PXE+TFTP+NGINX+Kickstart安装并测试完成，并用脚本实现自动安装PXE环境，脚本介绍如下：

脚本功能： 自动安装配置PXE+TFTP+NGINX+Kickstart环境

运行前提： 将CentOS DVD文件准备好，默认是从光驱挂载并复制

脚本变量： 根据实际情况修改如下变量

HTML_DIR： nginx默认的html目录

NAME_SERVER： dhcpd.conf的domain-name-servers的值

SUBNET： dhcpd.conf的subnet的值

NETMASK： dhcpd.conf的netmask的值

RANG_START： dhcpd.conf的IP地址池开始地址

RANG_END： dhcpd.conf的IP地址池结束地址

NEXT_SERVER： dhcpd.conf的next_server的值

TFTPBOOT_DIR： tftp默认目录

PXELINUX_DIR： pxelinux.cfg目录

BOOT_SIZE： /boot分区大小

SWAP_SIZE： swap大小

ROOT_SIZE： /分区大小， 其余空间为/opt分区

使用注意： PXE环境和生产环境要隔离，并且限制主机的访问，防止有服务器默认从网卡启动，重启后就直接重新安装系统

脚本功能演示：

演示时为了节省时间，没有将iso挂载到光驱，所以找不到iso下面的文件

PXE+TFTP+NGINX+Kickstart自动安装脚本_PXE

运行完脚本后，环境就搭建完成，将服务器从PXE启动：

PXE+TFTP+NGINX+Kickstart自动安装脚本_PXE_02

PXE+TFTP+NGINX+Kickstart自动安装脚本_NGINX_03

 

