So it has to be adaptive in the filename field for it to work.
Here's an example of the omshell produced host definition of a node:
host d3 {
dynamic;
hardware ethernet 08:94:ef:3f:e1:32;
uid 08:94:ef:3f:e1:32;
fixed-address 172.30.78.3;
supersede server.ddns-hostname = "d3";
supersede host-name = "d3";
if option user-class-identifier = "xNBA" and option client-
architecture
= 00:00 {
supersede server.always-broadcast = 01;
supersede server.filename =
"http://${next-server}/tftpboot/xcat/xnba/nodes/d3";;
} elsif option user-class-identifier = "xNBA" and option
client-architecture = 00:09 or option client-
architecture = 00:
07 {
supersede server.filename =
"http://${next-
server}/tftpboot/xcat/xnba/nodes/d3.uefi";
} elsif option client-architecture = 00:07 {
supersede server.filename = "xcat/xnba.efi";
} elsif option client-architecture = 00:00 {
supersede server.filename = "xcat/xnba.kpxe";
} else {
supersede server.filename = "";
}
}
The important part is:
} elsif option user-class-identifier = "xNBA" and option
client-architecture = 00:09 or option client-
architecture = 00:07 {
supersede server.filename = "http://${next-
server}/tftpboot/xcat/xnba/nodes/d3.uefi";
} elsif option client-architecture = 00:07 {
supersede server.filename = "xcat/xnba.efi";
}
Otherwise it'll keep trying to nest itself, and at some point it nests
too deeply and it's a pretty messy circumstance.
Here's it written up online:
http://ipxe.org/howto/dhcpd#pxe_chainloading
Normally the xCAT dhcp.pm code does this, but if manually doing it,
this is the expectation.
Out of curiosity, if a server sent just filename, with all IP addresses
set to 0.0.0.0, would that be hypothetically be considered ok to
coexist with your other DHCP server? Want to see if my goals are
aligned with making this particular situation easier.
-----Original Message-----
From: Carmelo Ponti (CSCS) <cpo...@cscs.ch>
Reply-To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Subject: Re: [xcat-user] [External] UEFI installation problem
Date: Fri, 08 Jun 2018 10:18:11 +0200
Jarrod,
on our xCAT server (Red Hat Enterprise Linux Server release 7.5) I'm
using the official redhat DHCP server (dhcp-4.2.5-68.el7_5.1.x86_64).
The only customization is that I don't use the xCAT
/etc/dhcp/dhcpd.conf file but I created an other directory call
/etc/dhcp.cscs in order to server all our dhcp client (also the ones
not controlled by xCAT). Following an example of our configuration:
# cat /etc/dhcp.cscs/dhcpd.conf
#
ddns-update-style none;
option domain-name "cscs.ch";
option domain-name-servers 148.187.x.x, 148.187.x.x;
default-lease-time 14400; # 4 hours
max-lease-time 86400; # 1 day
log-facility local7;
##########################
# EFI
##########################
option space PXE;
option PXE.mtftp-ip code 1 = ip-address;
option PXE.mtftp-cport code 2 = unsigned integer 16;
option PXE.mtftp-sport code 3 = unsigned integer 16;
option PXE.mtftp-tmout code 4 = unsigned integer 8;
option PXE.mtftp-delay code 5 = unsigned integer 8;
option arch code 93 = unsigned integer 16; # RFC4578
##########################
# END EFI
##########################
subnet 148.187.1.0 netmask 255.255.255.0 {
option routers 148.187.1.2;
option domain-name-servers 148.187.x.x, 148.187.x.x;
}
subnet 148.187.2.0 netmask 255.255.255.128 {
option routers 148.187.2.2;
option domain-name-servers 148.187.x.x, 148.187.x.x;
}
....
include "/etc/dhcp.cscs/dhcp-conf-dir/cluster1.conf";
include "/etc/dhcp.cscs/dhcp-conf-dir/cluster2.conf";
include ...
where /etc/dhcp.cscs/dhcp-conf-dir/cluster1.conf
host server01.cscs.ch {
hardware ethernet 90:E2:BA:A1:56:F4; # 10G ETH0 NIC
fixed-address 148.187.x.x;
filename "xcat/xnba.efi";
next-server 148.187.x.x;
}
or /etc/dhcp.cscs/dhcp-conf-dir/cluster2.conf
host servername01.cscs.ch {
hardware ethernet 08:94:EF:5F:E0:CC;
fixed-address 148.187.x.x;
next-server 148.187.x.x;
filename "pxelinux.0";
}
and so on.
Unfortunately the server01 has this strange behavior.
Carmelo
On Thu, 2018-06-07 at 16:54 +0000, Jarrod Johnson wrote:
> Is the external DHCP server ISC or other?
>
> Can you share how you tried to do the adaptive DHCPOFFER with
> different filenames depending on the request?
>
> In the future, I hope to provide ProxyDHCP which would allow direct
> DHCP OFFER control for PXE filename without imposing on addressing,
> but for now...
