Colocando Nós antigos na Spgrid

Na SPRace

  • Precisamos do dhcp funcionando e configurado. O
    /etc/dhcpd.conf
    está com o MAC ADDRESS do cliente
ddns-update-style none;
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 PXE.discovery-control      code 6 = unsigned integer 8;
option PXE.discovery-mcast-addr   code 7 = ip-address;
class "pxeclients" {
  match if substring (option vendor-class-identifier, 0, 9) =
         "PXEClient";
  option PXE.mtftp-ip 0.0.0.0;
}

subnet 200.136.80.0 netmask 255.255.255.0
   {
   }
subnet 192.168.1.0 netmask 255.255.255.0 {
  deny unknown-clients;
  min-lease-time 300;
  default-lease-time 1800;
  max-lease-time 1800;
  use-host-decl-names on;
  option subnet-mask 255.255.255.0;
  option routers 192.168.1.200;
host node24
{
        hardware ethernet 00:30:48:53:EA:91;
        fixed-address node24;
        filename "/tftpboot/pxelinux.0";
}
        }
Agora iniciamos o dhcpd
[root@sprace:mdias]# /etc/init.d/dhcpd start
Starting dhcpd:                                            [  OK  ]
  • O NFS da sprace tem que estar ok, pois vamos exportar o diretório que contém os arquivos de configuração do kickstart (que é por sua vez
definido pelo /tftpboot/pxelinux.cfg/default) como veremos mais para frente.
[root@sprace:mdias]# cat /etc/exports
/export 192.168.1.0/24(rw,no_root_squash)
[root@sprace:mdias]# /etc/init.d/nfs start
Starting NFS services:                                     [  OK  ]
Starting NFS quotas:                                       [  OK  ]
Starting NFS daemon:                                       [  OK  ]
Starting NFS mountd:                                       [  OK  ]
[root@sprace:mdias]# service nfs status
rpc.mountd (pid 32435) is running...
nfsd (pid 32428 32427 32426 32425 32424 32423 32422 32421) is running...
rpc.rquotad (pid 32416) is running...
[root@sprace:mdias]# showmount -e
Export list for sprace.if.usp.br:
/export                 192.168.1.0/24
  • O tftpboot deve estar habilitado, usando a opção
    disable=no
    no arquivo de configuração do xinetd:
[root@sprace:mdias]# cat /etc/xinetd.d/tftp
# default: off
# description: The tftp server serves files using the trivial file transfer \
#       protocol.  The tftp protocol is often used to boot diskless \
#       workstations, download configuration files to network-aware printers, \
#       and to start the installation process for some operating systems.
service tftp
{
        disable                 = no
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = /tftpboot
        per_source              = 11
        cps                     = 100 2
}
[root@sprace:mdias]# cat /etc/xinetd.d/tftp
# default: off
# description: The tftp server serves files using the trivial file transfer \
#       protocol.  The tftp protocol is often used to boot diskless \
#       workstations, download configuration files to network-aware printers, \
#       and to start the installation process for some operating systems.
service tftp
{
        disable                 = no
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = /tftpboot
        per_source              = 11
        cps                     = 100 2
}
[root@sprace:mdias]# ls -la /tftpboot/pxelinux.cfg/
total 16
   4 drwxr-xr-x    2 root     root         4096 Aug  8  2003 ./
   4 drwxr-xr-x    4 root     root         4096 Jul 15  2003 ../
   4 -rw-r--r--    1 root     root          380 Nov  7 16:11 default
   4 -rw-r--r--    1 root     root          520 Nov  7 16:11 message.txt
[root@sprace:mdias]# cat /tftpboot/pxelinux.cfg/default
#SERIAL 1 19200

# Mensagem a ser apresentada
DISPLAY pxelinux.cfg/message.txt

# timeout de espera
TIMEOUT 100

# Sempre mostrar o prompt
PROMPT  1

# Default e' realizar o boot normal
DEFAULT boot

LABEL boot
    LOCALBOOT 0

LABEL linux
    kernel vmlinuz
    append ks=nfs:192.168.1.200:/export/tools/kickstart/linux.cfg
initrd=initrd.img devfs=nomount ksdevice=eth0
#console=ttyS1,19200
[root@sprace:mdias]# cat /tftpboot/pxelinux.cfg/message.txt
 Mensagem a ser apresentada no momento de boot

47                                              07
47               ITAUTEC CLUSTER                07
47               0741Boot Management0747                07
47                                              07
47   Press:                                     07
47      0741boot     0747 for normal boot               07
47      0741linux    0747 to install a new node         07
47                                              07

[root@sprace:mdias]# /etc/init.d/xinetd restart
Stopping xinetd:                                           [  OK  ]
Starting xinetd:                                           [  OK  ]

