Automagisch installeren van OES en SLES. Frank Korpershoek Jeroen Bannink

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1 Automagisch installeren van OES en SLES Frank Korpershoek Jeroen Bannink

2 Agenda Waarom deze methode Installatie Server PXE Booting AutoYast scripts Subscription Management Server Slide: 2

3 Handmatig vs. Automatisch Handmatig CD's wisselen Veel input onderweg Automatisch Aan het begin van het proces de juiste gegevens verzamelen Slide: 3

4 Onderdelen Installatie Server PXE boot server AutoYast scripts Subscription Management Server Slide: 4

5 Installatie Server Voordelen Geen CD's meer nodig Snelheid Toevoegen pakketten eenvoudig Remote installaties Slide: 5

6 Installatie Server Installatie Diskruimte Installatie vanuit YaST (#yast instserver) sourcetype: HTTP/FTP/NFS directory, alias webserver alias sources toevoegen Source name (bv: sles10sp3-64) Source bestanden kopieeren Webbrowser test Slide: 6

7 Installatie Server Verdere configuratie SLP apache extra sources toevoegen Slide: 7

8 Installatie 'booten' Remaster van installatie CD /boot/i386/loader : append initrd=initrd splash=silent showopts install= sles10-sp3/cd1 autoyast= PXE Booten Geen CD's meer nodig PXE Boot proces Slide: 8

9 PXE Boot Server Configuratie TFTP Server installatie YaST Bootfiles SLES install DVD: pxelinux.0 linux initrd pxelinux.cfg/message pxelinux.cfg/default Slide: 9

10 PXE: default default harddisk implicit 0 display pxelinux.cfg/message prompt 1 timeout 200 # hard disk label harddisk localboot 0x80 # install sles10 sp3 32 bits label sles10sp3-32 kernel linux append install= showopts # install sles 10 sp3 32 bits with autoyast label sles10-autoyast kernel linux append showopts Slide: 10

11 PXE: message harddisk - Boot from Harddisk (this is default) sles10sp Manual Installation of SLES10 SP3 sles10-autoyast - Installation of SLES 10 SP3 with autoyast Slide: 11

12 PXE informatie vanuit dhcp /etc/dhcpd.conf option domain-name "ix.org"; option domain-name-servers ; option routers ; ddns-update-style none; default-lease-time 14400; subnet netmask { range ; default-lease-time 14400; max-lease-time ; next-server ; filename "pxelinux.0"; } Slide: 12

13 PXE Boot Slide: 13

14 PXE Alternatieven Graphical PXE Slide: 14

15 Remote Installatie Kernel bootopties # install sles10 sp3 32 bits label sles10sp3-32 kernel linux append initrd=initrd install= hostip= /24 nameserver= gateway= usessh=1 sshpassword=wortel showopts Slide: 15

16 Remote Installatie Slide: 16

17 AutoYaST Wat is Autoyast Antwoord bestand Definieert» Systeeminstellingen» Pakketkeuzes Automatisch uitrollen Slide: 17

18 AutoYaST autoyast.xml <?xml version="1.0"?> <!DOCTYPE profile> <profile xmlns=" xmlns:config=" <add-on> <add_on_products config:type="list"> <listentry> <media_url> <product>open_enterprise_server_sp2</product> <product_dir>/</product_dir> </listentry> </add_on_products> </add-on> <bootloader> <device_map config:type="list"> <device_map_entry> <firmware>hd0</firmware> <linux>/dev/sda</linux> </device_map_entry> </device_map> <global> Slide: 18

