CobblerTest

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(Cobbler Testing on a 4 node 1950 Cluster)
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End of day 1.
End of day 1.
 +
 +
==========================================================
 +
 +
Day 2:
 +
 +
Cobbler howto-2
 +
=============
 +
 +
 +
[root@test-plccg ~]# cobbler check
 +
The following potential problems were detected:
 +
#0: service dhcpd is not running
 +
#1: since iptables may be running, ensure 69, 80, and 25151 are unblocked
 +
#2: yum-utils need to be at least version 1.1.17 for reposync -l, current version is 1.1.16
 +
#3: The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to 'cobbler' and should be changed
 +
[root@test-plccg ~]#
 +
 +
 +
 +
[root@test-plccg ~]# cobbler list
 +
distro Centos5.4-x86_64
 +
  profile Centos5.4-x86_64
 +
  profile rescue-Centos5.4-x86_64
 +
distro Centos5.4-xen-x86_64
 +
  profile Centos5.4-xen-x86_64
 +
[root@test-plccg ~]#
 +
 +
 +
[root@test-plccg ~]# cobbler distro list
 +
Centos5.4-x86_64
 +
Centos5.4-xen-x86_64
 +
[root@test-plccg ~]#
 +
 +
 +
[root@test-plccg ~]# cobbler profile list
 +
Centos5.4-x86_64
 +
Centos5.4-xen-x86_64
 +
rescue-Centos5.4-x86_64
 +
[root@test-plccg ~]#
 +
 +
 +
No systems are registered with cobbler at the moment:-
 +
 +
[root@test-plccg ~]# cobbler system list
 +
[root@test-plccg ~]#
 +
 +
 +
Lets create a profile for compute-nodes:-
 +
 +
[root@test-plccg ~]# cobbler profile copy --name=Centos5.4-x86_64 --newname=ComputeNodes
 +
 +
 +
[root@test-plccg ~]# cobbler profile list
 +
Centos5.4-x86_64
 +
Centos5.4-xen-x86_64
 +
ComputeNodes                # <------------ Newly added profile!
 +
rescue-Centos5.4-x86_64
 +
[root@test-plccg ~]#
 +
 +
 +
[root@test-plccg ~]# cobbler profile report --name=ComputeNodes
 +
profile              : ComputeNodes
 +
distro              : Centos5.4-x86_64
 +
comment              :
 +
created              : Tue Feb  2 09:06:50 2010
 +
dhcp tag            : default
 +
enable menu          : True
 +
kernel options      : {}
 +
kickstart            : /var/lib/cobbler/kickstarts/default.ks  # < ------------ Notice this default Kickstart.
 +
ks metadata          : {}
 +
mgmt classes        : []
 +
modified            : Tue Feb  2 09:06:50 2010
 +
name servers        : []
 +
name servers search  : []
 +
owners              : ['admin']
 +
post kernel options  : {}
 +
redhat mgmt key      : <<inherit>>
 +
redhat mgmt server  : <<inherit>>
 +
repos                : []
 +
server              : <<inherit>>
 +
template_files      : {}
 +
virt bridge          : xenbr0
 +
virt cpus            : 1
 +
virt file size      : 5
 +
virt path            :
 +
virt ram            : 512
 +
virt type            : qemu
 +
 +
[root@test-plccg ~]#
 +
 +
 +
[root@test-plccg ~]# cat /var/lib/cobbler/kickstarts/default.ks
 +
# this file intentionally left blank
 +
# admins:  edit it as you like, or leave it blank for non-interactive install
 +
 +
 +
[root@test-plccg ~]# cat /var/lib/cobbler/kickstarts/sample.ks
 +
#platform=x86, AMD64, or Intel EM64T
 +
# System authorization information
 +
auth  --useshadow  --enablemd5
 +
# System bootloader configuration
 +
bootloader --location=mbr
 +
# Partition clearing information
 +
clearpart --all --initlabel
 +
# Use text mode install
 +
text
 +
# Firewall configuration
 +
firewall --enabled
 +
# Run the Setup Agent on first boot
 +
firstboot --disable
 +
# System keyboard
 +
keyboard us
 +
# System language
 +
lang en_US
 +
# Use network installation
 +
url --url=$tree
 +
# If any cobbler repo definitions were referenced in the kickstart profile, include them here.
 +
$yum_repo_stanza
 +
# Network information
 +
$SNIPPET('network_config')
 +
# Reboot after installation
 +
reboot
 +
 +
#Root password
 +
rootpw --iscrypted $default_password_crypted
 +
