> what exactely does the kernel do when it says the recovery thing ?
It re-plays the log to commit transactions which were still in the log
when your power failed.
> why a ext2-fs warning ?
Not sure - do you have ANY ext2 filesystems on this box?
> on the future release of xfs, when will we have to do a new mkfs.xfs ?
> or only a kernel release ?
The on-disk format is fixed (it's been around for years on Irix), so you
won't need to re-make any existing XFS filesystems you have, even on new
releases of XFS.
Eric Sandeen XFS for Linux http://oss.sgi.com/projects/xfs
sandeen@xxxxxxx SGI, Inc.