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Re: [xcat-user] Adding kernel parameters to stateless images.
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From: <Viv...@ep...> - 2012-12-10 13:01:17
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Ling/Russell,
Thanks. My bad, it was a long week :). That did the trick, an
lsdef on that node now shows the addkcmdline for the node and after doing
a nodeset netboot I've confirmed it's showing up in the tftpboot file as
well.
-Brad
===================================================
Brad Viviano
High Performance Computing & Scientific Visualization
Lockheed Martin, Supporting the EPA
Research Triangle Park, NC
919-541-2696
HSCSS Task Order Lead - Ravi Nair
919-541-5467 - Nai...@ep...
High Performance Computing Subtask Lead - Durward Jones
919-541-5043 - Jon...@ep...
Environmental Modeling and Visualization Lead - Heidi Paulsen
919-541-1834 - Pau...@ep...
From: Russell Jones <ru...@jo...>
To: xca...@li...
Date: 12/07/2012 02:08 PM
Subject: Re: [xcat-user] Adding kernel parameters to stateless
images.
Brad,
You have a typo. It's "addkcmdline", not "addcmdline".
Example:
[root@xcat-mn ~]# chdef cn1 addkcmdline="rdloaddriver=scsi_dh_rdac"
1 object definitions have been created or modified.
[root@xcat-mn ~]# lsdef cn1
Object name: cn1
addkcmdline=rdloaddriver=scsi_dh_rdac
arch=x86_64
chain=runcmd=standby
currchain=boot
currstate=install centos6.2-x86_64-compute
[root@xcat-mn nodes]# cat cn1
#!gpxe
#install centos6.2-x86_64-compute
imgfetch -n kernel http://$
{next-server}/tftpboot/xcat/centos6.2/x86_64/vmlinuz
imgload kernel
imgargs kernel quiet repo=http://192.168.1.1/install/centos6.2/x86_64/ ks=
http://192.168.1.1/install/autoinst/cn1 ksdevice=eth0
rdloaddriver=scsi_dh_rdac BOOTIF=01-${netX/machyp}
imgfetch http://${next-server}/tftpboot/xcat/centos6.2/x86_64/initrd.img
imgexec kernel
On 12/7/2012 12:41 PM, Viv...@ep... wrote:
Ling,
Thanks, but that is a no go. The first thing I tried was editing
boot params. The value in bootparams gets reset when I do a "nodeset
storage1 netboot".
# lsdef storage1 | grep kcmdline
kcmdline=imgurl=
http://!myipfn!//install/netboot/rhel6_c/x86_64/storage/rootimg.gz
XCAT=!myipfn!:3001 console=tty0 console=ttyS0,115200
rdloaddriver=scsi_dh_rdac
# nodeset storage1 netboot
storage1: netboot rhel6_c-x86_64-storage
# lsdef storage1 | grep kcmdline
kcmdline=imgurl=
http://!myipfn!//install/netboot/rhel6_c/x86_64/storage/rootimg.gz
XCAT=!myipfn!:3001 console=tty0 console=ttyS0,115200
Your suggestions for chdef didn't take:
# chdef storage1 addcmdline="rdloaddriver=scsi_dh_rdac"
Error: 'addcmdline' is not a valid attribute name for for an object type
of 'node'.
Error: Skipping to the next attribute.
Error: One or more errors occured when attempting to create or modify xCAT
object definitions.
Here is the lsdef on the node if it helps.
