7.7. Post-installation Script
%post command. This section is useful for functions such as installing additional software and configuring an additional nameserver.
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%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. |
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- --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.
7.7.1. Examples
Turn services on and off:
/sbin/chkconfig --level 345 telnet off /sbin/chkconfig --level 345 finger off /sbin/chkconfig --level 345 lpd off /sbin/chkconfig --level 345 httpd on |
Run a script named runme from an NFS share:
mkdir /mnt/temp mount 10.10.0.2:/usr/new-machines /mnt/temp open -s -w -- /mnt/temp/runme umount /mnt/temp |
Add a user to the system:
/usr/sbin/useradd bob /usr/bin/chfn -f "Bob Smith" bob /usr/sbin/usermod -p 'kjdf$04930FTH/ ' bob |
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