Bug#855242: Acknowledgement (Stretch RC 2 - LVM not booting)

[zak-123]

Same Bug like: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=848204

> After booting to recovery mode and copying
>   /usr/lib/x86_64-linux-gnu/liblz4.so.1.7.1
> to
>   /lib/x86_64-linux-gnu/liblz4.so.1,
> the system boots normally again.