[mythtv-users] no live tv
james at ultratans.com
Thu Jul 17 12:18:22 UTC 2008
On Thu, 2008-07-17 at 16:09 +1200, Nick Rout wrote:
> On Thu, Jul 17, 2008 at 1:01 PM, Josh White <jaw1959 at gmail.com> wrote:
> > Please help!
> > I've had an nice running myth setup on Ubuntu since 8.04 was ready. Today,
> > I did an update that included a new kernel version, and now I have problems
> > on two of my systems. My main backend seems to run fine, but when I connect
> > to it from any of my frontends, I have no live TV, and it shows that I have
> > no recordings. I've checked my recordings directory (which is on a couple
> > of harddrives, LVM style, and all they do is store recordings) and
> > everything appears as it should. Otherwise, myth seems to work, I can
> > connect to my videos library, and everything seems fine. So does this mean
> > my database is messed up? I've never experienced a problem like this
> > before. Also, during the same update on my main desktop machine, also
> > running Ubuntu 8.04 (which also occasionally serves as a frontend on one of
> > the two displays) I seem to have a different problem. On that machine, my
> > video and sound seem not to work. I have to run the video with the VESA
> > driver to load X, and I've yet to make audio work at all.
> > Has anyone running ubuntu/mythbuntu experienced similar problems in the last
> > day or so? I download updates daily, and usually install them daily, and
> > that has served me well for the last year or so (of course, the 8 of the
> > last 12 months were running on 7.04 and 7.10). Is this just a new lesson
> > for why I should be constantly paranoid and terrified about updates?
> > I'd like to simply undo the last update, but I'm afraid I don't know how to
> > do that. Any advice would be appreciated, and let me know if I can provide
> > any further details.
> > Thanks,
> > Josh
> Repeat after me: "I shall not fiddle with my working MythTV system!"
> No, not struck this, but I don't update my 8.04 mythbuntu box. I'll
> let you know if my desktop is screwed after i get home and reboot it
> following the latest update.
> mythtv-users mailing list
> mythtv-users at mythtv.org
Mythbuntu 8.04 has had several kernel revisions since it was released. A
quick way to test if it was the new kernel is to attach a keyboard and
press ESC to get to the boot menu. Your older kernels should still be
there and you can choose one to boot.
If attaching a keyboard is not practical you can also ssh into the box
and force grub to use the older kernel by default.
Look for the section (at the bottom of the file) that lists the kernels.
Copy/paste the lines for the older kernel above the lines for the newer
kernel and then reboot.
Here is what mine would look like if I wanted to boot the original
kernel (some lines are wrapped):
title Ubuntu 8.04.1, kernel 2.6.24-16-generic (recovery mode)
root=UUID=2ef2c79b-0495-4a52-9d59-a83e5a870371 ro single
title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root=UUID=2ef2c79b-0495-4a52-9d59-a83e5a870371 ro quiet splash
The original Ubuntu 8.04 kernel was 2.6.24-16-generic. If the lines for
it appear first then it will be the default chosen by Grub. The downside
to this is that you must redo the edit to /boot/grub/menu.lst every time
a new kernel is installed.
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