脚本代码：

  1. #! /bin/bash  
  2. # 
  3. # FILE: pxe_kickstart_install.sh  
  4. #  
  5. # USAGE: ./pxe_kickstart_install.sh  
  6. #  
  7. # DESCRIPTION: quickly install pxe+tftp+nginx+kickstart, auto install centos 5   
  8. #  
  9. # AUTHOR: http://waydee.blog.51cto.com/# 
  10. # CREATED: 2012-4-24 
  11. # VERSION: 1.0  
  12.  
  13.  
  14.  
  15. #################### VARIABLES #################### 
  16.  
  17. ISO_MNT="/mnt/iso"                  #ISO_MNT is CentOS DVD mount dir 
  18. G_LEFT="\e[0;32m\033[1m"            #G_LEFT and G_RIGHT to echo green strings 
  19. G_RIGHT="\e[m"                      #G_LEFT and G_RIGHT to echo green strings 
  20. R_LEFT="\e[0;31m\033[1m"            #R_LEFT  and R_RIGHT  to echo red  strings 
  21. R_RIGHT="\e[m"                      #R_LEFT  and R_RIGHT  to echo red  strings 
  22. HTML_DIR="/usr/share/nginx/html"    #HTML_DIR is nginx / dir,and copy centos dvd to this dir  
  23. NAME_SERVER="192.168.2.101"         #NAME_SERVER is for  dhcpd.conf domain-name-servers   
  24. SUBNET="192.168.2.0"                #SUBNET is for  dhcpd.conf subnet 
  25. NETMASK="255.255.255.0"             #NETMASK is for dhcpd.conf  netmask  
  26. RANG_START="192.168.2.220"          #RANG_START is for dhcpd.conf  range start  
  27. RANG_END="192.168.2.225"            #RANG_END is  for dhcpd.conf  rang end 
  28. NEXT_SERVER="192.168.2.101"         #NEXT_SERVER is for dhcpd.conf  next_server  
  29. TFTPBOOT_DIR="/var/lib/tftpboot"    #tftp boot dir ,default is /var/lib/tftpboot 
  30. PXELINUX_DIR="${TFTPBOOT_DIR}/pxelinux.cfg"     #pxelinux.cfg dir  
  31. BOOT_SIZE="100"                     #set /boot size   
  32. SWAP_SIZE="4096"                    #set swap size  
  33. ROOT_SIZE="40960"                   #set / size , the rest set to /opt  
  34.  
  35.  
  36. #################### FUNCTIONS #################### 
  37.  
  38. #check_mnt_dir use to check if ISO_MNT dir exits 
  39. check_mnt_dir() 
  40. { 
  41.         if [ -e ${ISO_MNT} ] 
  42.         then 
  43.             echo -e "INFO: ${ISO_MNT} dir has ${G_LEFT}exits${G_RIGHT}." 
  44.         else 
  45.             mkdir -p ${ISO_MNT} 
  46.             echo -e "INFO: Create dir ${ISO_MNT} ${G_LEFT}done${G_RIGHT}." 
  47.         fi   
  48. } 
  49.  
  50.  
  51.  
  52.  
  53. ####################  MAIN  #################### 
  54.  
  55. #install EPEL  
  56. if [ ! -e /etc/yum.repos.d/epel.repo ] 
  57. then 
  58.      rpm -ivh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm 1>/dev/null 
  59.      echo -e "Install EPEL source ${G_LEFT}done${G_RIGHT}." 
  60. fi 
  61.  
  62. #install tftp-server system-config-kickstart dhcp syslinux nginx  
  63. yum -y install tftp-server system-config-kickstart dhcp syslinux nginx   1>/dev/null 
  64. echo -e "INFO: Install RPMS ${G_LEFT}done${G_RIGHT}." 
  65.  
  66. #create mnt dir 
  67. check_mnt_dir  
  68.  
  69. #mount DVD p_w_picpath to ISO_MNT 
  70. mount -t iso9660 /dev/cdrom  ${ISO_MNT} 1>/dev/null 
  71. echo -e "INFO: Mount cdrom to ${ISO_MNT} ${G_LEFT}done${G_RIGHT}." 
  72.  
  73. #copy file to html dir 
  74. echo -e "INFO: Start to copy CentOS p_w_picpath, this may take severl minitus ..." 
  75. cp -a ${ISO_MNT}/*     ${HTML_DIR} 1>/dev/null  
  76. echo -e "INFO: Copy Centos DVD ${G_LEFT}done${G_RIGHT}." 
  77.  
  78. #config dhcp server 
  79. cat>/etc/dhcp/dhcpd.conf<<EOF 
  80. option domain-name-servers ${NAME_SERVER}; 
  81. max-lease-time 7200;               
  82. authoritative;                
  83.  
  84. subnet ${SUBNET} netmask ${NETMASK} { 
  85. range ${RANG_START}  ${RANG_END}; 
  86. next-server ${NEXT_SERVER}; 
  87. filename "pxelinux.0"; 
  88. } 
  89. EOF 
  90.  
  91. echo -e "INFO: Config DHCP ${G_LEFT}done${G_RIGHT}." 
  92.  
  93. #start dhcp server  
  94. service dhcpd restart 1>/dev/null   
  95. sleep 2 
  96.  
  97. #check if dhcpd is started 
  98. ps aux|grep dhcpd|grep -v grep 1>/dev/null 
  99. DHCP_STATUS=$? 
  100. if [[ ${DHCP_STATUS} == 1  ]] 
  101. then 
  102.     echo -e "ERROR: DHCPD start ${R_LEFT}Failed${R_RIGHT}." 
  103.     exit 1 
  104. else 
  105.     echo -e "INFO: DHCPD start ${G_LEFT}OK${G_RIGHT}." 
  106. fi 
  107.  
  108. #turn on tftp 
  109. sed   -i  's/disable.*$/disable         =no/'  /etc/xinetd.d/tftp   
  110. echo -e "INFO: TFTP turn on ${G_LEFT}OK${G_RIGHT}." 
  111.  
  112. #restart xinetd service  
  113. service  xinetd restart 1>/dev/null 
  114. echo -e "INFO: Xinetd restart ${G_LEFT}OK${G_RIGHT}.." 
