定制CentOS 6.0精简的自动安装版

CentOS 6.0 在大家翘首以盼中姗姗来迟，但官方发布的DVD太过于庞大，很多组件其实在日常的生产环境中并用不上，所以基于此种情况，在这里我们就来对官方发布的DVD进行瘦身，只安装我们需要的组件，并实现自动安装，安装完毕后再对系统做基本的初始化，这样在生产环境中需要批量布署服务器的时候，显的效率非常高1、定制安装系统，选择常用的组件
2、安装制作发行版所需的基本软件包
yum –y install createrepo mkisofs3、生成安装系统所需的rpm文件列表
awk "/Installing/{print $2}" install.log |sed "s/^[0-9]*://g" >/root/packages.list4、创建定制工作目录
mkdir -p /mnt/cdrom
mkdir -p /data/OS
mount /dev/cdrom /mnt/cdrom
rsync –a --exclude=Packages /mnt/cdrom /data/OS
mkdir /data/OS/Packages5、复制精简后的RPM包
vi /data/cprmps.sh #创建自动复制RPM包脚本

#！/bin/bash
DEBUG=0
CentOS_DVD=/mnt/cdrom
ALL_RPMS_DIR=/mnt/cdrom/Packages #源光盘RPM包存放的目录
KOS_RPMS_DIR=/data/OS/Packages #精简后RPM包存放的目录
packages_list=/root/packages.list #精简后的RPM包列表
number_of_packages=`cat $packages_list | wc -l`
i=1
while [ $i -le $number_of_packages ] ; do
line=`head -n $i $packages_list | tail -n -1`
name=`echo $line | awk "{print $1}"`
version=`echo $line | awk "{print $3}" | cut -f 2 -d :`
if [ $DEBUG -eq "1" ] ; then
echo $i: $line
echo $name
echo $version
fi
if [ $DEBUG -eq "1" ] ; then
ls $ALL_RPMS_DIR/$name-$version*
if [ $？ -ne 0 ] ; then
echo "cp $ALL_RPMS_DIR/$name-$version* "
fi
else
echo "cp $ALL_RPMS_DIR/$name-$version* $KOS_RPMS_DIR/"
cp $ALL_RPMS_DIR/$name-$version* $KOS_RPMS_DIR/
# in case the copy failed
if [ $？ -ne 0 ] ; then
echo "cp $ALL_RPMS_DIR/$name-$version* "
cp $ALL_RPMS_DIR/$name* $KOS_RPMS_DIR/
fi
fi
i=`expr $i + 1`
done

