Hi Please provide hints to resolve this - I have added "sbin/my_utility" in upd-instroot but still its not available when booted from the install-disk1. I am building custom FC5-test3 with anaconda 10.92.14. Though my_utility.rpm is there in i386_disk3 tree, created by splittree.py. I need to run my_utility after booting from the install-disk1 and before kicking the installation. Please help as I could not find any documentation so far to describe the procedure. -vikas