  115.  
  116. #create pxelinux.cfg dir  
  117. if [ -e ${PXELINUX_DIR} ] 
  118. then 
  119.     echo -e "INFO: ${PXELINUX_DIR} dir has ${G_LEFT}exits${G_RIGHT}." 
  120. else 
  121.     mkdir -p ${PXELINUX_DIR} 
  122.     echo -e "INFO: Create dir ${PXELINUX_DIR} ${G_LEFT}done${G_RIGHT}." 
  123. fi 
  124.  
  125. #copy initrd.img vmlinuz pxelinux.0   
  126. cp -a ${ISO_MNT}/p_w_picpaths/pxeboot/initrd.img  ${TFTPBOOT_DIR} 
  127. echo -e "INFO: Copy initrd.img to ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}." 
  128.  
  129. cp -a ${ISO_MNT}/p_w_picpaths/pxeboot/vmlinuz  ${TFTPBOOT_DIR} 
  130. echo -e "INFO: Copy vmlinuz  to ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}." 
  131.  
  132. cp -a /usr/share/syslinux/pxelinux.0  ${TFTPBOOT_DIR} 
  133. echo -e "INFO: Copy pxelinux.0 to ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}." 
  134.  
  135.  
  136. #config pxelinux.cfg file  default  
  137. cat>${PXELINUX_DIR}/default<<EOF 
  138. default ks  
  139. prompt 1 
  140. timeout 600 
  141. display boot.msg 
  142. F1 boot.msg 
  143. F2 options.msg 
  144. F3 general.msg 
  145. F4 param.msg 
  146. F5 rescue.msg 
  147. label linux 
  148.   kernel vmlinuz 
  149.     append initrd=initrd.img 
  150. label text 
  151.   kernel vmlinuz 
  152.    append initrd=initrd.img text 
  153. label ks 
  154.   menu default  
  155.   kernel vmlinuz 
  156.   append initrd=initrd.img ksdevice=eth0 ks=http://${NAME_SERVER}/ks.cfg 
  157. label local 
  158.   localboot 1 
  159.   label memtest86 
  160.   kernel memtest 
  161. append - 
  162. EOF 
  163. echo -e "INFO: pxelinux.cfg/default ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}." 
  164.  
  165. #config ks.cf file  
  166. cat>${HTML_DIR}/ks.cfg<<EOF 
  167. #platform=x86, AMD64, or Intel EM64T 
  168. #version=DEVEL 
  169. # Firewall configuration 
  170. firewall --enabled --http --ssh 
  171. # Install OS instead of upgrade 
  172. install 
  173. # Use hard drive installation media 
  174. #harddrive --dir=/ --partition=/dev/sdb1 
  175. url --url=http://${NAME_SERVER}/ 
  176. # Root password 
  177. rootpw --iscrypted $1$kBe14BGG$GEWFllYBwDpMn055nK7Jk0 
  178. # System authorization information 
  179. auth  --useshadow  --passalgo=sha512 
  180. # Use text mode install 
  181. text 
  182. # System keyboard 
  183. keyboard us 
  184. # System language 
  185. lang en_US 
  186. # SELinux configuration 
  187. selinux --disabled 
  188. # Do not configure the X Window System 
  189. skipx 
  190. # Installation logging level 
  191. logging --level=info 
  192. # Reboot after installation 
  193. reboot 
  194. # System timezone 
  195. timezone  Asia/Shanghai 
  196. # Network information 
  197. network  --bootproto=dhcp --device=eth0 --onboot=on 
  198. # System bootloader configuration 
  199. bootloader --location=mbr 
  200. # Partition clearing information 
  201. clearpart --all   
  202. # Disk partitioning information 
  203. part /boot --asprimary --fstype="ext3" --size=${BOOT_SIZE} 
  204. part swap --fstype="swap" --size=${SWAP_SIZE} 
  205. part / --fstype="ext3" --size=${ROOT_SIZE} 
  206. part /opt --fstype="ext3" --grow --size=1 
  207.  
  208. %packages 
  209. @base 
  210. @core 
  211. imake 
  212. keyutils 
  213. trousers 
  214. fipscheck 
  215. device-mapper-multipath 
  216. @development-libs 
  217. @admin-tools 
  218. @system-tools 
  219. @chinese-support 
  220. @text-internet 
  221. EOF 
  222. echo -e "INFO: ks.cfg config ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}." 
  223.  
  224. #restart nginx  
  225. service nginx restart 2>&1 >/dev/null  
  226. sleep 2 
  227.  
  228. ps aux|grep nginx|grep -v grep 1>/dev/null  
  229. NGINX_STATUS=$? 
  230. if [[ ${NGINX_STATUS} == 1  ]] 
  231. then 
  232.     echo -e "ERROR: nginx start ${R_LEFT}Failed${R_RIGHT}." 
  233.     exit 1 
  234. else 
  235.     echo -e "INFO: nginx start ${G_LEFT}OK${G_RIGHT}." 
  236. fi 
  237.  
  238. #pxe_kickstart_install done 
  239. echo -e "INFO: PXE+TFTP+NGINX+Kickstart has been installed  ${G_LEFT}SUCCESS${G_RIGHT}."

Kickstart创建LVM命令

 

  1. # Disk partitioning information 
  2.  
  3.  part /boot  --fstype="ext3" --size=100 
  4.  
  5.  part pv.01 --size=1 --grow 
  6.  
  7.  volgroup vg_root pv.01 
  8.  
  9.  logvol / --vgname=vg_root --size=30720 --name=lv_root 
  10.  
  11.  logvol swap --vgname=vg_root --size=32768 --name=lv_swap 
  12.  
  13.  logvol /opt --vgname=vg_root --size=1 --grow --name=lv_opt