In my experience if you pull out the floppy before the OS starts installing
Unattended won't work properly. But once the OS starts installing you can
pull out the floppy and re-use it in another system without trouble. I
recently did about half a dozen systems with a single floppy and didn't have
any trouble.

So is this a problem with the Unattended boot disk or the way it is being
used?

--
Perfection is just a word I use occasionally with mustard.

Atom Powers
Systems Administrator
Pyramid Breweries Inc.
206.682.8322 x251

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dag
Nummedal
Sent: Tuesday, August 24, 2004 4:53 PM
To: Unattended List
Subject: [Unattended] Longstanding bug in Unattended boot floppy.

This will only manifes when booting from floppies or another persistent
media.  To manifest the bug, start an install with a floppy, remove the
floppy and start an install with the same floppy on another computer.

During the boot process Microsoft's TCP-stack will create a hidden file
\net\dhcp.prm, with the parameters from the DHCP-server.  If the file already
exists, the client will try to extend the old lease.  Since the address is
already leased to the first computer, the second computer gets a DHCPNAK.
Since the lease isn't expired, the second computer will ignore the DHCPNAK,
and use the same IP-address.  This is NOT a good thing :->

Solution:

Add attrib.com (7k) to the floppy.

Add the following to autoexec.bat (possibly with som errorchecking around
it):

attrib -r -s -h \net\dhcp.prm
del \net\dhcp.prm

Attrib is needed, since dhcp.prm is a hidden system file.

--
Dag Nummedal ([EMAIL PROTECTED])



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