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NFSROOTによるディスクレスブート環境の構築の変更点

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{{category PCクラスタ}}
*NFSROOTによるディスクレスブート環境の構築
　Debian squeeze上にネットワーク経由のディスクレスブート用環境を構築する。
*master node側ファイル
**/etc/hosts
 127.0.0.1       localhost
 外向きNICのIP   hostname.hogehoge.com       hostname
 192.168.99.1    hostname.mycluster.home     hostname
 192.168.99.5    ssi5.mycluster.home         ssi5
 192.168.99.6    ssi6.mycluster.home         ssi6
 192.168.99.7    ssi7.mycluster.home         ssi7
 192.168.99.8    ssi8.mycluster.home         ssi8
 192.168.99.9    ssi5.mycluster.home         ssi9
 192.168.99.10   ssi6.mycluster.home         ssi10
 192.168.99.11   ssi7.mycluster.home         ssi11
 192.168.99.12   ssi8.mycluster.home         ssi12
 192.168.99.9    ssi9.mycluster.home         ssi9
 192.168.99.10   ssi10.mycluster.home         ssi10
 192.168.99.11   ssi11.mycluster.home         ssi11
 192.168.99.12   ssi12.mycluster.home         ssi12
**/etc/fstab
 proc          /proc               proc  defaults          0 0
 UUID=hogehoge /                   ext4  errors=remount-ro 0 1
 /boot         /srv/tftp/boot      none  bind              0 0
 LABEL=OCFS2   /work               ocfs2 _netdev           0 0
 /bin          /NFSROOT/slave/bin  none  bind              0 0
 /usr          /NFSROOT/slave/usr  none  bind              0 0
 /sbin         /NFSROOT/slave/sbin none  bind              0 0
 /home         /NFSROOT/slave/home none  bind              0 0
 /lib          /NFSROOT/slave/lib  none  bind              0 0
 /opt          /NFSROOT/slave/opt  none  bind              0 0
 /root         /NFSROOT/slave/root none  bind              0 0
**/etc/initramfs-tools/initramfs.conf
 MODULES=netboot
 BUSYBOX=y
 KEYMAP=n
 COMPRESS=gzip
 BOOT=nfs
 DEVICE=
 NFSROOT=auto
**/srv/tftp/pxelinux.cfg/default
 DEFAULT wheezy
 LABEL wheezy
     kernel boot/vmlinuz-3.1.0-1-amd64
     append initrd=boot/initrd.img-3.1.0-1-slave ip=dhcp root=/dev/nfs nfsroot=192.168.99.1:/NFSROOT/slave rw
**/etc/default/atftpd
 USE_INETD=false
 OPTIONS="--daemon --port 69 --tftpd-timeout 300 --retry-timeout 5 --mcast-port 1758 --mcast-addr 192.168.99.0-255 --mcast-ttl 1 --maxthread 100 --verbose=5 /srv/tftp"
**/etc/ntp.conf
 driftfile /var/lib/ntp/ntp.drift
 statistics loopstats peerstats clockstats
 filegen loopstats file loopstats type day enable
 filegen peerstats file peerstats type day enable
 filegen clockstats file clockstats type day enable
 server ntp1.jst.mfeed.ad.jp iburst
 server ntp2.jst.mfeed.ad.jp iburst
 server ntp3.jst.mfeed.ad.jp iburst
 server ntp.ring.gr.jp iburst
 restrict -4 default kod notrap nomodify nopeer noquery
 restrict -6 default kod notrap nomodify nopeer noquery
 restrict 127.0.0.1
 restrict ::1
**/etc/default/isc-dhcp-server
 INTERFACES="bond0"
**/etc/dhcp/dhcpd.conf
 option dhcp-max-message-size 2048;
 use-host-decl-names on;
 update-static-leases on;
 allow booting;
 allow bootp;
 ddns-update-style none;
 log-facility local7;
 subnet 192.168.99.0 netmask 255.255.255.0 {
     option routers 192.168.99.1;
     option subnet-mask 255.255.255.0;
     option broadcast-address 192.168.99.255;
     option domain-name "mycluster.home";
     option domain-name-servers DNSサーバIP1, DNSサーバIP2;
     option ntp-servers ntp1.jst.mfeed.ad.jp, ntp2.jst.mfeed.ad.jp, ntp3.jst.mfeed.ad.jp;
     range 192.168.99.5 192.168.99.254;
     range 192.168.99.5 192.168.99.250;
     default-lease-time 600;
     max-lease-time 7200;
     option nis-domain "blackthunder.nis";
     option nis-servers 192.168.99.254;
     filename "/srv/tftp/pxelinux.0";
     option root-path "/NFSROOT/slave";
     next-server 192.168.99.1;
     host ssi5 {
         hardware ethernet MACアドレス1;
         fixed-address 192.168.99.5;
         option host-name "ssi5";
     }
     host ssi6 {
         hardware ethernet MACアドレス2;
