Hi Forum friends,
I am preparing a customized CentOS ISO, in which during installation I want to run my own script.
I had updated the squashfs.img file with all my relevant application and script file my application would need python3.4 and few other packages which makes my Squashfs.img to ~1.0 GB file, but while installing it's not triggered

I added my script in /usr/lib/dracut/modules.d/66xxxxx/ and packed with squashfs.img, its not getting triggered,

how do I ensure this script is triggered, should I do anything in initrd.img for this

Regards
SriRamaSan

The link may help to create custom iso
https://vittegleo.com/2012/12/12/custom-centos-live-cd/

Without understanding what you custom application does, I don't quite understand the reasoning behind using dracut modules, which afaik is used for configuring system resorces (i.e. udev, mount, ifcfg etc.) versus using something like an init script or systemd unit. But that being said..

Have you tried adding your module to your initrd.img?

/etc/dracut.conf or /etc/dracut.conf.d/*.conf

# Equivalent to -a "my module"
add_dracutmodules+="my module"

or

dracut -a "my module" initrd.img

Hi all My problem got resolved, I had to ensure /etc/systemd/system/default.target points to target file which points to my service