19 AutoYaST partioning <partitioning config:type="list"> <drive> <device>/dev/sda</device> <partitions config:type="list"> <partition> <create config:type="boolean">true</create> <filesystem config:type="symbol">swap</filesystem> <format config:type="boolean">true</format> <mount>swap</mount> <mountby config:type="symbol">device</mountby> <partition_id config:type="integer">130</partition_id> <partition_nr config:type="integer">1</partition_nr> <partition_type>primary</partition_type> <size> </size> </partition> <partition> <create config:type="boolean">true</create> <filesystem config:type="symbol">ext3</filesystem> <format config:type="boolean">true</format> <mount>/var/log</mount> <mountby config:type="symbol">device</mountby> <partition_id config:type="integer">131</partition_id> <partition_nr config:type="integer">2</partition_nr> <partition_type>primary</partition_type> <size> </size> </partition> Slide: 19 <partition> <create config:type="boolean">true</create> <filesystem config:type="symbol">ext3</filesystem> <format config:type="boolean">true</format> <mount>/</mount> <mountby config:type="symbol">device</mountby> <partition_id config:type="integer">131</partition_id> <partition_nr config:type="integer">3</partition_nr> <partition_type>primary</partition_type> <size> </size> </partition> </partitions> <use>all</use> </drive> </partitioning>

20 AutoYaST creëeren Hoe kom je aan een antwoord bestand yast autoyast op de command-line Inlezen huidige systeem Einde installatie van een server Slide: 20

21 AutoYaST yast autoyast Slide: 21

22 AutoYaST scan system Slide: 22

23 AutoYaST ask ASK <ask-list config:type="list"> <ask> <path>networking,dns,hostname</path> <question>enter Hostname (server name)</question> <stage>initial</stage> <default>enter your hostname here</default> </ask> </ask-list> Slide: 23

24 AutoYaST ask <networking>... <dns>.. <hostname>.. </networking> <ask-list config:type="list"> <ask> <path>networking,dns,hostname</path> <question>enter Hostname (server name)</question> <stage>initial</stage> <default>enter your hostname here</default> </ask> </ask-list> Slide: 24

25 AutoYaST ask hostnaam IP-adres Wachtwoorden <ask> <path>networking,interfaces,0,ipaddr</path> <title>password <path>networking,dns,hostname</path> FOR THE root USER</title> <question>enter <path>user,0,user_password</path> the primary Hostname IP (server Address:</question> name)</question> <stage>initial</stage> <question>enter the root password</question> <default> </default> <stage>initial</stage> <default>enter your hostname here</default> </ask> <password config:type="boolean">false</password>! NB encrypted <encrypted config:type= boolean >true</encrypted> <encrypted config:type= boolean >false</encrypted> Slide: 25

26 AutoYaST yast autoyast Nadelen van deze methode Heel veel configuratiewerk Foutgevoelig Voordelen van deze methode Overzichtelijk Slide: 26

27 AutoYaST oes-componenten Veel extra configuratie-werk Gebruik een gegenereerd XML bestand Clone this System for autoyast Bewerk dit bestand, wijzig namen/adressen/context Slide: 27

28 AutoYaST scripts Pre-Install Scripts Postpartitioning Scripts (Alleen OpenSuse 11.2) Chroot scripts Post-Install Scripts Init Scripts Slide: 28

29 AutoYaST scripts <scripts> <post-scripts config:type="list"> <script> <filename>register.sh</filename> <interpreter>shell</interpreter> <source> <![CDATA[ #!/bin/bash wget smt.ix.org/smt.sh -O /root/smt.sh yes sh /root/smt.sh --host smt.ix.org --regcert /usr/bin/suse_register /usr/bin/rug up --patch -y if [ -n "`ip link grep 'link/ether 00:0c:29'`" ]; then echo vmware wget -O /root/vmwaretools.rpm rpm -Uvh /root/vmwaretools.rpm /usr/bin/vmware-config-tools.pl --compile --default else echo default fi exit ]]> </source> </script> </post-scripts> </scripts> Slide: 29

30 AutoYaST know it all Slide: 30

31 SMT Server Subscription Management Tool Voordelen NCC Mirror Client registratie >> Sessie NC023 Subscription Management Tool 14:30-15:30 Slide: 31

32 Vragen en antwoorden Slide: 32