On Dec 24, 2012, at 10:52 AM, Goffredo Baroncelli [off-list ref] wrote:

Hi, Chrism

On 12/23/2012 10:11 PM, Chris Murphy wrote:

quoted

Hi,

I'm not completely sure if this is a wipefs bug, or a btrfs(-progs)
bug. The gist is that after using wipefs on a btrfs formatted
partition, then reformatted as ext4, mount sees it as ext4, parted
sees it as ext4, but I btrfs fi show sees it as a member device of a
btrfs volume. I have filed a bug against util-linux, but perhaps this
is a btrfs-progs over confidence in what it thinks is a valid volume.
I have included in the bug report the first 5MB of the device.

https://bugzilla.redhat.com/show_bug.cgi?id=889888

I cannot reproduce this behaviour [1]. However I have to point out that
this [2][3] patch solved a problem like you reported.

Which version of btrfs-progs do you have ? It seems that F18 (beta)
already has the latest btrfs-progs suite..

This happens with the current F18 test candidates, which have btrfs-progs-0.20.rc1.20121017git91d9eec-1.fc18


Chris Murphy