Converting ext4 to xfs

[Michael Cronenworth]

Kwan Lowe wrote:
> I don't have a real answer except perhaps to create a new LVM for XFS
> then slowly migrate files from one LVM/fs to the other.  As you fill
> space on one, shrink the other filesystem to reclaim those LPs back
> into the VG.  It's messy but should work.  AFAIK, there is no in-place
> conversion utility as the two filesystems are quite different.

XFS doesn't support shrinking. :)

(patches existed for it but they were never accepted)