Re: Problems with compiling btrfs

[Eric Sandeen <sandeen@redhat.com>]

On 3/21/13 5:23 PM, Mitch Harder wrote:
> On Thu, Mar 21, 2013 at 4:46 PM, Avi Miller <avi.miller@oracle.com> wrote:
>> Hi,
>>
>> On 22/03/2013, at 8:11 AM, Joseph Moore <japlha@gmail.com> wrote:
>>
>>> [root@ol6 btrfs-progs]# uname -a
>>> Linux ol6.localdomain 2.6.39-400.17.2.el6uek.x86_64 #1 SMP Wed Mar 13
>>> 12:31:05 PDT 2013 x86_64 x86_64 x86_64 GNU/Linux
>>
>>
>> This is the currently shipping Oracle Linux 6 UEK and as such, doesn't support a newer btrfs-progs. If you want to run a newer btrfs, you should install the 3.8 kernel from our playground channel on public-yum.oracle.com and then you can compile a newer btrfs-progs to match.
>>
>> I've also asked the playground build team to build a newer btrfs-progs RPM for the playground channel, but I'm not sure what the timeframes on that would be.
>>
>> --
>> Oracle <http://www.oracle.com>
>> Avi Miller | Principal Program Manager | +61 (412) 229 687
>> Oracle Linux and Virtualization
>> 417 St Kilda Road, Melbourne, Victoria 3004 Australia
>>
> 
> I have also run into the same problem on Enterprise Linux 6.3
> (Scientific Linux in my case).
> 
> It is relatively trivial to get a current kernel from sources like
> ELREPO, so I was hoping to use my Scientific Linux partition at least
> for rescue and evaluation.
> 
> Is the position of the Btrfs Developer community that Enterprise Linux
> 6.x is not to be supported?

The Btrfs Developer Community really cannot support btrfs in a distro,
aside from answering some basic questions, perhaps.  If you have a distro
problem, report it to your distro; if you have an upstream problem, report
it upstream.  If your distro is close to upstream, you'll probably get
some help & attention from upstream.

As for RHEL6, btrfs is tech preview [1], and bug reports are appreciated
from RHEL users.  

Neither Red Hat nor upstream developers (or the people in the middle of
that Venn diagram) are really in a place to support a rebuilt version
of a commercial enterprise distro.  Often as not, that's "keep both pieces
when it breaks" land.

note: I believe that if you get upstream btrfs-progs building on a rhel6-alike,
you'll quickly run into another issue when you try to mount it.

If you want bleeding-edge btrfs, you should probably stick with bleeding-edge
kernels one way or another.

-Eric

[1] https://access.redhat.com/support/offerings/techpreview/