# SELinux configuration
 +
selinux --disabled
 +
# Do not configure the X Window System
 +
skipx
 +
# System timezone
 +
timezone  America/New_York
 +
# Install OS instead of upgrade
 +
install
 +
# Clear the Master Boot Record
 +
zerombr
 +
# Allow anaconda to partition the system as needed
 +
autopart
 +
 +
 +
%pre
 +
$SNIPPET('log_ks_pre')
 +
$kickstart_start
 +
$SNIPPET('pre_install_network_config')
 +
# Enable installation monitoring
 +
$SNIPPET('pre_anamon')
 +
 +
%packages
 +
$SNIPPET('func_install_if_enabled')
 +
 +
%post
 +
$SNIPPET('log_ks_post')
 +
# Start yum configuration
 +
$yum_config_stanza
 +
# End yum configuration
 +
$SNIPPET('post_install_kernel_options')
 +
$SNIPPET('post_install_network_config')
 +
$SNIPPET('func_register_if_enabled')
 +
$SNIPPET('download_config_files')
 +
$SNIPPET('koan_environment')
 +
$SNIPPET('redhat_register')
 +
$SNIPPET('cobbler_register')
 +
# Enable post-install boot notification
 +
$SNIPPET('post_anamon')
 +
# Start final steps
 +
$kickstart_done
 +
# End final steps
 +
[root@test-plccg ~]#
 +
 +
 +
 +
[root@test-plccg ~]# cd /var/lib/cobbler/kickstarts/
 +
 +
[root@test-plccg kickstarts]# cp sample.ks Compute.ks
 +
 +
[root@test-plccg kickstarts]# vi Compute.ks
 +
#platform=x86, AMD64, or Intel EM64T
 +
# System authorization information
 +
auth  --useshadow  --enablemd5
 +
# System bootloader configuration
 +
bootloader --location=mbr
 +
# Partition clearing information
 +
clearpart --all --initlabel
 +
# Use text mode install
 +
text
 +
# Firewall configuration
 +
firewall --disabled
 +
# Run the Setup Agent on first boot
 +
firstboot --disable
 +
# System keyboard
 +
keyboard us
 +
# System language
 +
lang en_US
 +
# Use network installation
 +
url --url=$tree
 +
# If any cobbler repo definitions were referenced in the kickstart profile, include them here.
 +
$yum_repo_stanza
 +
# Network information
 +
$SNIPPET('network_config')
 +
# Reboot after installation
 +
reboot
 +
 +
#Root password
 +
rootpw --iscrypted $default_password_crypted
 +
# SELinux configuration
 +
selinux --disabled
 +
# Do not configure the X Window System
 +
skipx
 +
# System timezone
 +
timezone  Asia/Riyadh
 +
# Install OS instead of upgrade
 +
install
 +
# Clear the Master Boot Record
 +
zerombr
 +
# Allow anaconda to partition the system as needed
 +
autopart
 +
 +
 +
%pre
 +
$SNIPPET('log_ks_pre')
 +
$kickstart_start
 +
$SNIPPET('pre_install_network_config')
 +
# Enable installation monitoring
 +
$SNIPPET('pre_anamon')
 +
 +
%packages
 +
@base
 +
$SNIPPET('func_install_if_enabled')
 +
 +
%post
 +
$SNIPPET('log_ks_post')
 +
# Start yum configuration
 +
$yum_config_stanza
 +
# End yum configuration
 +
$SNIPPET('post_install_kernel_options')
 +
$SNIPPET('post_install_network_config')
 +
$SNIPPET('func_register_if_enabled')
 +
$SNIPPET('download_config_files')
 +
$SNIPPET('koan_environment')
 +
$SNIPPET('redhat_register')
 +
$SNIPPET('cobbler_register')
 +
# Enable post-install boot notification
 +
$SNIPPET('post_anamon')
 +
# Start final steps
 +
$kickstart_done
 +
# End final steps
 +
[root@test-plccg kickstarts]#
 +
 +
 +
[root@test-plccg kickstarts]# cobbler profile edit --name=ComputeNodes --kickstart=/var/lib/cobbler/kickstarts/Compute.ks
 +
[root@test-plccg kickstarts]#
 +
 +
 +
Verify the change:-
 +
 +
[root@test-plccg kickstarts]# cobbler profile report --name=ComputeNodes | grep kickstart
 +
kickstart            : /var/lib/cobbler/kickstarts/Compute.ks
 +
[root@test-plccg kickstarts]# 
 +
 +
 +
Now define/ add compute nodes:-
 +
 +
[root@test-plccg ~]# cobbler system add --name=compute1 --profile=ComputeNodes --mac=00:1D:09:6A:27:8F
 +
 +
[root@test-plccg ~]# cobbler system add --name=compute2 --profile=ComputeNodes --mac=00:1D:09:6B:06:7F
 +
[root@test-plccg ~]#
 +
 +
 +
------------- Note ----------
 +
In case you try to make a duplicate entry:-
