释放双眼，带上耳机，听听看~！
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
运行完脚本后，环境就搭建完成，将服务器从
PXE
启动：
脚本代码：
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2
3
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5 #! /bin/bash
6
7 #
8
9 # FILE: pxe_kickstart_install.sh
10
11 #
12
13 # USAGE: ./pxe_kickstart_install.sh
14
15 #
16
17 # DESCRIPTION: quickly install pxe+tftp+nginx+kickstart, auto install centos 5
18
19 #
20
21 # AUTHOR: http://waydee.blog.51cto.com/#
22
23 # CREATED: 2012-4-24
24
25 # VERSION: 1.0
26
27
28
29
30
31
32
33 #################### VARIABLES ####################
34
35
36
37 ISO_MNT="/mnt/iso" #ISO_MNT is CentOS DVD mount dir
38
39 G_LEFT="\e[0;32m\033[1m" #G_LEFT and G_RIGHT to echo green strings
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41 G_RIGHT="\e[m" #G_LEFT and G_RIGHT to echo green strings
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43 R_LEFT="\e[0;31m\033[1m" #R_LEFT and R_RIGHT to echo red strings
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45 R_RIGHT="\e[m" #R_LEFT and R_RIGHT to echo red strings
46
47 HTML_DIR="/usr/share/nginx/html" #HTML_DIR is nginx / dir,and copy centos dvd to this dir
48
49 NAME_SERVER="192.168.2.101" #NAME_SERVER is for dhcpd.conf domain-name-servers
50
51 SUBNET="192.168.2.0" #SUBNET is for dhcpd.conf subnet
52
53 NETMASK="255.255.255.0" #NETMASK is for dhcpd.conf netmask
54
55 RANG_START="192.168.2.220" #RANG_START is for dhcpd.conf range start
56
57 RANG_END="192.168.2.225" #RANG_END is for dhcpd.conf rang end
58
59 NEXT_SERVER="192.168.2.101" #NEXT_SERVER is for dhcpd.conf next_server
60
61 TFTPBOOT_DIR="/var/lib/tftpboot" #tftp boot dir ,default is /var/lib/tftpboot
62
63 PXELINUX_DIR="${TFTPBOOT_DIR}/pxelinux.cfg" #pxelinux.cfg dir
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65 BOOT_SIZE="100" #set /boot size
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67 SWAP_SIZE="4096" #set swap size
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69 ROOT_SIZE="40960" #set / size , the rest set to /opt
70
71
72
73
74
75 #################### FUNCTIONS ####################
76
77
78
79 #check_mnt_dir use to check if ISO_MNT dir exits
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81 check_mnt_dir()
82
83 {
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85 if [ -e ${ISO_MNT} ]
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87 then
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89 echo -e "INFO: ${ISO_MNT} dir has ${G_LEFT}exits${G_RIGHT}."
90
91 else
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93 mkdir -p ${ISO_MNT}
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95 echo -e "INFO: Create dir ${ISO_MNT} ${G_LEFT}done${G_RIGHT}."
96
97 fi
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99 }
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106
107
108
109 #################### MAIN ####################
110
111
112
113 #install EPEL
114
115 if [ ! -e /etc/yum.repos.d/epel.repo ]
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117 then
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119 rpm -ivh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm 1>/dev/null
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121 echo -e "Install EPEL source ${G_LEFT}done${G_RIGHT}."
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123 fi
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125
126
127 #install tftp-server system-config-kickstart dhcp syslinux nginx
128
129 yum -y install tftp-server system-config-kickstart dhcp syslinux nginx 1>/dev/null
130
131 echo -e "INFO: Install RPMS ${G_LEFT}done${G_RIGHT}."
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133
134
135 #create mnt dir
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137 check_mnt_dir
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139
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141 #mount DVD image to ISO_MNT
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143 mount -t iso9660 /dev/cdrom ${ISO_MNT} 1>/dev/null
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145 echo -e "INFO: Mount cdrom to ${ISO_MNT} ${G_LEFT}done${G_RIGHT}."
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147
148
149 #copy file to html dir
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151 echo -e "INFO: Start to copy CentOS image, this may take severl minitus ..."
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153 cp -a ${ISO_MNT}/* ${HTML_DIR} 1>/dev/null
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155 echo -e "INFO: Copy Centos DVD ${G_LEFT}done${G_RIGHT}."
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157
158
159 #config dhcp server
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161 cat>/etc/dhcp/dhcpd.conf<<EOF
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163 option domain-name-servers ${NAME_SERVER};
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165 max-lease-time 7200;
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167 authoritative;
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171 subnet ${SUBNET} netmask ${NETMASK} {
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173 range ${RANG_START} ${RANG_END};
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175 next-server ${NEXT_SERVER};
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177 filename "pxelinux.0";
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179 }
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181 EOF
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185 echo -e "INFO: Config DHCP ${G_LEFT}done${G_RIGHT}."
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187
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189 #start dhcp server
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191 service dhcpd restart 1>/dev/null
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193 sleep 2
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195
196
197 #check if dhcpd is started
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199 ps aux|grep dhcpd|grep -v grep 1>/dev/null
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201 DHCP_STATUS=$?
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203 if [[ ${DHCP_STATUS} == 1 ]]
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205 then
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207 echo -e "ERROR: DHCPD start ${R_LEFT}Failed${R_RIGHT}."
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209 exit 1
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211 else
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213 echo -e "INFO: DHCPD start ${G_LEFT}OK${G_RIGHT}."
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215 fi
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217
218
219 #turn on tftp
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221 sed -i 's/disable.*$/disable =no/' /etc/xinetd.d/tftp
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223 echo -e "INFO: TFTP turn on ${G_LEFT}OK${G_RIGHT}."