chmod +x cprpm.sh
./cprpm.sh6、配置kickstart脚本
vi /data/OS/isolinux/kerry.cfg

# Kickstart file automatically generated by anaconda.
#Install OS instead of upgrade
install
#Use text mode install
text
#Use CDROM installation media
cdrom
lang en_US.UTF-8
keyboard us
#Skip the X Configuration
skipx
#Network information
#network --device eth0 --onboot yes --bootproto static --ip 192.168.9.226 --netmask 255.255.255.0 --gateway 192.168.9.1 --nameserver 192.168.9.1 --noipv6 --hostname kerry-web-001
network --bootproto dhcp --noipv6 --onboot=yes --hostname kerry-web-001
#root -- 1q2w3e
rootpw --iscrypted $6$ZVQx8trb4JB693IS$tdwYvbnrNLgAv9xyQTMm2/0IV5pmZWwa0dD.GWh69/LK0Ls4aUXUl3xJiPRyzVuRZDUdEzw0h26zRS5KOdbBl1
firewall --disabled
#System authorization information
authconfig --enableshadow --enablemd5
selinux --disabled
timezone --utc Asia/Shanghai
#System bootloader configuration
bootloader --location=mbr
#Clear the Master Boot Record
zerombr yes
# The following is the partition information you requested
# Note that any partitions you deleted are not expressed
# here so unless you clear all partitions first, this is
# not guaranteed to work
#Partition clearing information
clearpart --all --initlabel
part /boot --fstype ext4 --size=200 --asprimary
part / --fstype ext4 --size=10000
part swap --size=4096
part /data --fstype ext4 --size=1 --grow
#--- Reboot the host after installation is done
reboot
%packages
@base
@core
@development
@server-policy
sgpio
nmap
iptraf
ntp
%post --nochroot
# Mount CDROM
mkdir -p /mnt/cdrom
mount -r -t iso9660 /tmp/cdrom /mnt/cdrom
cp /mnt/cdrom/ipmod.tar.gz /mnt/sysimage/tmp/ipmod.tar.gz > /dev/null
cd /mnt/sysimage/tmp/
tar -zxvf ipmod.tar.gz > /dev/null
cp -R /mnt/sysimage/tmp/ipmod/* /mnt/sysimage/root/ > /dev/null 2>/dev/null
cp -R /mnt/sysimage/tmp/etc/* /mnt/sysimage/etc/ > /dev/null 2>/dev/null
cp -R /mnt/sysimage/tmp/usr/* /mnt/sysimage/usr/ > /dev/null 2>/dev/null
cp -R /mnt/sysimage/tmp/var/* /mnt/sysimage/var/ > /dev/null 2>/dev/null
cp -R /mnt/sysimage/tmp/boot/* /mnt/sysimage/boot/ > /dev/null 2>/dev/null
cp -R /mnt/sysimage/tmp/sbin/* /mnt/sysimage/sbin/ > /dev/null 2>/dev/null
umount /mnt/cdrom
%post
#vim syntax on
sed -i "8 s/^/alias vi="vim"/" /root/.bashrc 2>/dev/null
echo "syntax on" > /root/.vimrc 2>/dev/null
#init_ssh
ssh_cf="/etc/ssh/sshd_config"
sed -i -e "74 s/^/#/" -i -e "76 s/^/#/" $ssh_cf
sed -i "s/#UseDNS yes/UseDNS no/" $ssh_cf
#client
sed -i -e "44 s/^/#/" -i -e "48 s/^/#/" $ssh_cf
# Remove the ISO File translation files
find / -name TRANS.TBL -exec rm {} ; /dev/null 2>/dev/null
# Remove some unneeded services
#--------------------------------------------------------------------------------
cat << EOF
+--------------------------------------------------------------+
| === Welcome to Tunoff services === |
+--------------------------------------------------------------+
EOF
#---------------------------------------------------------------------------------
for i in `ls /etc/rc3.d/S*`
do
CURSRV=`echo $i|cut -c 15-`
echo $CURSRV
case $CURSRV in
crond | irqbalance | microcode_ctl | network | random | sshd | syslog | local ）
echo "Base services, Skip！"
;;
*）
echo "change $CURSRV to off"
chkconfig --level 235 $CURSRV off
service $CURSRV stop
;;
esac
done
# file descriptors
ulimit -HSn 65535
echo -ne "
* soft nofile 65536
* hard nofile 65536
" >>/etc/security/limits.conf
#set sysctl
true > /etc/sysctl.conf
cat >> /etc/sysctl.conf << EOF
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
net.ipv4.tcp_max_tw_buckets = 6000
net.ipv4.tcp_sack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_rmem = 4096 87380 4194304
net.ipv4.tcp_wmem = 4096 16384 4194304
net.core.wmem_default = 8388608
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.core.netdev_max_backlog = 262144
net.core.somaxconn = 262144
net.ipv4.tcp_max_orphans = 3276800
net.ipv4.tcp_max_syn_backlog = 262144
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_synack_retries = 1
net.ipv4.tcp_syn_retries = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_mem = 94500000 915000000 927000000
net.ipv4.tcp_fin_timeout = 1
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.ip_local_port_range = 1024 65535
EOF
/sbin/sysctl -p
#close ctrl+alt+del
sed -i "s/ca::ctrlaltdel:/sbin/shutdown -t3 -r now/#ca::ctrlaltdel:/sbin/shutdown -t3 -r now/" /etc/inittab
#set purview
chmod 600 /etc/passwd
chmod 600 /etc/shadow
chmod 600 /etc/group
chmod 600 /etc/gshadow

Linux可控的复杂度原因探讨Ubuntu 11.04 更新后无法动态获取ip相关资讯 CentOS CentOS 6.0

CentOS虚拟机NAT静态IP设置（07/04/2013 17:09:32）
CentOS 格式化新硬盘并设置开机自（07/04/2013 16:50:50）
服务器为何用CentOS不用Ubnutu （02/24/2013 15:19:10）

CentOS /usr/libexec/gconf-sanity （07/04/2013 17:07:42）
为什么我们选择CentOS而不是Debian （06/06/2013 06:19:40）
在CentOS下搭建Android 开发环境（02/18/2013 09:14:14）

本文评论查看全部评论（0）