This allows mounting XFS partitons with 'dirty' states, like from a running VM. Otherwise XFS tries to write recovery information, which fails on a read-only mount. Tested-by: Thomas Lamprecht <t.lamprecht@proxmox.com> Tested-by: Dominik Csapak <d.csapak@proxmox.com> Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>