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7. Post-installation Script
Note
The pre-installation script section of kickstart cannot manage multiple install trees
or source media. This information must be included for each created ks.cfg file, as
the pre-installation script occurs during the second stage of the installation process.
7. Post-installation Script
You have the option of adding commands to run on the system once the installation is complete. This section must be at the end of the kickstart file and must start with the %post command. This section is useful for functions such as installing additional software and configuring
an additional nameserver.
Note
If you configured the network with static IP information, including a nameserver,
you can access the network and resolve IP addresses in the %post section. If you
configured the network for DHCP, the /etc/resolv.conf file has not been completed when the installation executes the %post section. You can access the network, but you can not resolve IP addresses. Thus, if you are using DHCP, you
must specify IP addresses in the %post section.
Note
The post-install script is run in a chroot environment; therefore, performing tasks
such as copying scripts or RPMs from the installation media do not work.
--nochroot
Allows you to specify commands that you would like to run outside of the chroot environment.
The following example copies the file /etc/resolv.conf to the file system that was just installed.
%post --nochroot cp /etc/resolv.conf /mnt/sysimage/etc/resolv.conf
--interpreter /usr/bin/python
Allows you to specify a different scripting language, such as Python. Replace /
usr/bin/python with the scripting language of your choice.
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