Fix memory erasure when booted with systemd
systemd handles kexec in a different way than sysvinit, so we have to adapt our stuff a bit:
- https://bugs.debian.org/699008
- https://bugs.debian.org/747514
- https://wiki.archlinux.org/index.php/kexec
- Right way to do kexec (see the rest of the thread too)
Feature Branch: feature/jessie
Parent Task: #5821 (closed)
Related issues
- Related to #7468 (closed)
- Has duplicate #8099 (closed)
Original created by @intrigeri on 7183 (Redmine)