Wang (& Lissa):
Thanks, again, for your patience.
I realize that Genesis is/was supposed to replace all the nbroot*
packages. However, clearly from the responses on this list there are
people who are using it to chain-load the genesis kernel. But even
assuming we don't care about that, I still don't have a working
solution, and here's why:
Although, my dhcpd.conf contains:
shared-network eth2 {
subnet 10.100.0.0 netmask 255.255.255.0 {
max-lease-time 43200;
min-lease-time 43200;
default-lease-time 43200;
option routers 10.100.0.1;
next-server 10.100.0.1;
option log-servers 10.100.0.1;
option ntp-servers 10.100.0.1;
option domain-name "local";
option domain-name-servers 10.100.0.1;
option domain-search "local", "bare";
zone local. {
primary 10.100.0.1; key xcat_key;
}
zone 0.100.10.IN-ADDR.ARPA. {
primary 10.100.0.1; key xcat_key;
}
if option user-class-identifier = "xNBA" and option
client-architecture = 00:00 { #x86, xCAT Network Boot Agent
always-broadcast on;
filename =
"http://10.100.0.1/tftpboot/xcat/xnba/nets/10.100.0.0_24";;
} else if option user-class-identifier = "xNBA" and option
client-architecture = 00:09 { #x86, xCAT Network Boot Agent
filename =
"http://10.100.0.1/tftpboot/xcat/xnba/nets/10.100.0.0_24.uefi";;
} else if option client-architecture = 00:00 { #x86
filename "xcat/xnba.kpxe";
} else if option vendor-class-identifier = "Etherboot-5.4" { #x86
filename "xcat/xnba.kpxe";
} else if option client-architecture = 00:07 { #x86_64 uefi
filename "xcat/xnba.efi";
} else if option client-architecture = 00:09 { #x86_64 uefi
alternative id
filename "xcat/xnba.efi";
} else if option client-architecture = 00:02 { #ia64
filename "elilo.efi";
} else if substring(filename,0,1) = null { #otherwise, provide
yaboot if the client isn't specific
filename "/yaboot";
}
range dynamic-bootp 10.100.0.100 10.100.0.150;
} # 10.100.0.0/255.255.255.0 subnet_end
} # eth2 nic_end
What happens is that the client never loads anything out of
/tftpboot/xcat/xnba/nets/blah....
Instead, all my clients simply load /tftpboot/pxelinux.cfg/0A6400, which
contains:
DEFAULT xCAT
LABEL xCAT
KERNEL xcat/nbk.x86_64
APPEND initrd=xcat/nbfs.x86_64.gz quiet xcatd=10.100.0.1:3001
The prefix 0A6400 is likely related to the Cisco vendor MAC prefix.
This file is created by 'mknb x86_64'. I know, because I can delete it,
run mknb, and it comes back:
[root@ncsu-hn pxelinux.cfg]# ls
0A6400 0A6500 0A6600 7F 98300D 98300DE6 98300DE7 C0A86B
[root@ncsu-hn pxelinux.cfg]# rm -rf ./*
[root@ncsu-hn pxelinux.cfg]# mknb x86_64
Creating genesis.fs.x86_64.lzma in /tftpboot/xcat
[root@ncsu-hn pxelinux.cfg]# ls
0A6400 0A6500 0A6600 7F 98300D 98300DE6 98300DE7 C0A86B
[root@ncsu-hn pxelinux.cfg]# cat 0A6400
DEFAULT xCAT
LABEL xCAT
KERNEL xcat/nbk.x86_64
APPEND initrd=xcat/nbfs.x86_64.gz quiet xcatd=10.100.0.1:3001
The RPM xnba-undi does not install /tftpboot/xcat/nbk.x86_64, and
neither does any of the xCAT-genesis-* RPMS.
[root@ncsu-hn ~]# rpm -ql xnba-undi
/tftpboot/xcat/xnba.efi
/tftpboot/xcat/xnba.kpxe
And so the result is that all my nodes PXE boot to a dead end. Do you
see????
On 01/22/2014 02:55 AM, Xiao Peng Wang wrote:
> Why do you say that you need nbk.x86_64? Is this file listed in the
> </tftpboot/xcat/xnba/nets/>?
>
> With the latest xCAT build, it needs
> /tftpboot/xcat/genesis.kernel.x86_64 instead of nbk.*
>
> Thanks
> Best Regards
> ----------------------------------------------------------------------
> Wang Xiaopeng (王晓朋)
> IBM China System Technology Laboratory
> Tel: 86-10-82453455
> Email: [email protected]
> Address: 28,ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road,
> Haidian District Beijing P.R.China 100193
>
> Inactive hide details for Jonathan Mills ---2014/01/22 14:10:32---It
> would seem to me that what I am missing is the whole of thJonathan Mills
> ---2014/01/22 14:10:32---It would seem to me that what I am missing is
> the whole of the xCAT-nbroot infrastructure...because
>
> From: Jonathan Mills <[email protected]>
> To: xCAT Users Mailing list <[email protected]>,
> Date: 2014/01/22 14:10
> Subject: Re: [xcat-user] Frustrating time with sequential node discovery
>
> ------------------------------------------------------------------------
>
>
>
> It would seem to me that what I am missing is the whole of the
> xCAT-nbroot infrastructure...because it isn't part of xcat-core, nor
> xcat-dep. So I didn't grab it. But it just so happens...you need it.
