pre_install() { echo " ==> You can boot up systemd any time." echo " ==> Add 'init=/usr/lib/systemd/systemd' to kernel command line." } post_install() { echo " ==> Set up your network interface before you reboot." local _url="https://wiki.gentoo.org/wiki/Handbook:X86/Full/Networking" echo " ==> Visit ${_url}" } post_upgrade() { post_install "$1" } post_remove() { echo " ==> Make sure you install systemd-sysvcompat before you reboot!" }