CobblerTest

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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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