 +
 +
[root@test-plccg ~]# cobbler system add --name=compute1 --profile=ComputeNodes --mac=00:1D:09:6B:06:7F
 +
An object already exists with that name.  Try 'edit'?
 +
 +
------------------------------
 +
 +
[root@test-plccg ~]# cobbler system list
 +
compute1
 +
compute2
 +
[root@test-plccg ~]#
 +
 +
 +
You can check report of the nodes now. I am only interested in few parameters.
 +
 +
[root@test-plccg ~]# cobbler system report | egrep "system|profile|power type|interface|mac"
 +
system                : compute1
 +
profile              : ComputeNodes
 +
power type            : ipmitool
 +
interface        : eth0
 +
  mac address    : 00:1D:09:6A:27:8F
 +
system                : compute2
 +
profile              : ComputeNodes
 +
power type            : ipmitool
 +
interface        : eth0
 +
  mac address    : 00:1D:09:6B:06:7F
 +
[root@test-plccg ~]#                     
 +
 +
I need to change the interface from eth0 to eth1.
 +
 +
[root@test-plccg ~]# cobbler system edit --name=compute1 --interface=eth1  --power-type=ipmitool --power-user=root --power-pass=calvin
 +
 +
[root@test-plccg ~]# cobbler system edit --name=compute2 --interface=eth1  --power-type=ipmitool --power-user=root --power-pass=calvin
 +
[root@test-plccg ~]# 
 +
 +
 +
[root@test-plccg ~]# cobbler system report | egrep "system|profile|power type|interface|mac"
 +
system                : compute1
 +
profile              : ComputeNodes
 +
power type            : ipmitool
 +
interface        : eth0
 +
  mac address    : 00:1D:09:6A:27:8F
 +
system                : compute2
 +
profile              : ComputeNodes
 +
power type            : ipmitool
 +
interface        : eth0
 +
  mac address    : 00:1D:09:6B:06:7F
 +
[root@test-plccg ~]#
 +
 +
 +
[root@test-plccg ~]# cat /tftpboot/pxelinux.cfg/01-00-1d-09-6a-27-8f
 +
default linux
 +
prompt 0
 +
timeout 1
 +
label linux
 +
        kernel /images/Centos5.4-x86_64/vmlinuz
 +
        ipappend 2
 +
        append initrd=/images/Centos5.4-x86_64/initrd.img ksdevice=bootif lang=  kssendmac text  ks=http://192.168.1.200/cblr/svc/op/ks/system/compute1
 +
 +
[root@test-plccg ~]#
 +
 +
 +
service cobblerd restart
 +
 +
[root@test-plccg ~]# service dhcpd restart
 +
Starting dhcpd:                                            [FAILED]
 +
[root@test-plccg ~]# 
 +
 +
 +
Wasted all my day. This is the fix:-
 +
 +
[root@test-plccg ~]# cobbler sync
 +
Shutting down dhcpd:                                      [  OK  ]
 +
Starting dhcpd:                                            [  OK  ]
 +
 +
 +
[root@test-plccg ~]# cat /etc/dhcpd.conf
 +
# ******************************************************************
 +
# Cobbler managed dhcpd.conf file
 +
# generated from cobbler dhcp.conf template (Tue Feb  2 11:47:35 2010)
 +
# Do NOT make changes to /etc/dhcpd.conf. Instead, make your changes
 +
# in /etc/cobbler/dhcp.template, as /etc/dhcpd.conf will be
 +
# overwritten.
 +
# ******************************************************************
 +
 +
ddns-update-style interim;
 +
 +
allow booting;
 +
allow bootp;
 +
 +
ignore client-updates;
 +
set vendorclass = option vendor-class-identifier;
 +
 +
subnet 192.168.1.0 netmask 255.255.255.0 {
 +
    option routers            192.168.1.200;
 +
    option domain-name-servers 192.168.1.200;
 +
    option subnet-mask        255.255.255.0;
 +
    range dynamic-bootp        192.168.1.1 192.168.1.10;
 +
    filename                  "/pxelinux.0";
 +
    default-lease-time        21600;
 +
    max-lease-time            43200;
 +
    next-server                192.168.1.200;
 +
}
 +
 +
# group for Cobbler DHCP tag: default
 +
group {
 +
    host generic1 {
 +
        hardware ethernet 00:1D:09:6B:06:91;
 +
        filename "/pxelinux.0";
 +
        next-server 192.168.1.200;
 +
    }
 +
}
 +
 +
[root@test-plccg ~]#

