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RE: Issue with Aquiring DHCP

I've had this same problem for this reason.  i.e. PXE booting a dell
1750 over the on-board gig-1 (chosing between gig-1 and gig-2) with an
additional e1000 card in the box will boot PXE over the gig-1 then fail
on the anaconda DHCP with this error.  When I modify the ks.cfg to use
eth1 instead of eth0 it works.  As Jeremy stated below, I think it's
because the BIOS and linux differ on which interface is eth0 once the OS
starts to load.  


-----Original Message-----
From: Jeremy Silver [mailto:jeremy broadware com] 
Sent: Monday, June 07, 2004 12:51 PM
To: 'Discussion list about Kickstart'
Subject: RE: Issue with Aquiring DHCP

Do you have multiple ethernet interfaces?  Linux and the BIOS do not
always agree on which is the 'first' ethernet port(and therefore eth0)
in the system.  On some systems I have to use the second (as labeled on
the server
chassis) ethernet port for kickstart  as Linux see it as eth0, or
eth1 as the ksdevice to use the first ethernet port.

-----Original Message-----
From: kickstart-list-bounces redhat com
[mailto:kickstart-list-bounces redhat com] On Behalf Of Andy Ciordia
Sent: Monday, June 07, 2004 10:41 AM
To: Discussion list about Kickstart
Subject: Re: Issue with Aquiring DHCP

Brian Long wrote:
> Does your switch have spanning tree port-fast enabled?  This tells the

> switch to disable spanning tree calculations for that port.  If not 
> configured and spanning tree is enabled on your network, the time it 
> takes your link to come up could be 30+ seconds and that's too long 
> for "loader" to acquire an IP.

Sorry for being a bit dense atm, are you saying spanning tree port-fast
should be enabled?  As well, it does aquire the first pass, through
PXE's asking DHCP for an address, that is resolved immediatly.  Its the
second DHCP request which is when the install engages that stalls.

Currently on out Catalyst 5000:

#uplinkfast groups
set spantree uplinkfast disable
set spantree backbonefast disable
#vlan 208
set spantree enable     208
set spantree fwddelay 15    208
set spantree hello    2     208
set spantree maxage   20    208
set spantree priority 32768 208

Andy Ciordia, Network Engineer
Planned Giving Design Center (www.pgdc.com) 10800-D Independence Pointe
Pkwy, Matthews, NC 28105
Ph: (704)849-0731 x106  |  Fax: (770)456-5239

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