Hi, A similar request was made to Devuan a while ago[1].
My reading is that an initscript is no longer required. Based on the changelog entry[2], the non-systemd way of doing this is now kexec-load-kernel; reboot Mark [1] https://bugs.devuan.org/871 [2] https://sources.debian.org/src/kexec-tools/1%3A2.0.29-2/debian/changelog#L60
