xfs grub2-install

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Hi,
I wish to make new disk /dev/sdb bootable.Is grub2-install unsupported on xfs?
How can I make an xfs disk bootable?
I have centos 7 with /dev/sda1 and /dev/sda2 for /boot and /.

[root@localhost ~]# mkfs.xfs /dev/sdb
meta-data=/dev/sdb isize=512 agcount=4, agsize=1310720 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=5242880, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]# grub2-install /dev/sdb
Installing for i386-pc platform.
grub2-install: error: hostdisk//dev/sdb appears to contain a xfs filesystem whic h isn't known to reserve space for DOS-style boot. Installing GRUB there could result in FILESYSTEM DESTRUCTION if valuable data is overwritten by grub-setup (

mt

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