通過網絡安裝系統

[root@localhost ~]# mount /dev/cdrom /mnt
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@localhost ~]# yum install dhcpd-* -y

[root@localhost ~]# cp /usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample /etc/dhcpd.conf
cp: overwrite `/etc/dhcpd.conf'? y
[root@localhost ~]#
[root@localhost ~]# vim /etc/dhcpd.conf

subnet 192.168.10.0 netmask 255.255.255.0 {

# --- default gateway
        option routers                  192.168.10.8;
        option subnet-mask              255.255.255.0;
        filename "pxelinux.0";
        next-server 192.168.10.8;
        option nis-domain               "domain.org";
        option domain-name              "domain.org";
        option domain-name-servers      192.168.1.1;

        option time-offset              -18000; # Eastern Standard Time
#       option ntp-servers              192.168.1.1;
#       option netbios-name-servers     192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
#       option netbios-node-type 2;

range dynamic-bootp 192.168.10.128 192.168.10.254;

重啓dhcp服務：
[root@localhost ~]# service dhcpd restart
Shutting down dhcpd: [ OK ]
Starting dhcpd: [ OK ]
[root@localhost ~]#

安裝tftp
[root@localhost ~]# yum install tftp* -y

[root@localhost ~]# cd /etc/xinetd.d/
[root@localhost xinetd.d]# pwd
/etc/xinetd.d
[root@localhost xinetd.d]# ls
chargen-dgram   discard-dgram   eklogin       krb5-telnet tcpmux-server
chargen-stream discard-stream ekrb5-telnet kshell       tftp
daytime-dgram   echo-dgram      gssftp        rmcp         time-dgram
daytime-stream echo-stream     klogin        rsync        time-stream

修改tftp的配置文件：
[root@localhost xinetd.d]# vim tftp

      service tftp
{
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = -s /tftpboot
        disable                 = no
        per_source              = 11
        cps                     = 100 2
        flags                   = IPv4
}

重啓xinetd：
[root@localhost xinetd.d]# service xinetd restart
Stopping xinetd: [ OK ]
Starting xinetd: [ OK ]
[root@localhost xinetd.d]#

查看根下是否存在tftpboot
[root@localhost ~]# cd /
[root@localhost /]# ls
bin dev home lost+found misc net proc sbin srv tftpboot usr
boot etc lib media mnt opt root selinux sys tmp var
[root@localhost /]#

查看pxelinux.0存在哪裏？
[root@localhost /]# cd tftpboot/
[root@localhost tftpboot]#
[root@localhost tftpboot]# find / -name pxelinux.0
/tftpboot/linux-install/pxelinux.0
/usr/lib/syslinux/pxelinux.0
[root@localhost tftpboot]#

將pxelinux.0複製到/tftpboot下：
[root@localhost tftpboot]# cd /usr/lib/syslinux/
[root@localhost syslinux]# ls
chain.c32     isolinux.bin        mbr.bin      pxelinux.0    syslinux.exe
com32         isolinux-debug.bin memdisk      sys2ansi.pl   syslinux-nomtools
copybs.com    keytab-lilo.pl      menu.c32     syslinux
ethersel.c32 mboot.c32           mkdiskp_w_picpath syslinux.com
[root@localhost syslinux]# cp /usr/lib/syslinux/pxelinux.0 /tftpboot/
[root@localhost syslinux]# ls /tftpboot/
linux-install pxelinux.0
[root@localhost syslinux]#

[root@localhost tftpboot]# mkdir pxelinux.cfg
[root@localhost tftpboot]# cd pxelinux.cfg/
[root@localhost pxelinux.cfg]# ls
[root@localhost pxelinux.cfg]#

[root@localhost ~]# cd /mnt/isolinux/
[root@localhost isolinux]# ls
boot.cat     initrd.img    memtest      rescue.msg vmlinuz
boot.msg     isolinux.bin options.msg splash.lss
general.msg isolinux.cfg param.msg    TRANS.TBL
[root@localhost isolinux]#

查看isolinux.cfg中的內容：
[root@localhost isolinux]# cat isolinux.cfg
default linux
prompt 1
timeout 600
display boot.msg
F1 boot.msg
F2 options.msg
F3 general.msg
F4 param.msg
F5 rescue.msg
label linux
kernel vmlinuz
append initrd=initrd.img
label text
kernel vmlinuz
append initrd=initrd.img text
label ks
kernel vmlinuz
append ks initrd=initrd.img
label local
localboot 1
label memtest86
kernel memtest
append -

[root@localhost isolinux]#

將isolinux.cfg複製到/tftpboot/pxelinux.cfg/default中，並編輯：
[root@localhost isolinux]# cp isolinux.cfg /tftpboot/pxelinux.cfg/default
[root@localhost isolinux]# vim /tftpboot/pxelinux.cfg/default

default menu.c32
prompt 1
timeout 600
display boot.msg
MENU TITLE welcome to linux

label linux
menu lable ^Install or upgrade an existing system for ks
menu default
kernel vmlinuz
append initrd=initrd.img ks=ftp://192.168.10.8/ks.cfg
label local
menu lable1 Boot from ^local drive
localboot 1

[root@localhost ~]# cp /mnt/isolinux/initrd.img /tftpboot/ #鏡像
[root@localhost ~]# cp /mnt/isolinux/vmlinuz /tftpboot/ #內核
[root@localhost ~]# cp /usr/lib/syslinux/menu.c32 /tftpboot/ #圖片
[root@localhost ~]#
[root@localhost ~]# service xinetd restart
Stopping xinetd: [ OK ]
Starting xinetd: [ OK ]
[root@localhost ~]#

[root@localhost ~]# yum install vsftpd pykickstart-* -y
[root@localhost ~]# yum install system-config-kickstart -y

[root@localhost ~]# system-config-kickstart

[root@localhost ~]# cd /var/ftp
[root@localhost ftp]# ls
ks.cfg pub
[root@localhost ftp]# ll
total 8
-rw-r--r-- 1 root root 1542 Jan 17 08:25 ks.cfg
drwxr-xr-x 2 root root 4096 Dec 4 2009 pub

[root@localhost ftp]# mount /dev/cdrom /var/ftp/pub
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@localhost ftp]# pstree -p | grep vsftpd
[root@localhost ftp]# service vsftpd restart
Shutting down vsftpd:                                      [FAILED]
Starting vsftpd for vsftpd:                                [ OK ]
[root@localhost ftp]# service vsftpd restart
Shutting down vsftpd:                                      [ OK ]
Starting vsftpd for vsftpd:                                [ OK ]
[root@localhost ftp]# lsof -i :21
COMMAND   PID USER   FD   TYPE DEVICE SIZE NODE NAME
vsftpd 27198 root    3u IPv4 97261       TCP *:ftp (LISTEN)

重啓新機器自動安裝：