Robert Harker Technical Wiki
Thoughts and Ideas About Large Sites

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Kickstart

%pre network detection

%pre
#!/bin/sh
for x in `cat /proc/cmdline`; do
case $x in SERVERNAME*)

eval $x

echo "network --device eth0 --bootproto dhcp --hostname ${SERVERNAME}.example.com" > /tmp/network.ks

;;

esac;
done

%end

%post curl config

%post --log=/root/my-post-log

URLPOSTCONF="http://192.168.15.100/mirrors/ks"
curl ${URLPOSTCONF}/6.2/repos/CentOS-Custom.repo -o /etc/yum.repos.d/CentOS-Custom.repo

%post
(
echo '10.0.0.0/8 via 10.10.21.100' > /etc/sysconfig/network-scripts/route-eth0
sed -i 's/LABEL=\//& console=ttyS0/' /etc/grub.conf
echo 'S0:12345:respawn:/sbin/agetty ttyS0 115200' >> /etc/inittab
echo "ttyS0" >> /etc/securetty
echo 'IPV6INIT=no' >> /etc/sysconfig/network
echo 'install ipv6 /bin/true' >> /etc/modprobe.conf
) 1>/root/post_install.log 2>&1

virt-install: Install CentOS using Kickstart

Type the following command:
# virt-install \
-n centos \
-r 2048 \
--vcpus=1 \
--os-variant=rhel5.4 \
--accelerate \
-v \
-w bridge:br0 \
-w bridge:br1 \
--disk path=/emc/kvm/centos.img,size=100 \
-l http://mirrors.nixcraft.in/centos/5.5/os/x86_64/ \
-nographics \
-x "ks=http://10.10.21.3/static/ks.cfg ksdevice=eth0 ip=10.10.21.76 netmask=255.255.255.240 dns=10.10.21.1 gateway=10.10.21.100"
The -x option is used to pass additional kernel command

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