PXE安装redhat系统
由于这边大部分是redhat，所以在安装PXE服务器的时候需要有些更改。Centos不需要更新源。首先是编辑源文件
mv /etc/yum.repos.d/rhel-debuginfo.repo/etc/yum.repos.d/rhel-debuginfo.repo.bak
vi /etc/yum.repos.d/rhel-debuginfo.repo
name=Red Hat Enterprise Linux 5 -Base
baseurl=http://mirrors.163.com/centos/5/os/$basearch/
gpgcheck=1
name=Red Hat Enterprise Linux 5 -Updates
baseurl=http://mirrors.163.com/centos/5/updates/$basearch/
gpgcheck=1
name=Red Hat Enterprise Linux 5 -Extras
baseurl=http://mirrors.163.com/centos/5/extras/$basearch/
gpgcheck=1
name=Red Hat Enterprise Linux 5 -Addons
baseurl=http://mirrors.163.com/centos/5/addons/$basearch/
gpgcheck=1
rpm --import http://mirrors.163.com/centos/5/os/x86_64/RPM-GPG-KEY-CentOS-5
然后是安装需要的程序
yum install dhcp httpd tftp-server syslinux
接着是编辑各程序的配置文件
DHCP：
cat /etc/dhcpd.conf
ddns-update-style interim;
ignore client-updates;
subnet 10.0.7.0 netmask 255.255.255.0 {
# --- default gateway
option routers10.0.7.77;
option subnet-mask255.255.255.0;
option time-offset-18000;
filename"pxelinux.0";
next-server10.0.7.77;
range dynamic-bootp 10.0.7.80 10.0.7.200;
default-lease-time 21600;
max-lease-time 43200;
}
TFTP：这里就是把disable改成no，然后创建目录/tftpboot/pxelinux.cfg/
cat /etc/xinetd.d/tftp
# default: off
# description: The tftp server serves files using the trivial file transfer \
#protocol.The tftp protocol is often used to boot diskless \
#workstations, download configuration files to network-aware printers, \
#and to start the installation process for some operating systems.
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
}
完成这些后在/vqr/www/html下创建文件夹rh57。然后把iso文件mount上。mount -o loop /root/rh57.iso /var/www/html/rh57
现在就开始编辑自动应答文件ks.cfg
#Kickstart file automatically generated by anaconda.
install
text
url --url http://10.0.7.77/rh57
lang en_US.UTF-8
keyboard us
network --device eth0 --bootproto dhcp --onboot=on
rootpw aaaaaa
firewall --enabled --port=22:tcp --port=22:tcp
authconfig --enableshadow --enablemd5
selinux --disabled
timezone Asia/Shanghai
reboot
bootloader --location=mbr --driveorder=sda --append="rhgb quiet"
clearpart --all --initlabel --drives=sda
part / --fstype ext3 --size=10000 --ondisk=sda
part swap --size=1600 --ondisk=sda
#part /opt --fstype ext3 --size=100 --grow --ondisk=sda
%packages
@admin-tools
@base
@core
@development-libs
@development-tools
@editors
@graphical-internet
@legacy-network-server
@legacy-software-development
@legacy-software-support
@network-server
@server-cfg
@system-tools
@base-x
keyutils
kexec-tools
iscsi-initiator-utils
trousers
fipscheck
device-mapper-multipath
perl-Convert-ASN1
imake
audit
编辑完成后，把相关的启动文件cp到tftp目录里。
cp /usr/share/syslinux/pxelinux.0/tftpboot
cd /var/www/html/rh57/isolinux
cp vmlinuz /tftpboot/
cp initrd.img /tftpboot/
cp boot.* /tftpboot/
cp isolinux.cfg /tftpboot/pexlinux.cfg/default
编辑default文件
default ks
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 local
localboot 1
label memtest86
kernel memtest
append -
label ks
kernel vmlinuz
append ks=http://10.0.7.77/ks57.cfg initrd=initrd.img
最后启动相关服务，可以用ps来检查一下是否启动
service httpd restart
service dhcpd restart
service xinetd restart
需要安装系统的服务器只是开机、网络启动即可。
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