         fixed-address 192.168.99.6;
         option host-name "ssi6";
     }
     host ssi7 {
         hardware ethernet MACアドレス3;
         fixed-address 192.168.99.7;
         option host-name "ssi7";
     }
     host ssi8 {
         hardware ethernet MACアドレス4;
         fixed-address 192.168.99.8;
         option host-name "ssi8";
     }
 }
 group {
     filename "/srv/tftp/pxelinux.0";
     server-name "192.168.99.1";
     option root-path "/NFSROOT/slave";
     next-server 192.168.99.1;
 }
**/etc/sysctl.conf
 net.ipv4.conf.default.rp_filter=1
 net.ipv4.conf.all.rp_filter=1
 net.ipv4.ip_forward=1
 net.ipv4.conf.all.accept_redirects = 0
**/etc/exports
 /NFSROOT/slave 192.168.99.0/24(rw,sync,no_root_squash,no_subtree_check,fsid=0)
**/etc/yp.conf
 ypserver 127.0.0.1
**/etc/ypserv.conf
 192.168.99. : * : shadow.byname         : port
 192.168.99. : * : passwd.adjunct.byname : port
 *           : * : *                     : none
**/etc/defaults/nis
 NISSERVER=master
 NISCLIENT=true
 YPPWDDIR=/etc
 YPCHANGEOK=chsh
 NISMASTER=
 YPSERVARGS=
 YPBINDARGS=-no-dbus
 YPPASSWDDARGS=
 YPXFRDARGS=
**/var/yp/Makefile
 + ALL = passwd shadow group hosts rpc services netid protocols netgrp
*slave node側ファイル
**/etc/fstab
 proc        /proc     proc  defaults 0 0
 /dev/nfs    /         nfs   defaults 0 1
 none        /tmp      tmpfs defaults 0 0
 none        /var/run  tmpfs defaults 0 0
 none        /var/lock tmpfs defaults 0 0
 none        /var/tmp  tmpfs defaults 0 0
 LABEL=OCFS2 /work     ocfs2 _netdev  0 0
**/etc/hosts
 127.0.0.1       localhost
 192.168.99.5    ssi5.mycluster.home         ssi5
 192.168.99.6    ssi6.mycluster.home         ssi6
 192.168.99.7    ssi7.mycluster.home         ssi7
 192.168.99.8    ssi8.mycluster.home         ssi8
 192.168.99.9    ssi9.mycluster.home         ssi9
 192.168.99.10   ssi10.mycluster.home         ssi10
 192.168.99.11   ssi11.mycluster.home         ssi11
 192.168.99.12   ssi12.mycluster.home         ssi12
**/etc/resolv.conf
 nameserver DNSサーバIP1
 nameserver DNSサーバIP2
**/etc/hostname
空にする
**/etc/ntp.conf
 driftfile /var/lib/ntp/ntp.drift
 statistics loopstats peerstats clockstats
 filegen loopstats file loopstats type day enable
 filegen peerstats file peerstats type day enable
 filegen clockstats file clockstats type day enable
 server 192.168.99.1 iburst
 restrict -4 default kod notrap nomodify nopeer noquery
 restrict -6 default kod notrap nomodify nopeer noquery
 restrict 127.0.0.1
 restrict ::1
**/etc/default/o2cb
 O2CB_ENABLED=true
 O2CB_BOOTCLUSTER=ocfs2
 O2CB_HEARTBEAT_THRESHOLD=31
 O2CB_IDLE_TIMEOUT_MS=30000
 O2CB_KEEPALIVE_DELAY_MS=2000
 O2CB_RECONNECT_DELAY_MS=2000
master nodeからコピー
**/etc/iscsi/iscsid.conf
master nodeからコピー
**/etc/ocfs2/cluster.conf
master nodeからコピー
*コマンド
 sudo apt-get install \
 dhcp3-server atftpd nfs-kernel-server \
 syslinux debootstrap ntp
 syslinux debootstrap ntp nis
 sudo ne /var/yp/Makefile
 sudo ne /etc/default/nis
 sudo /usr/lib/yp/ypinit -m
 sudo make -C /var/yp
 sudo /etc/init.d/nis restart
 sudo mkdir -p /NFSROOT
 sudo sudo debootstrap wheezy \
 /NFSROOT/slave \
 http://ftp.jp.debian.org/debian/
 sudo chroot /NFSROOT/slave
 apt-get install open-iscsi ocfs2-tools ntp ne
 sudo rm -rf bin/* usr/* sbin/* home/* lib/* opt/* root/* var/run/* var/lock/* var/tmp/*
 sudo ne etc/fstab
 sudo ne /etc/fstab
 sudo cp /usr/lib/syslinux/pxelinux.0 /srv/tftp/
 cd /srv/tftp
 sudo mkdir boot
 sudo mount --bind /boot /srv/tftp/boot
 sudo ne /etc/initramfs-tools/initramfs.conf
 sudo mkinitramfs -o boot/initrd.img-3.1.0-1-slave
 sudo mkdir pxelinux.cfg
 sudo ne pxelinux.cfg/default
 sudo ne /etc/default/atftpd
 sudo /etc/init.d/atftpd start
 sudo ne /etc/default/ntpdate
 sudo ne /etc/default/isc-dhcp-server
 sudo ne /etc/dhcp/dhcpd.conf
 sudo ne /etc/sysctl.conf
 sudo ne /etc/exports
 ypinit -s hostname.mycluster.home

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