[mythtv-users] upgrade

Tue Aug 19 15:27:15 UTC 2014

On Aug 19, 2014 10:31 AM, "Mark Perkins" <perkins1724 at hotmail.com> wrote:
>
>
>
> On 19 Aug 2014, at 11:50 pm, "Mark Perkins" <perkins1724 at hotmail.com>
wrote:
>
>>
>>
>> On 19 Aug 2014, at 10:04 pm, "Daryl McDonald" <darylangela at gmail.com>
wrote:
>>
>>>
>>> On Aug 19, 2014 8:25 AM, "Mark Perkins" <perkins1724 at hotmail.com> wrote:
>>> >
>>> >
>>> >
>>> > > On 19 Aug 2014, at 6:33 pm, "Mike Perkins" <
mikep at randomtraveller.org.uk> wrote:
>>> > >
>>> > >> On 19/08/14 04:27, Mark Perkins wrote:
>>> > >>
>>> > >>> My experience with update manager is just the opposite, except
where mythtv is concerned. Several distros of Ubuntu on at least seven PC's
have gone flawlessly.
>>> > >>> If I try it with TTY and encounter similar errors/warnings, is
there a way to save them, say to a flash drive or somewhere? With recent
attempts I could not get back into the unsuccessfully upgraded OS to review
any details or logs etc.
>>> > >>> I guess a pen and paper would work, so tedious though.
Suggestions?   Daryl
>>> > >>> _______________________________________________
>>> > >>
>>> > >> IIRC you can't copy / paste between the TTY consoles and the main
desktop. The usual way to do it would be either toggle back to your desktop
(Ctrl-alt-F7) and browse for the log files or open a second TTY
(Ctrl-alt-f1 through f6) and look for log files.
>>> > >>
>>> > >> But maybe you can tee everything that gets displayed as stdout to
your own file? Someone else will have to help with the syntax but maybe
something like this (in concept):
>>> > >>
>>> > >> sudo su -
>>> > >> apt-get update
>>> > >> apt-get -y dist-upgrade 2>&1 | tee /home/daryl/tmp_apt-get_log.log
>>> > >> /etc/init.d/mythtv-backend stop
>>> > >> do-release-upgrade 2>&1 | tee /home/daryl/tmp_upgrade_log.log
>>> > >> reboot
>>> > >>
>>> > >> The aim of what I am suggesting is to get a copy of the output
into a temp log file (and to screen while it is happening) so you can
easily browse from your desktop and copy / paste from (if necessary) later.
Hopefully someone can fine-tune the syntax appropriately.
>>> > > There is another way to get useable / copyable console output and
that is to open a terminal from your desktop! That is the way I run
myth{backend|frontend|filldatabase} when I am debugging.
>>> > >
>>> > > By doing that you get a nice big scrollable buffer which you can
look back through at your leisure (assuming the thing hasn't hung, of
course).
>>> > >
>>> > > Another advantage of such terminals is that you can highlight
portions you want to keep with the mouse and then paste them into your
favorite editor for saving or printing.
>>> > >
>>> > > --
>>> > >
>>> > > Mike Perkins
>>> > >
>>> > > _______________________________________________
>>> >
>>> > I don't know if there is a technical difference between a TTY console
and a plain old terminal window? In the past I've assumed that TTY was less
likely to be fouled by whatever was going on in your desktop instance, but
it's just an assumption.
>>> >
>>> > Certainly I have had times when I couldn't get a terminal window but
TTY worked fine?
>>> > _______________________________________________
>>> > mythtv-users mailing list
>>> > mythtv-users at mythtv.org
>>> > http://www.mythtv.org/mailman/listinfo/mythtv-users
>>> > http://wiki.mythtv.org/Mailing_List_etiquette
>>> > MythTV Forums: https://forum.mythtv.org
>>>
>>> My experience with previous attempts is that the upgraded OS is
unusable after the process, so creating a log in that file system would
render it lost. Could it be directed to a thumb drive? That way I could
open it afterwards on a functional system for review.  Daryl
>>>
>>> _______________________________________________
>>
>>
>> Just use your Mythbuntu 14.04 cd as a live cd (ie boot from cd). Or
Ubuntu 12.04 or really whatever you happen to have lying around. That would
get you a fully functioning OS and access to the hard disks. It would also
give you access to some useful recovery tools (for repairing boot
partitions and the like should that be determined to be required).
>>
>> Although it is probably unlikely that the system could not be convinced
to boot in some fashion, but we would need to know more specific details
about what exactly happens after reboot. Do you get dumped to a shell /
command prompt? Or black screen? What is the last thing you see on the
screen?
>>
>> This link has some info on accessing recovery mode
https://wiki.ubuntu.com/RecoveryMode
>>
>> It would be surprising (to say the least) if the upgrade left your
system unable to access at least recovery mode and I suspect some of the
guru's on this list would have it back up and running in a few short
minutes.
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>> http://wiki.mythtv.org/Mailing_List_etiquette
>> MythTV Forums: https://forum.mythtv.org
>
>
> Even on a completely black screen, if you just wait long enough for a
'normal' boot to complete then hit Ctrl-alt-f1 you might get a TTY and a
(text) display straight away!
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users
> http://wiki.mythtv.org/Mailing_List_etiquette
> MythTV Forums: https://forum.mythtv.org
>
Recently it has been freezing at the purple Ubuntu with five dots screen,
so grub is working but OS won't load, IIRC trying to access upgraded
partition from live CD or other means was unsuccessful. If I try the
upgrade from a terminal without using update manager, could I before a
restart, copy and paste the terminal output into office writer and move it
to a flash drive for later access/sharing?   Daryl
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