Hi,
I tried to install Void to XFS root partition without separate partition for /boot.
Installation passed without problem, but when reboot I get this error:

Error: attempt to read or write outside of partition
Error: not a correct XFS inode.
Error: file '/boot/grub/i383-pc/normal.mod' not found

After that I just install Void on ext4 formated root and home partitions and now works.
Am i doing something wrong when installing on XFS filesystem (i used void-installer)
It is something related to this? :
http://lists.opensuse.org/opensuse-factory/2014-06/msg00179.html