add lvm2

required for ceph in some configurations

post-debootstrap-installer.sh

@@ -23,7 +23,7 @@ apt-get -y install locales
 
 ### boot
 
-apt-get -y install mdadm cryptsetup systemd systemd-sysv btrfs-tools firmware-linux
+apt-get -y install mdadm cryptsetup systemd systemd-sysv btrfs-tools firmware-linux lvm2
 
 # --force-confold because we already provide /etc/dropbear-initramfs/config
 apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" install dropbear-initramfs