Revision as of 12:44, 7 February 2010

Cobbler Howto:-

======

help from:=

http://www.openskill.info/blog.php?ID=16 http://magazine.redhat.com/2007/08/10/cobbler-how-to-set-up-a-network-boot-server-in-10-minutes/ http://www.enterprisenetworkingplanet.com/netsysm/article.php/3773596 http://www.kanarip.com/courses/Deploying_Linux_Using_Cobbler/


Centos 5.4 x86_64

yum -y update


Using the link: https://fedorahosted.org/cobbler/wiki/DownloadInstructions

Setup Cobbler Repositories:-


[root@test-plccg ~]# vi /etc/yum.repos.d/CentOS-Base.repo . . . . . . [cobbler-stable] name=Cobbler-Stable baseurl=http://download.fedora.redhat.com/pub/epel/5/x86_64

[cobbler-testing] name=Cobbler-Testing baseurl=http://download.fedora.redhat.com/pub/epel/testing/5/x86_64 . . . . . . [root@test-plccg ~]#


Install cobbler:-

[root@test-plccg ~]# yum -y install cobbler koan

[root@test-plccg cdimages]# ls CentOS-5.3-i386.DVD.iso CentOS-5.4-x86_64 CentOS-5.4-x86_64-bin-DVD.iso [root@test-plccg cdimages]#

service httpd restart

http://10.1.112.121/cobbler



Import repository:-


cobbler import --mirror=/data/cdimages/CentOS-5.4-x86_64 --name=Centos5.4-x86_64


[root@test-plccg cdimages]# cobbler import --mirror=/data/cdimages/CentOS-5.4-x86_64 --name=Centos5.4-x86_64 . . . 

. . .

repodata/primary.sqlite.bz2 

    2141520 100%    3.07MB/s    0:00:00 (xfer#3468, to-check=2/3478)

repodata/primary.xml.gz 

    1189512 100%    1.67MB/s    0:00:00 (xfer#3469, to-check=1/3478)

repodata/repomd.xml 

       2142 100%    3.09kB/s    0:00:00 (xfer#3470, to-check=0/3478)

sent 4333936317 bytes received 76408 bytes 39580024.89 bytes/sec total size is 4333090152 speedup is 1.00

(adding distros)

- found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/xen - creating new distro: Centos5.4-xen-x86_64 - creating new profile: Centos5.4-xen-x86_64 - found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/pxeboot - creating new distro: Centos5.4-x86_64 - creating new profile: Centos5.4-x86_64 - creating new profile: rescue-Centos5.4-x86_64

(associating repos)