Observe que a linha
append
ks=nfs:192.168.1.200:/export/tools/kickstart/linux.cfg 
define onde fica o arquivo de configuração do kickstart ( no caso o linux.cfg). A opção ksdevice resolve o problema de termos duas interfaces de rede, o que faria ele interpelar por qual seria feita a importação dos arquivos de instalação.
  • Como o resto da instalação vai ser via nfs, exportado pela SPRAID, devemos ter o diretório
    /raid0/SL_308_i386/
    (isso é definido dentro do linux.cfg)
[root@spraid root]# showmount -e
Export list for spraid.if.usp.br:
/raid1 192.168.1.0/24
/raid0 192.168.1.0/24
[root@spraid mdias]# ls /raid0/SL_308_i386/
apt-rpm   errata    misc                RHupdates     SL
contrib   images    README              RPM-GPG-KEYs  SL.documentation
dosutils  isolinux  RELEASE-NOTES.html  sites         SL.releasenote
  • O arquivo de configuração do kickstart,
    /export/tools/kickstart/linux.cfg 
    manda a instalação ir para o
    /raid0/SL_308_i386
    , via nfs na Spraid

#kickstart file automatically generated by anaconda.

lang en_US.UTF-8
langsupport --default en_US.UTF-8 en_US.UTF-8 pt_BR.UTF-8
keyboard us-acentos
#mouse
mouse genericwheelps/2 --device psaux
#Reboot apos instalacao
#reboot
#Metodo de instalacao
install
text
#NFS ou CD ou FTP ou HTTP
nfs --server 192.168.1.100 --dir /raid0/SL_308_i386
#Configurando o X
#xconfig --card "ATI Radeon (generic)" --videoram 16384 --hsync 30-70 --vsync
50-160 --resolution 1024x768 --depth 24 --
defaultdesktop gnome
xconfig --resolution 1024x768 --depth 24 --defaultdesktop gnome
network --device eth0 --bootproto dhcp
#network --device eth1 --bootproto dhcp
rootpw --iscrypted $1$96lpAZKJ$RpfvtqR8nP9AHrScGgjQM.
firewall --disabled
authconfig --enableshadow --enablemd5
timezone America/Sao_Paulo
#System bootloader
bootloader --location=mbr
#Partition
zerombr yes
clearpart --all
part /boot --fstype ext3 --size 100 --asprimary
part / --fstype ext3 --size 10240 --asprimary
part swap --size 2048 --asprimary
part /var --fstype ext3 --size 2048
part /tmp --fstype ext3 --size  500
part /scratch --fstype ext3 --size 1 --grow

%packages
@ engineering-and-scientific
@ brazilian-support
@ admin-tools
@ portuguese-support
@ editors
@ system-tools
@ base-x
@ graphics
@ development-tools
@ misc-sl
@ gnome-desktop
@ dialup
@ apt-rpm
@ yum
@ openafs-client
@ server-cfg
pine
-octave
net-snmp-utils
SL_enable_serialconsole
anacron
firefox
-pvm
-units
kernel
grub
pcp
-samba-client
-blas
kernel-module-openafs-2.4.21-47.0.1.ELsmp
-lam
kernel-smp-unsupported
-lapack
kernel-smp

%post --nochroot


echo "Configurando chkconfig"
for f in sshd
{
chroot /mnt/sysimage chkconfig ${f} on
}

for f in cups hpoj pcmcia rhnsd sendmail yum
{
chroot /mnt/sysimage chkconfig --level 23456 ${f} off
}
observe que retiramos a opcao "reboot" , pois se a deixarmos habilitada ele entra em loop, ou seja reboota, entra no boot via pxe, instala o sistema operacional e por aí vai!

Nós

Em cada nó devemos configurar a Bios a aba BOOT-> BOOT DEVICE PRIORITY e colocar a interface de rede ( no caso IBAGE Slot 320v). Isso fará o nó bootar via PXE usando uma das interfaces de rede e pegar via DHCP seu endereço de rede e começar o processo de instalação.

Terminada a instalação devemos plugar de novo o terminal, dar enter (para rebootar o processo de instalação). Nisso, quando rebootar novamente, volte a configurar a BIOS para que o HD seja o primeiro dispositivo no Boot Device Priority.

Por ultimo colocamos em /tftpboot/pxelinux.cfg/default

DEFAULT boot
e substituimos a anterior. Assim caso algum problema no hd ( e nesse caso ele tentaria entrar no boot via rede) ele não tentaria instalar novamente.

Pós Instalação

Bom, com tudo instalado, primeiramente devemos remover as linhas em

/root/.ssh/known_hosts
relativo à estes nós. Feito isso devemos exportar a chave (tudo na mão):
[root@sprace:root]#  ssh node49 'mkdir .ssh; chmod 600 .ssh';scp authorized_keys node49:/root/.ssh/.
usando o
authorized_keys
de um nó qualquer.

