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Re: NetBoot query
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Re: NetBoot query

David,

I was never able to get a working NetBoot image from the original Mac
OS X disks (as it asks for). I don't doubt that it's possible, but it
never worked for me. I was, however, able to get a working image with
Carbon Copy Cloner (bombich.com). It has options to create an image
file on the destination disk and to make it NetBootable.

The other thing I know is that your client and server need to be on the
same subnet. When the client is flashing the world icon, it is looking
for and exchanging info with the server. Those exchanges happen over
UDP -- first, a BootP negotiation through which the client acquires an
IP address and, second, a TFTP (Trivial File Transfer Protocol)
negotiation that transfers the initial boot files to the client. Most
routers don't route these UDP packets, so they never make it across
subnets.

With Carbon Copy Cloner and our machines on the same subnet, we started
to see progress.

Once we were able to get our clients to successfully boot from the
server, we contacted our Network Ops office and had them turn on UDP
routing for our subnets. This allowed us to NetBoot our lab machines
on one subnet from the OS X Server in our office on another subnet.

Let me know if you make any progress with this.

Richard Miller


On Jun 14, 2004, at 8:06 AM, David Riddle wrote:

> X-Serve G5, 10.3.4
>
> I am trying to set my server up to NetBoot. I have tried two images,
> one from an existing 10.2.8 image with a fixed IP number set in it,
> and one created from a 10.3 Master CD set. All required services,
> including access to the network central DNS server are reported as
> being 'OK'.
>
> On an attempt to 'N' boot. there is some kind of recognition by the
> server that a client is trying to connect, but the 'world' icon keeps
> flashing on the client and nothing more happens. One iMac LCD client
> tested never gets anywhere at all, another times out and boots on the
> hard drive after a while.
>
> I have no idea what is going on, but...
>
> Question:
>
> What determines how the clients pick up their IP number?
>
> a) If the CD original is used is the image automatically set to use
> DHCP?
>
> b) If an existing image is used, is the network setting changed at
> some point? If not why doesn't the manual say anything about the
> network settings required of disk images?
>
> Any clues would be welcome.
>
> TIA
>
> --
> ************************************************************
> David Riddle, Senior Micro Officer (Macintosh Systems)
> Goldsmiths College London
> New Cross, London SE14 6NW, UK
>
> LIST owner, MAC-SUPPORTERS, M-L-C, WEB-SUPPORT, UK-SCHOOLS
>
> Tel: 020 7919 7546 Fax: 020 7919 7556
> Mobile: 07966 472340 e-Mail: email@hidden
> ************************************************************
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References: 
 >NetBoot query (From: David Riddle <email@hidden>)



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