[Xenial] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old

[Yung Shen]

According to this it should be fixed https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1374759/comments/32

But on my system I intended to install on /dev/sdb1 and noticed these warning message in my syslog

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: os-prober 1.70ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Mon May 9 11:42:57 2016
Dependencies:
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu3
 libgcc1 1:6.0.1-0ubuntu1
InstallationDate: Installed on 2016-05-03 (5 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: os-prober
UpgradeStatus: No upgrade log present (probably fresh install)