- traversing distro Centos5.4-xen-x86_64 - found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/xen - descent into /var/www/cobbler/ks_mirror/Centos5.4-x86_64 - processing repo at : /var/www/cobbler/ks_mirror/Centos5.4-x86_64 - need to process repo/comps: /var/www/cobbler/ks_mirror/Centos5.4-x86_64 - looking for /var/www/cobbler/ks_mirror/Centos5.4-x86_64/repodata/*comps*.xml - createrepo -c cache --groupfile /var/www/cobbler/ks_mirror/Centos5.4-x86_64/repodata/comps.xml /var/www/cobbler/ks_mirror/Centos5.4-x86_64 3309/3309 - CentOS/sblim-cim-client-javadoc-1-35.el5.x86_64.rpm rpm64.rpm Saving Primary metadata Saving file lists metadata Saving other metadata - traversing distro Centos5.4-x86_64 - found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/pxeboot - descent into /var/www/cobbler/ks_mirror/Centos5.4-x86_64 - processing repo at : /var/www/cobbler/ks_mirror/Centos5.4-x86_64 - need to process repo/comps: /var/www/cobbler/ks_mirror/Centos5.4-x86_64 - looking for /var/www/cobbler/ks_mirror/Centos5.4-x86_64/repodata/*comps*.xml - createrepo -c cache --groupfile /var/www/cobbler/ks_mirror/Centos5.4-x86_64/repodata/comps.xml /var/www/cobbler/ks_mirror/Centos5.4-x86_64 3309/3309 - CentOS/sblim-cim-client-javadoc-1-35.el5.x86_64.rpm rpm64.rpm Saving Primary metadata Saving file lists metadata Saving other metadata

(associating kickstarts)

- found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/pxeboot - found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/xen - found content (breed=redhat) at /var/www/cobbler/ks_mirror/Centos5.4-x86_64/images/pxeboot [root@test-plccg cdimages]#


Install the following using yum :-

yum -y install reposync yum-utils cman


Time for some configurations:-

vi /etc/cobbler/settings


(some settings)


service cobblerd restart

chkconfig --level 35 cobblerd on

cobbler check # important


End of day 1.

==============================================

Day 2:

Cobbler howto-2

=

[root@test-plccg ~]# cobbler check The following potential problems were detected:

  1. 0: service dhcpd is not running
  2. 1: since iptables may be running, ensure 69, 80, and 25151 are unblocked
  3. 2: yum-utils need to be at least version 1.1.17 for reposync -l, current version is 1.1.16
  4. 3: The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to 'cobbler' and should be changed

[root@test-plccg ~]#


[root@test-plccg ~]# cobbler list distro Centos5.4-x86_64 

  profile Centos5.4-x86_64
  profile rescue-Centos5.4-x86_64

distro Centos5.4-xen-x86_64 

  profile Centos5.4-xen-x86_64

[root@test-plccg ~]#


[root@test-plccg ~]# cobbler distro list Centos5.4-x86_64 Centos5.4-xen-x86_64 [root@test-plccg ~]#


[root@test-plccg ~]# cobbler profile list Centos5.4-x86_64 Centos5.4-xen-x86_64 rescue-Centos5.4-x86_64 [root@test-plccg ~]#


No systems are registered with cobbler at the moment:-

[root@test-plccg ~]# cobbler system list [root@test-plccg ~]#


Lets create a profile for compute-nodes:-

[root@test-plccg ~]# cobbler profile copy --name=Centos5.4-x86_64 --newname=ComputeNodes


[root@test-plccg ~]# cobbler profile list Centos5.4-x86_64 Centos5.4-xen-x86_64 ComputeNodes # <------------ Newly added profile! rescue-Centos5.4-x86_64 [root@test-plccg ~]#


[root@test-plccg ~]# cobbler profile report --name=ComputeNodes profile  : ComputeNodes distro  : Centos5.4-x86_64 comment  : created  : Tue Feb 2 09:06:50 2010 dhcp tag  : default enable menu  : True kernel options  : {} kickstart  : /var/lib/cobbler/kickstarts/default.ks # < ------------ Notice this default Kickstart. ks metadata  : {} mgmt classes  : [] modified  : Tue Feb 2 09:06:50 2010 name servers  : [] name servers search  : [] owners  : ['admin'] post kernel options  : {} redhat mgmt key  : <<inherit>> redhat mgmt server  : <<inherit>> repos  : [] server  : <<inherit>> template_files  : {} virt bridge  : xenbr0 virt cpus  : 1 virt file size  : 5 virt path  : virt ram  : 512 virt type  : qemu

[root@test-plccg ~]#


[root@test-plccg ~]# cat /var/lib/cobbler/kickstarts/default.ks

  1. this file intentionally left blank
  2. admins: edit it as you like, or leave it blank for non-interactive install