# lsdef storage1
Object name: storage1
appstatus=xend=down,sshd=up,rdp=down,pbs=down,msrpc=down
appstatustime=12-07-2012 13:33:01
arch=x86_64
bmc=storage1-bmc
bmcport=0
chain=runcmd=bmcsetup,shell
currchain=shell
currstate=netboot rhel6_c-x86_64-storage
groups=all,storage
initrd=xcat/netboot/rhel6_c/x86_64/storage/initrd-stateless.gz
ip=172.20.100.9
kcmdline=imgurl=
http://!myipfn!//install/netboot/rhel6_c/x86_64/storage/rootimg.gz
XCAT=!myipfn!:3001 console=tty0 console=ttyS0,115200
kernel=xcat/netboot/rhel6_c/x86_64/storage/kernel
mac=e4:1f:13:6a:31:f4
mgt=ipmi
mtm=7947AC1
netboot=xnba
nfsserver=172.20.0.1
ondiscover=nodediscover
os=rhel6_c
postbootscripts=otherpkgs
postscripts=syslog,remoteshell,syncfiles,setupntp,addsiteyum,ipoib,mmsdrrestore
profile=storage
provmethod=netboot
serial=KQ8719X
serialport=0
serialspeed=115200
status=ping
statustime=12-07-2012 12:09:01
switch=switch0
switchport=8
Basically I'd like the insert something at the end of kcmdline. I don't
want to just SET "kcmdline" because other things like console speed and
such come from other xCAT tables to build this. It feels like there
should be a parent table someplace that I need to put a value in for node
"storage1".
-Brad
===================================================
Brad Viviano
High Performance Computing & Scientific Visualization
Lockheed Martin, Supporting the EPA
Research Triangle Park, NC
919-541-2696
HSCSS Task Order Lead - Ravi Nair
919-541-5467 - Nai...@ep...
High Performance Computing Subtask Lead - Durward Jones
919-541-5043 - Jon...@ep...
Environmental Modeling and Visualization Lead - Heidi Paulsen
919-541-1834 - Pau...@ep...
From: Ling Gao <li...@us...>
To: xCAT Users Mailing list <xca...@li...>
Cc: xca...@li...
Date: 12/07/2012 01:25 PM
Subject: Re: [xcat-user] Adding kernel parameters to stateless
images.
Hi,
You can try to add it to bootparams.addkcmdline by tabedit bootparams
or chdef <nodenames> addkcmdline="rdloaddriver=scsi_dh_rdac"
Hope it helps,
Ling
Ling Gao
Poughkeepsie Unix Development Lab
IBM Systems and Technology Group
Internal: T/L 293-5692
External: li...@us..., 845-433-5692
"I never worry about the future. It comes soon enough." --- Albert
Einstein
From: Viv...@ep...
To: xca...@li...
Date: 12/07/2012 12:16 PM
Subject: [xcat-user] Adding kernel parameters to stateless images.
Good morning,
I've searched Google and the xCAT WIKI and just couldn't find the
answer. If I missed the FAQ, sorry. I have an iDataplex cluster with
GPFS and xCAT 2.7.6 (yum install) on RHEL 6.3. The GPFS nodes are
stateless attached to a DS3500. We're having the RDAC / FC timing issues
detailed in this Redhat Knowledge article:
https://access.redhat.com/knowledge/solutions/18746
I've found a work around, which is to add "rdloaddriver=scsi_dh_rdac" to
the kernel boot line. I've tested it by editing the boot file in
/tftpboot/xcat/xnba/nodes for one of the GPFS nodes and adding
rdloaddriver to "imgargs kernel" and rebooting. My boot time went from >7
minutes after POST to < 30 seconds, with no errors on the ghost paths.
But, I can't find which tabch/tabedit settings I need to use to adjust to
make it permanent. Editing bootparms and running nodeset didn't work. How
do I permanently add a value to "kcmdline" for a stateless node, without
breaking what is already set there.
Thanks,
-Brad Viviano
===================================================
Brad Viviano
High Performance Computing & Scientific Visualization
Lockheed Martin, Supporting the EPA
Research Triangle Park, NC
919-541-2696
HSCSS Task Order Lead - Ravi Nair
919-541-5467 - Nai...@ep...
High Performance Computing Subtask Lead - Durward Jones
919-541-5043 - Jon...@ep...
Environmental Modeling and Visualization Lead - Heidi Paulsen
919-541-1834 - Pau...@ep...
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