XFS root filesystem running on Debian

[GCS <gcs@xxxxxxxxxxxxxxxx>]

Hello,

I changed to XFS for a while. It was strange, I had some errors too.
The most strange things were:
- mount said '/' is ext2, even if fstab contains xfs.
- on reboot it could not unmount ext2 filesystems correctly, boot time it
had to fsck all the ext2 filesystems on the hdd.

Is the white paper ready 'how to change the root filesystem to xfs'?
Thanks.