[mythtvnz] Storage drive won't mount

[Paulgir]

On Tue, 23 Apr 2013 17:13:50 +1200, Stephen Worthington  
<stephen_agent at jsw.gen.nz> wrote:

> On Tue, 23 Apr 2013 06:16:40 +1200, you wrote:
>
>
>>> And what sort of TV?  Some TVs have updated firmware available to fix
>>> problems like that.
>>
>> Panasonic Viera
>
> The first digital TV I used with MythTV was a Panasonic Viera with the
> lower "HD Ready" resolution.  It was not a good experience, as its
> EDID data was actually incorrect in places and I never found any way
> to turn off the silly overscan it did.  So when I wanted to upgrade to
> a "Full HD" 1920x1080 TV, I did some research and found that Sony TVs
> at the time had a reputation of being much more well behaved.  I got a
> Sony Bravia KDL-32V5500, which I have been pretty happy with.  When
> connected to a PC, it does not do overscan, and I was able to remove
> all my xorg.conf tricks and just let the EDID data do its job.  The
> only real complaint I have about the Sony is that when it turns on its
> screen, or when it changes screen mode, it displays overlayed data for
> quite some time that interferes with seeing the picture.  I have not
> found any way to turn off the overlays, but I can get rid of them
> manually with the remote by pushing the "Options" button twice.
>
My TV is one of the "HD Ready" types too,but I have never had any problems
with overscan.  -That I'm aware of. How did those problems manifest  
themselves?

> As to Panasonics, I have just checked the old boot partition I was
> running on when I had mine, and I still seem to have various xorg.conf
> files there that I used with it.  Everything has moved on since then
> (TVs, Nvidia video cards, Nvidia drivers and X itself), but they might
> be of some help to you.
>
> I did some experiments with my mother's MythTV box.  This has an
> identical TV to mine, and a builtin Nvidia 8200.  I tried booting with
> the TV off, unplugged from the power, and unplugged from the HDMI at
> the PC.  It rebooted just fine with the TV's mains switch off, and
> with the TV completely unplugged from the power.  It rebooted without
> any display when I unplugged the HDMI at the PC.  From that I think
> the PC must be remembering the EDID data even when it is unable to
> read it from the TV.  But when the HDMI cable is unplugged, it assumes
> that it might be getting a different device to talk to and then
> forgets the existing EDID data.
>
I always use the power switch on the TV. So when it is off it is unpowered.

The system I use is that I have a hardware timer on the mythtv box that  
comes.
On at 18:00 each day if I am not at home to start recording the evening  
selections.
The BIOS on the box is set to boot on power up.The hardware timer has a  
manual
override that allows me to turn on the box anytime.I have a crontab entry
to shutdown the system and poweroff the box at 04:00,that the hardware  
timer
disconnects the power at 04:10.
There is another hardware timer for the TV which comes on at 17:55 just  
before the
mythbox boots,so that the tv is on before the box.I set that to auto when  
I know
I won't be home,but sometimes I forget to set it to auto.
I do it this way because of I have a lot of power cuts  here,mainly during  
the day
and I prefer not to have power on sensitive devices 24/7.The power often  
resumes in
messy fashion and can go on and off several times in minutes.This is  
northwest
Auckland and the wonderful deregulated power system Key was referring to  
recently.
No huddling around a candle for us like we did in the seventies.Well no  
more than
a dozen times a year,anyway.


> After booting with the HDMI unplugged, I plugged in the HDMI again,
> and still got no display.  So I logged in as root via ssh and found
> that the display manager (lightdm) was not running.  I did a "start
> lightdm" command, and the display started properly.  So in your case,
> instead of doing a "poweroff" or "reboot" command, you might like to
> try "start lightdm" and see what happens.  First check which display
> manager you have configured - there is a choice between installing
> lightdm and gdm as part of the Mythbuntu installer, so run a "ps -e |
> grep dm" command while the display is working and see which one is
> running.  If you are running gdm, then the command is "start gdm".

I will look into that.In the meantime I tried your suggestion of  
Ctrl-Alt-F1
to login as root and found the from the password prompt Ctrl-Alt-Del
will reboot the system.
This should be a gentle enough reboot to avoid any trouble,shouldn't it?

I install jfs-utils and sudo fsck -C -f /dev/sdb1 sorted out the
/var/lib/mythtv mounting problem.

Thanks for the assistance on these problems.I still have a couple of other  
bugs
to iron out and will raise these after googling for solutions.

Paul