[root@test-plccg ~]# cat /var/lib/cobbler/kickstarts/sample.ks

  1. platform=x86, AMD64, or Intel EM64T
  2. System authorization information

auth --useshadow --enablemd5

  1. System bootloader configuration

bootloader --location=mbr

  1. Partition clearing information

clearpart --all --initlabel

  1. Use text mode install

text

  1. Firewall configuration

firewall --enabled

  1. Run the Setup Agent on first boot

firstboot --disable

  1. System keyboard

keyboard us

  1. System language

lang en_US

  1. Use network installation

url --url=$tree

  1. If any cobbler repo definitions were referenced in the kickstart profile, include them here.

$yum_repo_stanza

  1. Network information

$SNIPPET('network_config')

  1. Reboot after installation

reboot

  1. Root password

rootpw --iscrypted $default_password_crypted

  1. SELinux configuration

selinux --disabled

  1. Do not configure the X Window System

skipx

  1. System timezone

timezone America/New_York

  1. Install OS instead of upgrade

install

  1. Clear the Master Boot Record

zerombr

  1. Allow anaconda to partition the system as needed

autopart


%pre $SNIPPET('log_ks_pre') $kickstart_start $SNIPPET('pre_install_network_config')

  1. Enable installation monitoring

$SNIPPET('pre_anamon')

%packages $SNIPPET('func_install_if_enabled')

%post $SNIPPET('log_ks_post')

  1. Start yum configuration

$yum_config_stanza

  1. End yum configuration

$SNIPPET('post_install_kernel_options') $SNIPPET('post_install_network_config') $SNIPPET('func_register_if_enabled') $SNIPPET('download_config_files') $SNIPPET('koan_environment') $SNIPPET('redhat_register') $SNIPPET('cobbler_register')

  1. Enable post-install boot notification

$SNIPPET('post_anamon')

  1. Start final steps

$kickstart_done

  1. End final steps

[root@test-plccg ~]#


[root@test-plccg ~]# cd /var/lib/cobbler/kickstarts/

[root@test-plccg kickstarts]# cp sample.ks Compute.ks

[root@test-plccg kickstarts]# vi Compute.ks

  1. platform=x86, AMD64, or Intel EM64T
  2. System authorization information

auth --useshadow --enablemd5

  1. System bootloader configuration

bootloader --location=mbr

  1. Partition clearing information

clearpart --all --initlabel

  1. Use text mode install

text

  1. Firewall configuration

firewall --disabled

  1. Run the Setup Agent on first boot

firstboot --disable

  1. System keyboard

keyboard us

  1. System language

lang en_US

  1. Use network installation

url --url=$tree

  1. If any cobbler repo definitions were referenced in the kickstart profile, include them here.

$yum_repo_stanza

  1. Network information

$SNIPPET('network_config')

  1. Reboot after installation

reboot

  1. Root password

rootpw --iscrypted $default_password_crypted

  1. SELinux configuration

selinux --disabled

  1. Do not configure the X Window System

skipx

  1. System timezone

timezone Asia/Riyadh

  1. Install OS instead of upgrade

install

  1. Clear the Master Boot Record

zerombr

  1. Allow anaconda to partition the system as needed

autopart


%pre $SNIPPET('log_ks_pre') $kickstart_start $SNIPPET('pre_install_network_config')

  1. Enable installation monitoring

$SNIPPET('pre_anamon')

%packages @base $SNIPPET('func_install_if_enabled')

%post $SNIPPET('log_ks_post')

  1. Start yum configuration

$yum_config_stanza

  1. End yum configuration

$SNIPPET('post_install_kernel_options') $SNIPPET('post_install_network_config') $SNIPPET('func_register_if_enabled') $SNIPPET('download_config_files') $SNIPPET('koan_environment') $SNIPPET('redhat_register') $SNIPPET('cobbler_register')

  1. Enable post-install boot notification

$SNIPPET('post_anamon')

  1. Start final steps

$kickstart_done

  1. End final steps

[root@test-plccg kickstarts]#


[root@test-plccg kickstarts]# cobbler profile edit --name=ComputeNodes --kickstart=/var/lib/cobbler/kickstarts/Compute.ks [root@test-plccg kickstarts]#