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225
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227 #restart xinetd service
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229 service xinetd restart 1>/dev/null
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231 echo -e "INFO: Xinetd restart ${G_LEFT}OK${G_RIGHT}.."
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233
234
235 #create pxelinux.cfg dir
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237 if [ -e ${PXELINUX_DIR} ]
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239 then
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241 echo -e "INFO: ${PXELINUX_DIR} dir has ${G_LEFT}exits${G_RIGHT}."
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243 else
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245 mkdir -p ${PXELINUX_DIR}
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247 echo -e "INFO: Create dir ${PXELINUX_DIR} ${G_LEFT}done${G_RIGHT}."
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249 fi
250
251
252
253 #copy initrd.img vmlinuz pxelinux.0
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255 cp -a ${ISO_MNT}/images/pxeboot/initrd.img ${TFTPBOOT_DIR}
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257 echo -e "INFO: Copy initrd.img to ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}."
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261 cp -a ${ISO_MNT}/images/pxeboot/vmlinuz ${TFTPBOOT_DIR}
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263 echo -e "INFO: Copy vmlinuz to ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}."
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267 cp -a /usr/share/syslinux/pxelinux.0 ${TFTPBOOT_DIR}
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269 echo -e "INFO: Copy pxelinux.0 to ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}."
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273
274
275 #config pxelinux.cfg file default
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277 cat>${PXELINUX_DIR}/default<<EOF
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279 default ks
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281 prompt 1
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283 timeout 600
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285 display boot.msg
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287 F1 boot.msg
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289 F2 options.msg
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291 F3 general.msg
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293 F4 param.msg
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295 F5 rescue.msg
296
297 label linux
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299 kernel vmlinuz
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301 append initrd=initrd.img
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303 label text
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305 kernel vmlinuz
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307 append initrd=initrd.img text
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309 label ks
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311 menu default
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313 kernel vmlinuz
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315 append initrd=initrd.img ksdevice=eth0 ks=http://${NAME_SERVER}/ks.cfg
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317 label local
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319 localboot 1
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321 label memtest86
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323 kernel memtest
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325 append -
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327 EOF
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329 echo -e "INFO: pxelinux.cfg/default ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}."
330
331
332
333 #config ks.cf file
334
335 cat>${HTML_DIR}/ks.cfg<<EOF
336
337 #platform=x86, AMD64, or Intel EM64T
338
339 #version=DEVEL
340
341 # Firewall configuration
342
343 firewall --enabled --http --ssh
344
345 # Install OS instead of upgrade
346
347 install
348
349 # Use hard drive installation media
350
351 #harddrive --dir=/ --partition=/dev/sdb1
352
353 url --url=http://${NAME_SERVER}/
354
355 # Root password
356
357 rootpw --iscrypted $1$kBe14BGG$GEWFllYBwDpMn055nK7Jk0
358
359 # System authorization information
360
361 auth --useshadow --passalgo=sha512
362
363 # Use text mode install
364
365 text
366
367 # System keyboard
368
369 keyboard us
370
371 # System language
372
373 lang en_US
374
375 # SELinux configuration
376
377 selinux --disabled
378
379 # Do not configure the X Window System
380
381 skipx
382
383 # Installation logging level
384
385 logging --level=info
386
387 # Reboot after installation
388
389 reboot
390
391 # System timezone
392
393 timezone Asia/Shanghai
394
395 # Network information
396
397 network --bootproto=dhcp --device=eth0 --onboot=on
398
399 # System bootloader configuration
400
401 bootloader --location=mbr
402
403 # Partition clearing information
404
405 clearpart --all
406
407 # Disk partitioning information
408
409 part /boot --asprimary --fstype="ext3" --size=${BOOT_SIZE}
410
411 part swap --fstype="swap" --size=${SWAP_SIZE}
412
413 part / --fstype="ext3" --size=${ROOT_SIZE}
414
415 part /opt --fstype="ext3" --grow --size=1
416
417
418
419 %packages
420
421 @base
422
423 @core
424
425 imake
426
427 keyutils
428
429 trousers
430
431 fipscheck
432
433 device-mapper-multipath
434
435 @development-libs
436
437 @admin-tools
438
439 @system-tools
440
441 @chinese-support
442
443 @text-internet
444
445 EOF
446
447 echo -e "INFO: ks.cfg config ${TFTPBOOT_DIR} ${G_LEFT}done${G_RIGHT}."
448
449
450
451 #restart nginx
452
453 service nginx restart 2>&1 >/dev/null
454
455 sleep 2
456
457
458
459 ps aux|grep nginx|grep -v grep 1>/dev/null
460
461 NGINX_STATUS=$?
462
463 if [[ ${NGINX_STATUS} == 1 ]]
464
465 then
466
467 echo -e "ERROR: nginx start ${R_LEFT}Failed${R_RIGHT}."
468
469 exit 1
470
471 else
472
473 echo -e "INFO: nginx start ${G_LEFT}OK${G_RIGHT}."
474
475 fi
476
477
478
479 #pxe_kickstart_install done
480
481 echo -e "INFO: PXE+TFTP+NGINX+Kickstart has been installed ${G_LEFT}SUCCESS${G_RIGHT}."
482
483
484
Kickstart创建LVM命令
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2
3
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5 # Disk partitioning information
6
7
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9 part /boot --fstype="ext3" --size=100
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11
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13 part pv.01 --size=1 --grow
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17 volgroup vg_root pv.01
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21 logvol / --vgname=vg_root --size=30720 --name=lv_root
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25 logvol swap --vgname=vg_root --size=32768 --name=lv_swap
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29 logvol /opt --vgname=vg_root --size=1 --grow --name=lv_opt
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32
