Last couple of upgrades have seen similar results to the below:
Generating grub configuration file ...
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9473:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9473:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9486:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9486:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9499:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9499:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9512:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9512:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9572:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 9572:
/usr/sbin/grub-probe
Found linux image: /boot/vmlinuz-4.4.0-66-generic
Found initrd image: /boot/initrd.img-4.4.0-66-generic
Found linux image: /boot/vmlinuz-4.4.0-65-generic
Found initrd image: /boot/initrd.img-4.4.0-65-generic
Found linux image: /boot/vmlinuz-4.4.0-64-generic
Found initrd image: /boot/initrd.img-4.4.0-64-generic
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 10044:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on vgs invocation. Parent PID 10044:
/usr/sbin/grub-probe
File descriptor 3 (pipe:[53933]) leaked on lvs invocation. Parent PID 10213:
/bin/sh
Failed to probe /dev/sdb1 for filesystem type
Failed to probe /dev/sdc1 for filesystem type
Failed to probe /dev/sdd1 for filesystem type
done
update-rc.d: warning: start and stop actions are no longer supported; falling
back to defaults
Processing triggers for libc-bin (2.23-0ubuntu5) ...Processing triggers for
initramfs-tools (0.122ubuntu8.8) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-66-generic