Verify the change:-

[root@test-plccg kickstarts]# cobbler profile report --name=ComputeNodes | grep kickstart kickstart  : /var/lib/cobbler/kickstarts/Compute.ks [root@test-plccg kickstarts]#


Now define/ add compute nodes:-

[root@test-plccg ~]# cobbler system add --name=compute1 --profile=ComputeNodes --mac=00:1D:09:6A:27:8F

[root@test-plccg ~]# cobbler system add --name=compute2 --profile=ComputeNodes --mac=00:1D:09:6B:06:7F [root@test-plccg ~]#


Note ----------

In case you try to make a duplicate entry:-

[root@test-plccg ~]# cobbler system add --name=compute1 --profile=ComputeNodes --mac=00:1D:09:6B:06:7F An object already exists with that name. Try 'edit'?

[root@test-plccg ~]# cobbler system list compute1 compute2 [root@test-plccg ~]#


You can check report of the nodes now. I am only interested in few parameters.

[root@test-plccg ~]# cobbler system report | egrep "system|profile|power type|interface|mac" system  : compute1 profile  : ComputeNodes power type  : ipmitool interface  : eth0 

 mac address    : 00:1D:09:6A:27:8F

system  : compute2 profile  : ComputeNodes power type  : ipmitool interface  : eth0 

 mac address    : 00:1D:09:6B:06:7F

[root@test-plccg ~]#

I need to change the interface from eth0 to eth1.

[root@test-plccg ~]# cobbler system edit --name=compute1 --interface=eth1 --power-type=ipmitool --power-user=root --power-pass=calvin

[root@test-plccg ~]# cobbler system edit --name=compute2 --interface=eth1 --power-type=ipmitool --power-user=root --power-pass=calvin [root@test-plccg ~]#


[root@test-plccg ~]# cobbler system report | egrep "system|profile|power type|interface|mac" system  : compute1 profile  : ComputeNodes power type  : ipmitool interface  : eth0 

 mac address    : 00:1D:09:6A:27:8F

system  : compute2 profile  : ComputeNodes power type  : ipmitool interface  : eth0 

 mac address    : 00:1D:09:6B:06:7F

[root@test-plccg ~]#


[root@test-plccg ~]# cat /tftpboot/pxelinux.cfg/01-00-1d-09-6a-27-8f default linux prompt 0 timeout 1 label linux 

       kernel /images/Centos5.4-x86_64/vmlinuz
       ipappend 2
       append initrd=/images/Centos5.4-x86_64/initrd.img ksdevice=bootif lang=  kssendmac text  ks=http://192.168.1.200/cblr/svc/op/ks/system/compute1

[root@test-plccg ~]#


service cobblerd restart

[root@test-plccg ~]# service dhcpd restart Starting dhcpd: [FAILED] [root@test-plccg ~]#


Wasted all my day. This is the fix:-

[root@test-plccg ~]# cobbler sync Shutting down dhcpd: [ OK ] Starting dhcpd: [ OK ]


[root@test-plccg ~]# cat /etc/dhcpd.conf

  1. ******************************************************************
  2. Cobbler managed dhcpd.conf file
  3. generated from cobbler dhcp.conf template (Tue Feb 2 11:47:35 2010)
  4. Do NOT make changes to /etc/dhcpd.conf. Instead, make your changes
  5. in /etc/cobbler/dhcp.template, as /etc/dhcpd.conf will be
  6. overwritten.
  7. ******************************************************************

ddns-update-style interim;

allow booting; allow bootp;

ignore client-updates; set vendorclass = option vendor-class-identifier;

subnet 192.168.1.0 netmask 255.255.255.0 { 

    option routers             192.168.1.200;
    option domain-name-servers 192.168.1.200;
    option subnet-mask         255.255.255.0;
    range dynamic-bootp        192.168.1.1 192.168.1.10;
    filename                   "/pxelinux.0";
    default-lease-time         21600;
    max-lease-time             43200;
    next-server                192.168.1.200;

}

  1. group for Cobbler DHCP tag: default

group { 

   host generic1 {
       hardware ethernet 00:1D:09:6B:06:91;
       filename "/pxelinux.0";
       next-server 192.168.1.200;
   }

}

[root@test-plccg ~]#

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