Anyone else trying out the new btrfs file system?

[Mike Fedyk]

On Sun, May 23, 2010 at 1:46 PM, Charlie Brune <Ubuntu at bruneworld.com> wrote:
> On 05/23/2010 02:22 PM, Mike Fedyk wrote:
>> On Sun, May 23, 2010 at 12:03 PM, NoOp<glgxg at sbcglobal.net>  wrote:
>>
>>> On 05/23/2010 10:47 AM, Charlie Brune wrote:
>>>
>>>> I've been looking at the new "btrfs" file system and it looks promising.
>>>>
>>>> Some of its design goals are:
>>>> -- Online defrag
>>>> -- Online resizing
>>>> -- Snapshots
>>>> ... and much more.  Wiki is at
>>>> https://btrfs.wiki.kernel.org/index.php/Main_Page
>>>>
>>>> It looks like, ultimately, btrfs is the file system that we'll all be using.
>>>>
>>>> So ... I'm wondering if anyone else out there is trying it out.  In
>>>> 10.04, you can download btrfs-tools and create btrfs file systems.
>>>>
>>>> I still haven't figured out how to resize a subvolume and some of the
>>>> other stuff.
>>>>
>>>> Keep in mind that it's still labeled as "experimental", so don't trust
>>>> your important data with it just yet.  I have my btrfs file system
>>>> created on a 32G thumbdrive.
>>>>
>>> http://www.netsplit.com/2010/05/14/btrfs-by-default-in-maverick/
>>> <quote>
>>> It’s a tough gauntlet, and it would only made with the knowledge that
>>> production servers and desktops can be run on Lucid as a fully supported
>>> version of Ubuntu at the same time.  I’d give it a 1-in-5 chance.
>>> </quote>
>>>
>>> More:
>>> <http://www.webupd8.org/2010/05/20-chances-to-get-btrfs-in-ubuntu-1010.html>
>>> http://en.wikipedia.org/wiki/Btrfs
>>>
>> Be advised.  You'll want to use the latest upstream kernel, to my
>> knowledge Ubuntu is not backporting any of the latest fixes into the
>> 2.6.32 kernel in 10.04.
>>
>>
> I've gotten it to work with 10.04 by loading the btrfs-tools package.
>
> The challenge so far is that it looks like this package hasn't been
> updated since last June.  :(   This version doesn't support deleting
> subvolumes.
>

If you use old versions of the btrfs kernel module you are asking for
trouble.  Make sure you're using the latest kernel when you use btrfs.
 You do have good working backups right?  If not then stay away from
btrfs or any experimental filesystem.  You have been warned.