ao wrote:

> I've got a RAID array setup using RAIDFrame, and I'm trying to run
> tunefs on it to turn down the reserved space. I'm getting errors while
> the array is both mounted and unmounted, and also after a fresh reboot
> and before mounting.
> 
>  Below is what I'm trying,
> 
> root@orange:~# df
> Filesystem    Size     Used     Avail Capacity  Mounted on
> /dev/sd0a      44G      38G      3.8G    91%    /
> kernfs        1.0K     1.0K        0B   100%    /kern
> /dev/raid0a   267G     223G       31G    87%    /export/raid0
> root@orange:~# tunefs -m 0 /dev/raid0a
> tunefs: /dev/raid0a: Device busy
> root@orange:~# umount -f /export/raid0/
> root@orange:~# tunefs -m 0 /dev/raid0a
> tunefs: tuning /dev/raid0a
> tunefs: minimum percentage of free space changes from 5% to 0%
> tunefs: should optimize for space with minfree < 5%
> tunefs: /dev/raid0a: writing 8192 bytes: Read-only file system

You should use the raw device (/dev/rraid0a) with the filesystem
unmounted.

Simon.
--
Simon Burge                            <simonb@wasabisystems.com>
NetBSD Support and Service:         http://www.wasabisystems.com/