[mythtvnz] Mythbuntu / MythTV 0.29

[Paul]

Thanks for the info Stephen

I use a wireless USB mini keyboard so no lirc .No Mythweb either.

I will be  doing a fresh install on a separate SSD and keeping the 
existing install until everything works.

So I couldn't go from 0.29 to 0.31 right now if I wanted to. Is there 
any advantage upgrading the existing  system to 0.30 before transferring 
the database to the new install?

Because I'm doing the new install on a separate drive ,I can leave the 
database transfer till the install is running properly.

I prefer to do fresh installs rather than upgrades but I was not aware 
that Mythbuntu could be upgraded now that the distro is no longer 
supported/developed.

I'm in no rush to do a new install, so I will wait to see what your 
experience with 20.04 is.

Thanks

Paul


On 28/05/20 3:29 pm, Stephen Worthington wrote:
> On Thu, 28 May 2020 07:38:42 +1200, you wrote:
>
>> Hi All
>>
>> I'm preparing to install a new version of Ubuntu (Xubuntu probably) with
>> MythTV
>>
>> Currently I using Mythbuntu 16.04 and MythTV 0.29
>>
>> Should I upgrade this to MythTV 0.31 before I install the new distro? I
>> intend to install the database from the previous distro in the new one.
>>
>> Can I go from 0.29 directly to 0.31 or do I need to go to 0.30 first?
>>
>> Are there any potential problems with the MythTV upgrades? I have done
>> one in the past that went smoothly.
>>
>> Any tips / suggestions are appreciated.
>>
>> -Paul
> There are a number of potential problems with moving to a later
> version of Ubuntu.  The biggest one is that if you use an IR remote,
> then between 16.04 and 18.04 lirc changed to a major new version and
> you will need to change your configuration to match the new version.
> If you are installing 18.04, the lirc package is severely broken and
> you will need to run the fix script I wrote to fix it:
>
> http://www.jsw.gen.nz/mythtv/lirc-ubuntu-18.04-install.sh
>
> There were a number of other more minor problems I had with my upgrade
> to 18.04 - I posted about it here on the mythtv-users mailing list,
> but I can not find the thread today.  I do remember having problems
> with php being upgraded and mythweb stopping working until I fixed
> that.  And if you use mythexport that needs a fix or two for a php
> change.
>
> In 20.04, the lirc package would not install on new systems (upgrading
> older systems did work).  The fix for that is out now, but I have not
> tested any further yet to see if there are more problems after that
> show stopper one.  Given the huge number of problems lirc had in
> 18.04, I am not confident it will be OK in 20.04.  They were all
> packaging problems though - the underlying lircd daemon and lirc
> libraries were fine and would work if manually configured properly. So
> I would expect the same if there are more problems with 20.04's lirc.
> I am hoping to find some more time in the next few days to try 20.04
> and lirc again in a virtual machine.  If there are more problems with
> lirc I am happy to help fixing them - I have gotten to know a fair bit
> about lirc now.
>
> Be aware that if you want to upgrade your existing 16.04 rather than
> do a new clean install, it is not possible to officially upgrade from
> 18.04 to 20.04 yet.  That will happen with the 20.04.1 release
> expected for June some time.  Some people have forced the upgrade by
> adding the -d option to do-release-upgrade to tell it to upgrade to
> what it considers to be a development release, and have not reported
> any major problems with doing that.
>
> Upgrading MythTV multiple versions at once only requires that the
> MythTV version has the database upgrade code back to the old version
> you are running.  So 0.29 to v31 is fine.  I have not done v30 to v31
> yet due to my mother's PC having being stuck on 16.04 and the v31
> packages not being available for that.  I have now fixed that and I am
> expecting to get around to upgrading to v31 in the next month,
> preferably before 20.04.1 is out and I do that upgrade.
>
> If you are going from 0.29 to v31 you can not do that on a 16.04
> system due to the lack of v31 packages, so you would need to do that
> upgrade by installing v31 on the new system and migrating the database
> there.  It does not matter if you upgrade the MythTV version before or
> after you move to the new system, but it is probably a bit easier to
> do it before as then you are not having to fix both MythTV and system
> problems at the same time.  But you can only upgrade as far as v30
> while still on 16.04.
>
> Be aware that with the v31 upgrade in Ubuntu, MythTV migrates to using
> Python 3.  If you want to still use Python 2 with MythTV, you will
> need to compile and install MythTV from source using the option to
> compile for Python 2.  And you would need to install Python 2 on 20.04
> - it is not installed by default.  But I would recommend moving to
> Python 3 if at all possible, as you will need to make that upgrade
> soon anyway.  I will need to update all my Python 2 programs for
> MythTV to Python 3 when I upgrade, but I am not anticipating too many
> problems with that.  And I am looking forward to using all the new
> features in Python 3.
>
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