[mythtv-users] Interesting update

[Mike Bibbings]

On 09/07/18 13:13, Don Brett wrote:
> On 7/8/2018 11:58 AM, Jan Ceuleers wrote:
>> On 08/07/18 16:01, Stephen Worthington wrote:
>>> On Sun, 8 Jul 2018 08:46:52 -0400, you wrote:
>>>
>>>> On 7/7/2018 10:21 PM, Stephen Worthington wrote:
>>>>> On Sat, 7 Jul 2018 21:57:05 -0400, you wrote:
>>>>>
>>>>>> Jul  7 21:04:36 nick kernel: [ 41.946059] lircd[835]: segfault at 
>>>>>> 8 ip
>>>>>> 0000000000427cd0 sp 00007ffc3475f148 error 4 in lircd[400000+35000]
>>>>> This looks like the problem.  Lircd crashed on a segfault.
>>>>>
>>>> Coincidentally, I had a short power fail this morning and had to start
>>>> my box from scratch; remotes stopped working again.
>>>>
>>>> I just found this, sounds like a good chance it's the culprit:
>>>>
>>>> 4.15.0 update breaks LIRC
>>>> https://answers.launchpad.net/ubuntu/+question/670733
>>>>
>>>> I rebooted and picked the earlier kernel (4.13.0-45), remotes work
>>>> fine.  How do we check to see if it's been reported as a bug?
>>>>
>>>> Don
>>> What operating system are you running?  Your version of LIRC is rather
>>> old (0.9.0), which is what Ubuntu 16.04 uses.  That suggests that you
>>> are using Ubuntu 16.04 in some form.  But to get a 4.15 kernel on
>>> Ubuntu 16.04, you must have upgraded it.  Somewhere between 16.04 and
>>> 18.04, a proper up-to-date version of LIRC was introduced, and I think
>>> it is likely to not have this problem.  It is likely only the
>>> combination of a fairly new kernel and the old 0.9.0 LIRC that is
>>> causing this.
>> Note that Ubuntu 16.04's original kernel was 4.4. But Ubuntu are now
>> tracking more recent kernel versions in subsequent point releases. The
>> 16.04.5 point release upgraded the kernel from 4.13 to 4.15.
>>
>> More here:
>>
>> https://wiki.ubuntu.com/Kernel/LTSEnablementStack
>>
>> HTH, Jan
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> Yes, I'm running 16.04....seems like I just build this box.  I'll keep 
> running the earlier kernel on this one and build a replacement with 
> 18.04 in parallel.  I see that the newest and recommended method is to 
> install a basic Ubuntu desktop, then install Mythtv via apt-get and do 
> updates with ppa; does that sound correct?
>
> Don 

I recently updated my Xubuntu 16.04 systems to Xubuntu 18.04, by clean 
install (not in-place upgrade, need to wait till at least 18.04.1 for this).

I would use the mythbuntu ppa immediately, as this contains a more up to 
date version of mythtv than in Ubuntu repository, differences between 
the two will only increase as time goes by.

Currently mysql database server is installed by default, if you prefer 
mariadb instead, just use  "sudo apt install mariadb-server" before 
installing mythtv from the ppa.

Mike