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List:       dhcp-client
Subject:    Re: Questions about booting diskless clients...
From:       Robert Elz <kre () munnari ! OZ ! AU>
Date:       2001-05-09 15:50:14
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    Date:        Wed, 9 May 2001 10:54:37 -0700
    From:        "Keith Kwiatek" <kkwiatek@nist.gov>
    Message-ID:  <072f01c0d8b1$1d71eb70$20110681@dipper>

  | to "fix it" you need to pull back his last good backup across the network,

fine, but that has nothing to do with dhcp.

  | This DOES work... a company already is using bootp/dhcp to do this... I just
  | can't afford the $300K to buy it, so I am trying to see if I can get the
  | network boot part up and running...

I think you're probably misreading ...

  | http://www.tkg.com/products/bmr/tsm/faq.php

My read of that is that they do a standard client network boot, using
the clients standard technique to do that (which for sparc is bootparam
I think, unless Sun have changed it on new boxes) and doesn't involve
dhcp (or bootp) at all.

What they then boot is a special image which is configured to perform
the restore - which is just like what I suggested using a CD instead.

And "passing a boot CD around" isn't how I'd do that, instead I'd
make a thousand of the things, if you have a thousand clients (in
volume, getting CDs pressed is pretty cheap), and send one to every
client.

Either way can have advantages.   Neither uses dhcp for anything
beyond the normal network configuration.

Whether you use dhcp or bootparam though, you can specify what
image the client should boot.   If the only time they ever boot from
the net is to reinstall themselves, then you could have the image
set to be the reinstaller.   If they're likely to ever net boot for
other reasons then you'd need to alter the image they boot when they're
about to reinstall (which is an advantage of the CD - you'd expect
people to boot a reinstall CD only if they intended a reinstall - the
CD method is also typically a lot faster).

But none of this suggests altering the way that dhsp works - in fact
that FAQ says exactly the opposite.   Look at #10.

kre

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