O resto ficou por conta de um projeto de script

#!/bin/bash
RACK=3; RANK=0;
for ((i=39; i<55; i++))
 do
scp /home/mdias/ntp.conf 192.168.1.$i:/etc/.;
scp hosts 192.168.1.$i:/etc/hosts;
scp /home/mdias/nsswitch.conf  192.168.1.$i:/etc/.;
scp condor 192.168.1.$i:/etc/init.d/.;
scp   ganglia-monitor-core-gmond-2.5.4-8.i386.rpm 192.168.1.$i:/root/.;
scp gmond_fase2.conf 192.168.1.$i:/etc/gmond.conf;
ssh  192.168.1.$i 'mv /etc/resolv.conf /etc/resolv.conf.old;echo domain grid|cat>>/etc/resolv.conf; echo nameserver 192.168.1.150| cat >>/etc/
resolv.conf; echo nameserver 143.107.128.17| cat>>/etc/resolv.conf; echo nameserver 200.136.80.4| cat >>/etc/resolv.conf;mv /etc/sysconfig/net
work /etc/sysconfig/network.old;UNAME=`uname -n`; echo NETWORKING=yes| cat>>/etc/sysconfig/network; echo HOSTNAME=${UNAME}| cat >>/etc/sysconfig/network; echo GATEWAY=192.168.1.150| cat>>/etc/sysconfig/network; echo NISDOMAIN=grid|cat>>/etc/sysconfig/network;service gpm stop; chkconfig gpm off; chkconfig sendmail on;echoBROADCAST=192.168.1.255|cat>>/etc/sysconfig/network-scripts/ifcfg-eth0;echo IPADDR=192.168.1.'$i'|cat>>/etc/sysconfig/network-scripts/ifcfg-eth0 ;echo
NETMASK=255.255.255.0|cat>>/etc/sysconfig/network-scripts/ifcfg-eth0; echo
NETWORK=192.168.1.0| cat >> /etc/sysconfig/network-scripts/ifcfg-eth0;mv
/etc/sysconfig/network-scripts/ifcfg-eth0/etc/sysconfig/network-scripts/ifcfg-eth0.bak;
cat /etc/sysconfig/network-scripts/ifcfg-eth0.bak| sed -e "/BOOTPROTO=dhcp/d">
/etc/sysconfig/network-scripts/ifcfg-eth0; rm
/etc/sysconfig/network-scripts/ifcfg-eth0.bak;echo storage:/raid0 /raid0 nfs
rw,addr=192.168.1.100 0 0 |cat >>/etc/mtab; echo spg00:/home /home nfs
rw,addr=192.168.1.150 0 0 |cat >>/etc/mtab ; echo spg00:/OSG /OSG nfs
rw,addr=192.168.1.150 0 0 |cat >>/etc/mtab; echo "spg00:/home
/home           nfs     defaults        1 2"|cat >>/etc/fstab;echo "spg00:/OSG
/OSG            nfs     defaults        1 2"| cat>>/etc/fstab;echo
"storage:/raid0          /raid0          nfs     defaults 1 2"|cat
>>/etc/fstab;mkdir /OSG; mkdir /raid0;chkconfig ntpd on; service ntpd
start;echo ypserver 192.168.1.150|cat>>/etc/yp.conf;chkconfig ypbind on;
service ypbind start;mkdir /usr/local/opt;ln -s /OSG /usr/local/opt/OSG;ln -s /raid0/OSG /usr/local/share/OSG;mkdir
/scratch/condor;mkdir /scratch/OSG;chmod a+rw /scratch/OSG; chown condor:con
dor /scratch/condor; mount /OSG; ln -s
/usr/local/opt/OSG/condor/etc/condor_config /scratch/condor/condor_config; cd
/scratch/condor; touch co
ndor_config.local; mkdir execute log spool;chown condor:condor
condor_config.local execute log spool;ln -s /etc/init.d/condor
/etc/rc.d/rc0.d/
K99condor;ln -s /etc/init.d/condor /etc/rc.d/rc1.d/K99condor;ln -s
/etc/init.d/condor /etc/rc.d/rc2.d/S90condor;ln -s /etc/init.d/condor /etc/
rc.d/rc3.d/S90condor;ln -s /etc/init.d/condor /etc/rc.d/rc4.d/S90condor;ln -s
/etc/init.d/condor /etc/rc.d/rc5.d/S90condor;ln -s /etc/init.d/c
ondor /etc/rc.d/rc6.d/K99condor;echo location \"'$RACK','$RANK',0\"| cat >>/etc/gmond.conf;groupadd -g 104 ganglia;useradd -d /var/lib/ganglia
 -s /bin/false -g ganglia -u 107 ganglia ;rpm -ivh /root/ganglia-monitor-core-gmond-2.5.4-8.i386.rpm; rm /root/ganglia-monitor-core-gmond-2.5.
4-8.i386.rpm;reboot'
let "RANK += 1";
done;
Topic revision: r1 - 2006-12-11 - MarcoAndreFerreiraDias
 

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