[mythtv-users] Undo 14.04 LTS update

[Thomas Mashos]

On Thu, Jul 30, 2015 at 3:14 PM Daryl McDonald <darylangela at gmail.com>
wrote:

>
> On Jul 30, 2015 10:36 AM, "Mike Perkins" <mikep at randomtraveller.org.uk>
> wrote:
> >
> > On 30/07/15 15:07, Stuart Auchterlonie wrote:
> >>
> >> On 30/07/15 12:22, Daryl McDonald wrote:
> >>>
> >>>
> >>> On Jul 30, 2015 4:04 AM, "Mike Perkins" <mikep at randomtraveller.org.uk
> >>> <mailto:mikep at randomtraveller.org.uk>> wrote:
> >>>>
> >>>>
> >>>> On 30/07/15 00:32, Robin Gilks wrote:
> >>>>>
> >>>>>
> >>>>> Greetings all
> >>>>>
> >>>>> Since I've not had a problem with it on a couple of *buntu installs,
> I
> >>>>> updated my Mythbuntu frontend with the "LTS Enablement Stacks" and
> its a
> >>>>> disaster :(
> >>>>>
> >>>>> The box randomly gets into a stuttering state that requires a reboot
> to
> >>>>> fix it during which time it runs much hotter.
> >>>>>
> >>>>> I'm pretty sure the kernel upgrade is OK (fixes USB3 mceusb remote
> >>>
> >>> issues)
> >>>>>
> >>>>> but the xserver and mesa updates seem to be what has broken things.
> >>>>>
> >>>>> The original update was
> >>>>> "sudo apt-get install --install-recommends linux-generic-lts-utopic
> >>>>> xserver-xorg-lts-utopic libgl1-mesa-glx-lts-utopic
> >>>>> libegl1-mesa-drivers-lts-utopic"
> >>>>>
> >>>>> I've no idea how I find out what was originally installed so how do I
> >>>>> revert everything bar the kernel?
> >>>>>
> >>>>> Cheers
> >>>>>
> >>>> I've always found these sorts of "upgrades" to be problematical. My
> >>>
> >>> preference is to do full backups of needed files/configurations and
> then
> >>> a clean install.
> >>>>
> >>>>
> >>>> This ensures that everything is consistent. Upgrading over the top of
> >>>
> >>> an existing install usually leaves odd library inconsistencies which
> are
> >>> difficult to resolve.
> >>>>
> >>>>
> >>>> --
> >>>>
> >>>> Mike Perkins
> >>>>
> >>>
> >>> Mike what is your method for getting that full backup? Is there a
> script
> >>> that separates the myth add ons from the previous install?
> >>>
> >>>
> >>
> >> Personally i would use the "seat of pants" method. (Not suitable for
> >> novice installers)
> >>
> >> ie. If you store all your recordings on a separate drive / partition
> >> then you dump your full database to that partition, with anything else
> >> interesting like ssh keys.
> >>
> >> Then go forth, and re-install making sure not to reformat the recordings
> >> drive / partition.
> >>
> >> Once the OS is install get mythtv built / installed, restore database,
> >> cross fingers and start it all up.
> >>
> >> If it all goes wrong you get to restore from backup.. ;-)
> >> I did mention this was the "seat of pants" method and contains no
> >> backup instructions at all...
> >>
> > Almost exactly it. I have a "backup" directory on my first recording
> volume, which is where the db backups usually go anyway.
> >
> > As well as those I make sure I have copies of things like config.xml and
> selected items like ssh keys and ntp.conf, my.conf, and so on.
> >
> > Note: If you do do this, be aware that some OSs create the mysql
> database with a new, randomized mythtv password! Of course you can
> overwrite this when you restore but it might cause some head-scratching.
> >
> > Oh, and my policy on a new install is always to create the 'mythtv' user
> *before* installing the mythtv software. This ensures that it is created as
> a regular user, with a home directory under /home, not /var/lib. It also
> means you get to choose the uid, gid, etc if that is important to you.
> >
> > --
> >
> > Mike Perkins
> >
> >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://lists.mythtv.org/mailman/listinfo/mythtv-users
> > http://wiki.mythtv.org/Mailing_List_etiquette
> > MythTV Forums: https://forum.mythtv.org
>
> 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?
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I'm hoping to have a much better way to upgrade in the future in the way of
Ubuntu snappy. However I keep running into the following error message

INVALID TIME CANNOT BE < 0

I really need to get that fixed.
-- 
Thomas Mashos
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