>
> The file
>
> /tftpboot/xcat/nbk.x86_64
>
> is provided by the RPM xCAT-nbkernel-x86_64. Which is missing from my
> yum repo mirrior, and from my hosts.
>
>
> Anything else I'm missing? Hopefully if I grab correct copies of
> xCAT-nbkernel and xCAT-nbroot (or xCAT-nbroot2?) then node discovery
> will actually work.
>
> On 1/22/14, 12:08 AM, Xiao Peng Wang wrote:
> > Both Josh and Russell are correct.
> >
> > xNBA is a customized pxe and genesis is a xCAT customized diskless linux
> > system to run discovery and other tasks like 'bmcsetup'. It does not
> > need the /tftpboot/pxelinux.cfg/.* to load the genesis.
> >
> > For discovery, if a node is not defined in xCAT, the dhcp configuration
> > in the /etc/dhcp/dhcpd.conf or /etc/dhcpd.conf is used to reply the dhcp
> > request from not-discovered node.
> >
> > In your dhcpd.conf, it should have the following part for your
> > deployment network. If not, run 'makedhcp -n' to recreate your
> dhcpd.conf.
> > if option user-class-identifier = "xNBA" and option
> > client-architecture = 00:00 { #x86, xCAT Network Boot Agent
> > always-broadcast on;
> > filename =
> "http://10.1.0.207/tftpboot/xcat/xnba/nets/10.1.0.0_16";;
> > } else if option user-class-identifier = "xNBA" and option
> > client-architecture = 00:09 { #x86, xCAT Network Boot Agent
> > filename =
> > "http://10.1.0.207/tftpboot/xcat/xnba/nets/10.1.0.0_16.uefi";;
> > } else if option client-architecture = 00:00 { #x86
> > filename "xcat/xnba.kpxe";
> > } else if option vendor-class-identifier = "Etherboot-5.4" { #x86
> > filename "xcat/xnba.kpxe";
> > } else if option client-architecture = 00:07 { #x86_64 uefi
> > filename "xcat/xnba.efi";
> > } else if option client-architecture = 00:09 { #x86_64 uefi
> > alternative id
> > filename "xcat/xnba.efi";
> > }
> >
> > During the boot process of a not-discovered node, dhcpd will tell the
> > node to load xcat/xnba.kpxe first and then the configuration file
> > http://<xcat mn>/tftpboot/xcat/xnba/nets/10.1.0.0_16. Then the xnba will
> > load the genesis.
> >
> > Take a look of the syslog to see whether the xnba was downloaded
> > successfully from tftp server. And look into the httpd log to see
> > whether the genesis has been downloaded successfully.
> >
> >
> > Thanks
> > Best Regards
> > ----------------------------------------------------------------------
> > Wang Xiaopeng (王晓朋)
> > IBM China System Technology Laboratory
> > Tel: 86-10-82453455
> > Email: [email protected]
> > Address: 28,ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road,
> > Haidian District Beijing P.R.China 100193
> >
> > Inactive hide details for Josh Nielsen ---2014/01/22 05:56:00---Ah, I
> > see what you are saying now. Well, I hope the thread I stJosh Nielsen
> > ---2014/01/22 05:56:00---Ah, I see what you are saying now. Well, I hope
> > the thread I stumbled on that Jarrod replied to help
> >
> > From: Josh Nielsen <[email protected]>
> > To: xCAT Users Mailing list <[email protected]>,
> > Date: 2014/01/22 05:56
> > Subject: Re: [xcat-user] Frustrating time with sequential node discovery
> >
> > ------------------------------------------------------------------------
> >
> >
> >
> > Ah, I see what you are saying now. Well, I hope the thread I stumbled
> > on that Jarrod replied to helps figure out why his configuration is
> > looking to the outdated (according to what Jarrod said) configuration
> > files in /tftpboot/pxelinux.cfg/. Looks like it is either
> > /etc/dhcpd.conf or /var/lib/dhcpd/dhcpd.leases related in that case.
> >
> > On Tue, Jan 21, 2014 at 3:51 PM, Russell Jones
> > <[email protected]> wrote:
> > > It *should* work with xNBA and Genesis - xNBA is the PXE image that
> > > loads Genesis. :-)
> > >
> > > Genesis is the utility image that handles shell commands,
> runimages, etc.
> > >
> > > Don't confuse NBFS with xNBA - NBFS is deprecated via Genesis. xNBA is
> > > the gpxe image that loads Genesis or your normal OS image depending on
> > > what you sent via nodeset. Genesis would not be able to load without
> > > xNBA (or standard PXE), and neither would any netboot images.
> > >
> > > On 1/21/2014 3:33 PM, Josh Nielsen wrote:
> > >> my case it still works with
> > >> both xnba and genesis because of the nature of PXE chainloading. It
> > >> probably adds deployment time, but it actually works in such a mixed
> > >> configuration.
> > >>
> > >> -Josh
> > >
> > >
> > >
> >
> ------------------------------------------------------------------------------
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> >
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>
> --
> Jonathan Mills
> Systems Administrator
> Renaissance Computing Institute
> UNC-Chapel Hill
>
> ------------------------------------------------------------------------------
> CenturyLink Cloud: The Leader in Enterprise Cloud Services.
> Learn Why More Businesses Are Choosing CenturyLink Cloud For
> Critical Workloads, Development Environments & Everything In Between.
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--
Jonathan Mills
Systems Administrator
Renaissance Computing Institute
UNC-Chapel Hill
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