Intel systems.
>
> ----------
> Miles A. Leacy IV
>
>  Certified System Administrator 10.4
>  Certified Technical Coordinator 10.5
>  Certified Trainer
> Certified Caspe>
> 2008/12/30 Ryan Harter <rharter at uwsp.edu>
>
>> In our environment we have to set up UDP helpers on the router in
order
>> for NetBoot to work across subnets.  Mike Bombich has a good white
paper on
>> this on his website at http://www.bombich.com/mactips/nbas.html.
>>  *
>> Ryan Harter*
>> UW - Stevens Point
>> Workstation Developer
>> 715.346.2716
>> Ryan.Harter at uwsp.edu
>>
>> On Dec 30, 2008, at 8:51 AM, Mark Hughes wrote:
>>
>> I have a new lab that has been setup w/ Intel iMacs straight out of
the
>> box and I'm wanting to
>> use an existing image that we run on our laptops minus XP.  In
testing I
>> know this works fine.  The issue I'm
>> having is these machines are on a .12 subnet and the netboot server
is on
>> a .79 subnet and I think I remember Tom
>> mentioning that netboot doesn't like going across subnets.  Can
anyone
>> confirm that and have any suggestions that might help with this?
>>
>> Thanks in advance....
>>
>>
>> Mark Hughes, Apple Technician
>> TIS Department, KCKPS USD500
>> Cell 913-449-7791
>> mahughe at kckps.org
>> _______________________________________________
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>>
>>
>>
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