[mythtvnz] Storage drive won't mount

Paulgir paulgir at gmail.com
Mon Apr 22 19:16:40 BST 2013


>>> _______________________________________________
>> Thanks Stephen
>>
>> Yes it is JFS and the disk utility did state that it was not clean.
>> As for  your second suggestion,my system does not usually show the grub
>> menu as it boots.
>> I seem to recall that hitting the shift key or something during boot  
>> will
>> bring it up.
>
> I always get the Grub menu on my systems, so I am not sure why you do
> not.  I am sure there is an option to make it default to displaying
> the menu.  Take a look at these:
>
>
> http://askubuntu.com/questions/16042/how-to-get-to-the-grub-menu-at-boot-time-on-a-single-boot-system-not-dual-boot
>   https://help.ubuntu.com/community/Grub2
>
>> On another subject regarding booting, If the system boots with the TV
>> turned off the graphics
>> card  doesn't get any information about the display type and  
>> consequently
>> I get no image
>> on the screen.I usually wait and when there is no disk activity shown by
>> the drive LED,
>> hit the reset button but I don't really like to have to do that.
>> Is there another method (without being able to see a display) to get the
>> graphics to restart?
>> I've tried to blindly step back to the shutdown option with <esc> and  
>> the
>> down arrow key,but
>> that never works.
>> I am assuming of course that the keyboard is functional at this point.
>
> Hitting the reset button is a bad thing to do.  If you have to, it is
> best to wait until activity stops and the hard disks have been quiet
> for at least 10 seconds, so there is a chance they will have flushed
> all the cached data to disk.  That usually works well with EXT3
> partitions, but not so well with EXT4 which gets some of its improved
> performance by not flushing things as EXT3 does.  JFS partitions will
> normally be dirty on reboot after that (if they have been written to)
> and will need at least their journal data re-written to their main
> disk area, so always run fsck on them.
>
> It would be possible to do a blind shutdown using one of the full
> screen logins - I have had to do that on occasion when I have had
> video driver problems and it does work.  Wait for all booting activity
> to complete, Ctrl-Alt-F1, enter the username "root", then the root
> password, then a "poweroff" or "reboot" command.  Make sure to leave a
> delay for Ctrl-Alt-F1 to happen and again for the login to complete
> before typing the command.  Practice it with the screen working to
> make sure you know how it works.  Have you set a root password so you
> can directly log in to do that?  Just do an "sudo passwd" command to
> set the root password.

So Ctrl-Alt-F1 will work after mythfrontend has started?
>
> And if the PC is on a network, you should have ssh set up so that you
> can do a remote login for this sort of thing.

I will look into ssh
>
> It might also be possible to program a hotkey sequence somehow that
> did a shutdown.  I have never tried doing hotkeys on Ubuntu, but I
> think it is likely someone has done hotkey software for it.  Maybe
> Win-S for shutdown.
>
> As to getting the TV to work when it gets into that state, have you
> tried unplugging it and plugging it in again at the PC?  Lots of video
> cards will detect the plugging in and retry starting the video, so it
> may just start working.  If not, then you should probably not be
> relying on the EDID data from the TV to set the video mode.  There are
> various ways of handling that, for example you can get a copy of the
> EDID data and get the video drivers to work from that copy on hard
> disk in Nvidia drivers.  Or you can put modelines in the xorg.conf
> file to describe the modes required, and force the video drivers to
> not look for EDID data.  These things get quite complicated though -
> xorg.conf is a diabolical config file to work with.  What sort of
> video card is it?

It is an NVidea card GT420.
I have tried turning it off ,but not unplugging it.It's connected via HDMI.
>
> And what sort of TV?  Some TVs have updated firmware available to fix
> problems like that.

Panasonic Viera

Paul



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