[mythtvnz] Mythbuntu 16.04 user experiences

[Paulgir]

On Tue, 19 Jul 2016 04:31:49 +1200, Stephen Worthington  
<stephen_agent at jsw.gen.nz> wrote:


>
> If you have not already upgraded to MythTV 0.28, it would be sensible
> to do that first on your current system, if possible.  Then do the OS
> upgrade separately.
>
> One problem I have found with my testing of 16.04 so far is that the
> new version of mysql is using the editline library (from FreeBSD?)
> instead of the readline library in its utility programs.  Since I use
> the SQL command line quite a bit, that is a serious problem for me as
> editline does not do the right sort of things for bringing back
> commands out of my command history for me to re-use.  So on my test
> box, I replaced mysql with MariaDB, which still uses readline and is
> going to keep doing so.
>
> Apparently Oracle have a problem with the GPL (or is it LGPL) license
> and are trying to remove all such software from mysql, so they will
> not be going back to readline, despite the bug reports filed about
> this problem.  So it is unlikely I will ever be using mysql again as
> this problem is a deal breaker for me.
>
> Fortunately, MariaDB seems to work just fine as a replacement for
> mysql.  It is now the default database in Fedora anyway, and no one
> seems to be complaining about problems.  Swapping to it was far from
> easy though, as the process results in uninstalling of the MythTV
> packages before the change can happen.  And the mythexport package
> seems to be built with the wrong dependency, as it requires the real
> mysql packages and wants to uninstall MariaDB and reinstall mysql if
> you try to install it.  I need to file a bug report with the Mythbuntu
> maintainers about that.
>
> So if you want to switch to MariaDB also, make sure you have a good
> backup of your MythTV database.
>
> I am still debating with myself about whether I will be upgrading in
> place from 14.04 to 16.04.1 when it comes out, or whether I will move
> my database over to a new 16.04.1 install.  I have done both types of
> upgrade in the past, and there are problems and benefits for both
> paths.  At least I now have an ultra-fast SSD drive to boot from, so
> the upgrade process will be able to be done in the available time
> between recordings - my MythTV box is pretty busy most days, but there
> is usually one or two days a week with a gap of 8 hours or so between
> recordings.  Without the SSD, I am not sure if 8 hours would be enough
> to safely do a full upgrade.
>

Thanks for the detailed reply.I don't use the SQL command line due to fear  
and ignorance.You don't mention any other problems so I take it that it  
has no other major problems?
I'm still on 12.04 and,correct me if I'm wrong,there is no upgrade path  
 from that.I intend to install the new system on an SSD but keep 12.04 on  
it's original drive until I'm happy that everything is running.