[mythtvnz] Storage drive won't mount

Paulgir paulgir at gmail.com
Wed Apr 24 03:24:00 BST 2013


On Wed, 24 Apr 2013 14:10:08 +1200, Stephen Worthington  
<stephen_agent at jsw.gen.nz> wrote:

> On Wed, 24 Apr 2013 07:23:00 +1200, you wrote:
>
>> 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?
>
> The overscan was most obvious on the GUI screens - there were things
> that were off the edge of the screen, or uncomfortably close.  On TV
> pictures overscan is less noticeable - I just get one of those
> uncomfortable "something is wrong" feelings.  The MythTV GUI has a
> setup screen where it displays a marker in each corner so you can
> check for overscan and adjust the display.  Setup->Screen Setup
> Wizards.  When I first went into that screen on my Panasonic, I could
> not see any of the corner marker at all as the overscan had it
> completely off screen, and it took me a long while to work out how
> that screen worked.
>
>> 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.
>
> Ouch, I had no idea it was that bad anywhere in NZ.  Here in
> Palmerston North, we are unlucky if we get one power failure a year.
> But then we are able to get power from across Cook Strait.  That stops
> just a bit north of us.
>
> Given that setup, I would have a good look at the options for copying
> the EDID data to hard disk and using that instead of getting it from
> the TV.  I think the option you need is:
>
>   Option "CustomEDID" "string"
>
> Take a look in /usr/share/doc/nvidia-current/html/xconfigoptions.html.
> Depending on which Nvidia drivers you are using, the "nvidia-current"
> bit might be "nvidia-current-updates" or something similar.  The
> nvidia-settings program can save the EDID data for you.  On its
> screen, select the page under your GPU that is named for your TV, and
> the "Acquire EDID" button should be on the bottom right.
>
>> 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 have never tried Ctrl-Alt-Del from there - I had no idea it would
> work.  I imagine it would do the same reboot as the reboot command,
> which would be fine.
>
>> 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
>>
Thanks Stephen,

Ctrl-Alt-Del does the same shutdown as normal - with the Ubuntu moving  
dots etc.



More information about the mythtvnz mailing list