[mythtv-users] LIRC and MythBuntu 10.10

Jarod Wilson jarod at wilsonet.com
Mon Apr 18 13:59:24 UTC 2011

On Apr 16, 2011, at 4:08 PM, Mark Lord wrote:

> On 11-04-16 02:00 PM, Jarod Wilson wrote:
>> On Apr 15, 2011, at 11:01 PM, f-myth-users at media.mit.edu wrote:
>>>> Date: Fri, 15 Apr 2011 13:47:16 -0400
>>>> From: Jarod Wilson <jarod at wilsonet.com>
>>>> looks like that fix went in post-2.6.37, and 11.04 is shipping with
>>>> a 2.6.37.x-based kernel.
>>> No it's not.  Current 11.04 is already 2.6.38-8, which I'm running on
>>> an experimental basis on a test machine here.
>> Ah, so it is. Good. So the state of IR should actually be pretty sane
>> for the next 6 months.
>>> http://kernel.ubuntu.com/~kernel-ppa/info/kernel-version-map.html
>> Its a travesty that something like that is required to figure out what
>> upstream kernel a given ubuntu kernel is actually based on...
> Actually, as far as mainstream distros go, that's pretty good.

No, actually, its not. :)

> Just try figuring out a Redhat kernel.. sure there's a major
> version number (like 2.6.32), but the subsystems inside could be
> from completely different major versions.  And then there's all
> of those patches mashed together into a single source blob..

The Red Hat Enterprise Linux 6 kernel *is* in fact based upon an
upstream 2.6.32 kernel. But there are thousands of patches on top
of that. And a 10-year life cycle with a stable kernel ABI promise.
Features get backported from newer kernels. Entire subsystems get
updated. But its never claimed that its anything close to being an
upstream kernel. Its a very different situation from a rolling
release community distribution. Try looking at Fedora instead. :)

Current latest built Fedora 13 kernel:
 kernel- ==> upstream kernel

Current latest build Fedora 14 kernel:
 kernel- ==> upstream kernel

Current latest built Fedora 15 kernel:
 kernel- ==> upstream kernel

Where it gets more interesting, current rawhide kernel:
 kernel-2.6.39-0.rc3.git2.0.fc16 ==> upstream 2.6.39-rc3-git2 kernel

From either package name or uname -r output alone, you can tell
exactly what upstream kernel, including git and rc snapshot kernels,
the Fedora kernel is based upon. No lookup table required. Its been
that way since mid-2007 and kernel 2.6.22.

Jarod Wilson
jarod at wilsonet.com

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