make-iso.sh

#!/bin/bash

# Run this from directory above isolinux/

DEVICE="/dev/sdb" #TODO: make this more intelligent, rather than hardcoded
PATH="/path/to/original/iso"
BUILT_NAME="custom.iso"
BOOT_COMMAND_LABEL="custom-build"

gunzip -c ${PATH}/repodata/*comps.xml.gz > comps.xml && cd isolinux && createrepo -g ../comps.xml
cd .. && mkisofs -o $BUILT_NAME -b isolinux.bin -c boot.cat -no-emul-boot -V ${BOOT_COMMAND_LABEL} -boot-load-size 4
-boot-info-table -R -J -v -T isolinux/
# makes bootable from CD or USB
isohybrid $BUILT_NAME
sudo su -c "pv $BUILT_NAME | dd of=${DEVICE} bs=64k"