#!/bin/sh run_latehook() { local newroot="/new_root/" /usr/bin/systemd-machine-id-setup --root="${newroot}" hostprefix="$(cat "${newroot}/etc/hostname")" if [[ -n "${hostname}" ]]; then msg ":: Setting hostname for main system to '${hostname}'..." elif [[ -e /sys/class/dmi/id/product_uuid ]]; then msg ":: Setting hostname from product uuid..." hostname="$(sha1sum < /sys/class/dmi/id/product_uuid | cut -c1-8)" else msg ":: Setting hostname to random string..." hostname="$(cut -d- -f1 < /proc/sys/kernel/random/boot_id)" fi echo -n "${hostprefix}-${hostname}" > "${newroot}/etc/hostname" sed -i "/^127.0.0.1/s/$/\t${hostprefix}-${hostname}/" "${newroot}/etc/hosts" }