[mythtv-users] Undo 14.04 LTS update

[Peter Bennett (cats22)]

On 07/31/2015 05:49 AM, Stuart Auchterlonie wrote:
> On 30/07/15 23:13, Daryl McDonald wrote:
>> Maybe I'm being naive, but the elegance of Mythtv that I've seen so far
>> leads me to believe there would be a more elegant, less blood sweat and
>> tears way to upgrade our OS. Something like running "diff" against a
>> "rsync'd" OS backup  and a fresh install and then have the product
>> "automagically" inserted appropriately into the new OS release? Is this
>> even possible? When I upgraded from 12.04 to 14.04, there was plenty of
>> B,S,&T, due to poor memory of the five or six things (udev, etc) beyond
>> the database backup and usually only a short window of opportunity to
>> get'er done.
>>
>> Thoughts?
>>
> Hmmm, I just updated the OS (ie. do-release-upgrade), did a did a full
> clean rebuild of mythtv (ie. make distclean; configure etc etc) and
> it all kept working.
>
> I've also done the same with my fedora installs. f20->f21->f22 using
> fedup
>
> But then I never use the distro packaged versions since I work on the
> code.
>
>
> Regards
> Stuart
>
>

What I do is keep two 30GB partitions for 2 copies of the operating
system, and each upgrade I clean install into the other then switch the
boot sequence in grub. This makes for a very easy rollback if needed. I
make sure to create the mythtv user and group with the same uid and
group id as before so that they can access and update the recordings.
Install mythtv in the new partition and restore the database there.

Peter