>
> -----Original Message-----
> From: Carmelo Ponti (CSCS) <cpo...@cscs.ch>
> Sent: Thursday, June 07, 2018 12:09 PM
> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
> Subject: Re: [xcat-user] [External] UEFI installation problem
>
> Jarrod,
>
> On Thu, 2018-06-07 at 15:00 +0000, Jarrod Johnson wrote:
> > Is that preceeded by a lot of the same output over and over?
>
> Yes, I'm seeing the same message many times
>
> > I see xnba downloading xnba, which should not be
> > happening…. Dhcp
> > should be doing a different offer…
>
> We are using a centralized DHCP at CSCS (not the one offered by
> xCAT).
> I tried to configure it to respect the xCAT rules but maybe I'm doing
> something wrong. Any advice?
>
> Carmelo
>
> >
> > From: Carmelo Ponti (CSCS) <cpo...@cscs.ch>
> > Sent: Thursday, June 07, 2018 10:21 AM
> > To: xcat-user@lists.sourceforge.net
> > Subject: [External] [xcat-user] UEFI installation problem
> >
> > Hello,
> >
> > I would like to install a intel server board S2600WT (BIOS version
> > SE5C610.86B.01.01.0011 08/10/2015) using xcat with UEFI but I got
> > the
> > following error at the console:
> >
> > xCAT Network Boot Agent
> > iPXE 1.0.3-131028 (d603e) -- Open Source Network Boot Firmare --
> > http
> > ://ipxe.org
> > Features: HTTP HTTPS iSCSI DNS TFTP EFI
> > net1: 90:e2:ba:a1:56:f4 using <NULL> on EFI SNP (open) [Link:up,
> > TX:0
> > TXE:0 RX:0 RXE:0] DHCP (net1 90:e2:ba:a1:56:f4) ...... ok Next
> > server:
> > 148.187.xxx.xxx
> > Filename: xcat/xnba.efi
> > tftp://148.187.xxx.xxx/xcat/xnba.efi ... ok Could not boot image:
> > Error 0x7f38e002 (http:/ipxe/org/7f38e002) No more network devices
> > Could not boot image: Error 0x7f048002 (http:/ipxe/org/7f048002)
> > No
> > more network devices
> >
> > Currently I'm using xCAT 2.13 and following the server
> > configuration:
> >
> > Object name: server01
> > arch=x86_64
> > bmc=148.187.xxx.xxx
> > bmcpassword=xxxxxx
> > bmcusername=root
> > cons=kvm
> > currchain=boot
> > currstate=install rhels7.4-x86_64-cscs_storage
> > groups=all,cscs
> > hostnames=server01.cscs.ch
> > interface=eno1
> > ip=148.187.xxx.xxx
> > mac=90:e2:ba:a1:56:f4
> > mgt=ipmi
> > netboot=xnba
> > nfsserver=148.187.xxx.xxx
> > nodetype=osi
> > os=rhels7.4
> > postbootscripts=otherpkgs
> > postscripts=syslog,remoteshell,syncfiles
> > power=ipmi
> > primarynic=eno1
> > profile=cscs_storage
> > provmethod=rhels7.4-x86_64-install-cscs_storage
> > status=powering-on
> > statustime=06-07-2018 15:49:19
> > tftpdir=/tftpboot
> > tftpserver=148.187.xxx.xxx
> >
> > dhcp is configured as following:
> >
> > host server01.cscs.ch {
> > hardware ethernet 90:E2:BA:A1:56:F4; # 10G ETH0 NIC
> > fixed-address 148.187.xxx.xxx;
> > filename "xcat/xnba.efi";
> > next-server 148.187.xxx.xxx;
> > }
> >
> > When I ran "nodeset server01 osimage=rhels7.4-x86_64-install-
> > cscs_storage"
> >
> > The following 3 files are created in /tftpboot/xcat/xnba/nodes :
> >
> > server01
> > server01.elilo
> > server01.uefi
> >
> > I'm suspecting a problem with the BIOS version but I'm not sure.
> >
> > Thank you for any advice,
> >
> > Carmelo Ponti
> >
> >
> >
> > --
> >
> > -------------------------------------------------------------------
> > ---
> >
> > Carmelo Ponti System Engineer
> >
> > CSCS Swiss Center for Scientific Computing
> >
> > Via Trevano 131 Email: cpo...@cscs.ch<mailto:cpo...@cscs.ch
> > >
> >
> > CH-6900 Lugano http://www.cscs.ch
> >
> > Phone: +41 91 610 82 15/Fax: +41 91 610 82
> > 82
> >
> > -------------------------------------------------------------------
> > ---
> > -------------------------------------------------------------------
> > -----------
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > _______________________________________________
> > xCAT-user mailing list
> > xCAT-user@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/xcat-user
>
> --
> -------------------------------------------------------------------
> ---
> Carmelo Ponti System Engineer
> CSCS Swiss Center for Scientific Computing
> Via Trevano 131 Email: cpo...@cscs.ch
> CH-6900 Lugano http://www.cscs.ch
> Phone: +41 91 610 82 15/Fax: +41 91 610 82 82
> -------------------------------------------------------------------
> ---
>
> -------------------------------------------------------------------
> -----------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> xCAT-user mailing list
> xCAT-user@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xcat-user
> -------------------------------------------------------------------
> -----------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> xCAT-user mailing list
> xCAT-user@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xcat-user
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